• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a pair of goggles (1) having a frame (2), the frame (2) having at least one disc receiving opening (3) for a disc, and wherein the frame (2) comprises a right nasal sub-frame (5) and a left nasal sub-frame (6) , it is proposed that a right eye detection camera (7) is disposed in the right nose frame (5), and that a left eye detection camera (8) is disposed in the left nose frame (6).
    公开号:AT513987A4
    申请号:T657/2013
    申请日:2013-08-23
    公开日:2014-09-15
    发明作者:Ernst Dipl Ing Dr Pfleger；Christoph Mag Pfleger
    申请人:Ernst Dipl Ing Dr Pfleger；
    IPC主号:
    专利说明:

    • · · · · ····· ····· • 34394 / lh
    The invention relates to a pair of spectacles according to the preamble of claim 1.
    Glasses are known which have a camera which is directed to an eye of the relevant spectacle wearer. By recording an eye video, the coordinates of the pupil and the viewing direction of the eye can be determined with such spectacles. Together with a so-called. View field video, which is created by a view camera in the viewing direction of a user further arranged field of view camera can be determined with such glasses on which point the user looks.
    A disadvantage of such known glasses is that the arrangement of the cameras can lead to an impairment of the behavior of the user himself. Such glasses are usually designed as a measuring device or research utensil and as such also clearly visible. Although test persons accept the spectacles concerned in areas that are separated from the public, such as a vehicle or a special test environment, these lead to an influence on the behavior of the test person and the patient, especially in environments in which the test subject does not have to act as a shield from surrounding people People in the environment. The feedback that a person receives from the reactions of his or her environment to one's own appearance often has a direct influence on the behavior of the person in question. This influence leads beyond the unconscious and therefore escapes direct control by the person concerned. The public wearing of a clearly recognizable and conspicuous apparatus on the head results in reactions of the environment, which in turn can have a direct influence on the behavior, including the gaze behavior of the subject in question. In this difficult test situations, this can lead to a high influence on the test result by the means of the test itself.
    Such known glasses take the eye of the subject from the bottom front. It has been shown that this camera position can have negative effects on the accuracy and quality of the measurement results obtained.
    These known spectacles also have the disadvantage that the protruding parts, such as cameras and cables, the possible uses of such well-known 2/29 • • • • 34394 / lh • ··· · · · · · · · · · · · · · · · 7 · · · ·
    Restrict spectacles to research assignments. For example, such eyewear in the vicinity of rapidly rotating machinery poses a significant risk of accident. Garments or body-worn equipment with loops or protruding parts are prohibited in many work environments for safety reasons.
    The object of the invention is therefore to provide a pair of spectacles of the type mentioned, with which the disadvantages mentioned can be avoided, which has a high accuracy in the detection of the pupils of a subject, with which the influence of the glasses are reduced even to the gaze behavior of the subject can, and which is replaceable in accident-prone environments.
    This is achieved by the features of claim 1 according to the invention.
    As a result, a detection of the line of sight of both eyes of a test person can take place, whereby this remains largely uninfluenced by the test setup. As a result, a better detection of the viewing direction of a subject can be done than when only one eye is taken. Due to the so-called binocular measurement, on the one hand the measurement in the middle region, therefore in one region of the eye position in the two eyes, can be achieved with the eye detection camera assigned to the respective eye, with unprecedented accuracy, and at the same time with so-called lateral position of the eyes, therefore In situations in which the test person looks, as it were, "out of the corner of his eye", only one measurement is taken at all. Due to the detection of both eyes out of the area of the nose pad or nose part frame, at least one of the eyes can be picked up at any time from an angle that is advantageous for the measurement accuracy, as a result of which good measurement results can be achieved.
    By arranging the eye-detection cameras in the nose sub-frame, influencing the pupil detection by eyelashes surrounding the eye can be reduced. Furthermore, this can reduce the influence of disturbing reflections on the pupils. Also, by detecting both eyes of a subject more accurately than previously the blink of the subject can be detected. 3/29 ········································································ «
    34394 / lh
    By detecting both pupils of a subject, the focus distance can also be determined, hence the distance to which the subject in question focuses. In this case, by comparing the measurement of the measured values determined for the individual eyes, it is also possible to detect eye malpositions quickly and easily. For this purpose, it may be necessary to individually calibrate the respective glasses on the eyes of the subject. Furthermore, measurements can be carried out on individual eyes with the objective glasses, for example, in which the other eye is covered.
    By illuminating the eyes with an infrared radiation source in a darkened environment, the objective glasses can also be used to analyze the retina or other parts of the auger.
    By arranging the eye detection cameras in the nose subframes, spectacles can be provided which have a high measuring accuracy with respect to the viewing direction of the eyes of a user, and which can be carried inconspicuously, so that no influence on the behavior of the user due to wearing the spectacles is given. As a result, significantly improved results can be achieved, especially in the case of public use of the spectacles, since both the measuring accuracy is increased, and the measuring apparatus can no longer be perceived by the environment and consequently also leads to no negative influences on the test person. By integrating the eye detection cameras into the nose subframes, the goggles have no protruding parts and are therefore suitable to be worn as safety glasses. As a result, the eye movements of a worker or a person using a machine can not only be monitored and evaluated, but used directly to control the machine. In addition, this can be used to monitor the ability to guide a machine, as it can be concluded on the basis of the eye movements on the physical and mental state of the person concerned, such as whether he is overtired or is under the influence of psychotropic substances.
    The invention further relates to a method for the determination of pupillary centers of both eyes of a human being according to the preamble of claim 11. 4/29 ····· ··· ········ · ···· ···
    • · · · · · ····· · «I 34394 / Ih
    The object of the invention is therefore to provide a method of the aforementioned type, with which the disadvantages mentioned above can be avoided, with which the viewing direction, the setting distance and the blink of an eye of a human can be detected with high accuracy.
    This is achieved by the features of claim 11 according to the invention.
    As a result, a detection of the line of sight of both eyes of a person can be detected. As a result, the viewing direction of a person can be determined with high accuracy. As a result, additionally or alternatively, the focus distance or the focusing distance of the eyes of the relevant person can be determined. This makes it possible to detect a blink of the eye as a spontaneous blink of the eye, which can safely distinguish between different states of the person concerned, for example between a state of high concentration and a state of tiredness.
    The subclaims relate to further advantageous embodiments of the invention.
    It is hereby expressly referred to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.
    The invention will be further described with reference to the accompanying drawings, in which a merely preferred embodiment is shown by way of example. Showing:
    Fig. 1 shows a preferred embodiment of an objective glasses in elevation;
    FIG. 2 shows the spectacles according to FIG. 1 in plan view; FIG.
    Fig. 3, the glasses of Figure 1 in side elevation.
    FIG. 4 shows the spectacles according to FIG. 1 in a first axonometric representation; FIG.
    FIG. 5 shows the spectacles according to FIG. 1 in a second axonometric view; FIG.
    FIG. 6 shows the spectacles according to FIG. 1 in a third axonometric view; FIG. 5/29 • · 34394 / lh
    Fig. 7 is a block diagram of a preferred embodiment of a subject glasses
    8 shows a detail of a pair of spectacles according to FIG. 1 in plan view;
    9 shows a detail of a pair of spectacles according to FIG. 1 in side elevation; FIG. and
    Fig. 10 shows a detail of a pair of spectacles according to FIG. 1 in a fourth axonometric representation.
    1 to 10 show a pair of spectacles 1 with a frame 2, wherein the frame 2 has at least one disc receiving opening 3 for a disc, and wherein the frame 2 has a right nose sub-frame 5 and a left nose sub-frame 6, wherein in the right nose sub-frame. 5 a right eye detection camera 7 is disposed, and that a left eye detection camera 8 is disposed in the left nose part frame 6.
    As a result, a detection of the viewing direction of both eyes 24 of a test person can take place, whereby this remains largely uninfluenced by the test setup. As a result, the measurement in the central region, therefore in an area of the eye position in the two eyes 24, can be detected by the binocular measurement Eye detection camera 7, 8 are visible, done with unprecedented accuracy, and at the same time in so-called. Side position of the eyes 24, therefore in situations in which the subject so to speak "out of the corners of the eyes". looks, in the first place a measurement done. As a result of the detection of both eyes 24 out of the area of the nose pad or nose part frames 5, 6, at least one of the eyes 24 can be picked up at any time from an angle which is advantageous for the measurement accuracy, as a result of which good measurement results can be achieved.
    The arrangement of the eye detection cameras 7, 8 in the nose sub-frame 5, 6 can influence the pupil detection by, the eye 24 surrounding eyelashes are reduced. Furthermore, this can reduce the influence of disturbing reflections on the pupils. Also, the detection of both eyes 24 of a test person can more accurately than previously the eyelid impact of the test subject. · · · · · · · · · · · · · · · · · · T # .¾% 34394 / lh.
    By detecting both pupils of a subject, the focus distance can also be determined, hence the distance to which the subject in question focuses. In this case, by comparing the measurement of the measured values determined for the individual eyes 24, it is also possible to detect eye malpositions quickly and easily. For this purpose, it may be necessary to individually calibrate the respective spectacles on the eyes 24 of the subject. Furthermore, with the objective spectacles 1 measurements on individual eyes 24 can be carried out, for example by covering the respective other eye 24.
    By illuminating the eyes 24 with an infrared radiation source in a darkened environment can also be done with the subject glasses 1, an analysis of the retina.
    By the arrangement of the eye detection cameras 7, 8 in the nose sub-frame 5, 6, a pair of glasses 1 can be provided, which has a high measurement accuracy with respect to the viewing direction of the eyes 24 of a user, and which can be carried inconspicuously, so that no influence on the behavior of the user due the wearing of the glasses 1 is given. As a result, significantly improved results can be achieved, particularly in the case of public use of the spectacles 1, since both the measuring accuracy is increased and the measuring apparatus can no longer be perceived by the environment and consequently also leads to no negative influences on the test person. By integrating the eye detection cameras 7, 8 in the nose sub-frame 5, 6, the glasses 1 has no protruding parts, and is therefore suitable to be worn as a work safety glasses or goggles. As a result, the eye movements of a worker or of a person operating a machine can not only be monitored and evaluated, but used directly to control the machine. In addition, this can be used to monitor the ability to drive a machine, as it can be concluded from the eye movements on the physical and psychological state of the person concerned, such as whether he is overtired or is under the influence of psychotropic substances.
    The information "right" or "left" refers to the intended carrying method of 7/29 .7 *. 34394 / lh
    Glasses 1 related by a human.
    The subject invention relates to glasses 1 for wearing on the head of a human. The glasses 1 has a frame 2, which may also be referred to as a middle part. Furthermore, the glasses 1 on a first bracket 15 and a second bracket 16, which are connected to the frame 2. The two brackets 15, 16 are preferably integrally formed on the central part, for example, to form a flexible portion, which allows bending of the bracket 15, 16. It can also be provided that the two brackets 15, 16 are connected by means of a hinge to the central part. The brackets 15, 16 are provided, as is known, to hold the glasses 1 on the head of the wearer, such as these are designed to engage behind the ears of the person wearing the glasses 1.
    The frame 2 and the two brackets 15, 16 are preferably formed comprising a plastic.
    The frame 2 has at least one disc receiving opening 3, in which preferably a disc is arranged, which disc colloquially and regardless of their material is also referred to as glass or spectacle lens. According to the illustrated preferred embodiment, it is provided that the spectacles 1 has two disc receiving openings 3, and that in each case a disc is arranged in the two disc receiving openings 3. The discs may also be optical and / or tinted discs. Through the subject glasses 1 also such look analyzes in carriers of optical glasses are possible.
    The frame 2 has, in a conventional manner, a U-shaped Nasenaufnahmeaussparung, which is provided for the arrangement of the glasses 1 on the nose of a human. The areas of the frame 2 that laterally edge this recess are called the right-hand nose-piece frame 5 and the left-hand nose-piece frame 6. The right and left nasal sub-frames 5, 6 are preferably areas of the frame 2 surrounding the disc-receiving openings 3, which frame directly and / or in one piece pass into the further regions of the frame 2. The nose subframes 5, 6 can be 8/29 • · · · · · · · · · * * * also referred to as nose piece frame 5, 6.
    It can also be provided that the frame 2 does not surround the at least one disc receiving opening 3 on all sides, and the disc receiving opening 3 is therefore designed as an open-edged recess.
    The surfaces intended to be in direct contact with the nose of the spectacle-wearer are referred to as the nasal support surface 20. It can be provided that these nose pads 20 are formed as integral parts of the frame 2. It is preferably provided that the spectacles 1 have at least one nosepiece receptacle 11 for receiving at least one nosepiece 12.
    The nose bridge receptacle 11 is arranged in or on the U-shaped Nasenaufnahmeaussparung of the frame 2. It is preferably provided that the Nasenstegaufnahme 11 has a portion of a snap-in connection, and that the provided for arrangement in the Nasenstegaufnahme 11 nose ridges 12 have the corresponding other part of such a locking connection.
    It is preferably provided that the spectacles, as shown in the figures, only a single nose bridge recording 11, in which a one-piece U-shaped nose bridge 12 is arranged, which is also referred to as saddle bridge. However, it can also be provided that a nose bridge receptacle 11 is arranged on each of the two nose part frames 5, 6, each for receiving a nose bridge 12. The nose bridge receptacle 11 can be used differently shaped nose bridges 12 in the glasses 1, which thereby different Nose geometries can be adjusted, whereby the glasses 1 can be adapted by simple means to different people, in particular, can also be provided to adapt appropriate nose pads 12 targeted to individual individuals. It can be provided to provide the spectacles 1 in a set or system together with differently shaped nosepieces 12 for the predefinable adaptation of the spectacles 1 to different persons by replacement of the nosepieces 12. Preferably, the at least one nosepiece 12 comprising silicone and / or an elastomer. 9/29 · · · · · · · # ································································ 34394 / lh
    It is provided that a right eye detection camera 7 is disposed in the right nose part frame 5, and that a left eye detection camera 8 is disposed in the left nose part frame 6. The two eye detection cameras 7, 8 are arranged in the parts of the frame 2, which are arranged next to the Nasenaufnahmeaussparung. The two eye detection cameras 7, 8 are designed as digital cameras and have a lens. The two eye-detection cameras 7, 8 are each intended to film one eye of the person wearing the respective spectacles 1, and in each case to create an eye video consisting of individual eye images or individual images.
    A main purpose of the eye detection cameras 7, 8 is to detect the pupil of the person wearing the glasses 1. It may therefore be sufficient if the entire eye is not or can not be detected by the respective eye detection camera 7, 8, but only an area around the pupil of the respective eye. The eye detection cameras 7, 8 may also be referred to as pupil detection cameras. The eye detection cameras 7, 8 have a suitable focal length to detect the corresponding areas of the eye from the position in the nose subframe. The focal length and the detectable with a focal opening angle are dependent on the sensor size of the camera and easily selectable by the executing professional with the subject information.
    The right eye detection camera 7 is directed to a right area 9, in which, when the glasses 1 are arranged on the head of a human being, the right eye 24 of this human is at least partially arranged in a plurality of people. Accordingly, the left eye detection camera 8 is directed to a left area, in which, in a plurality of people at least partially, the left eye of this person is arranged. The position of the right portion 9 and the left portion, and thus the viewing direction of the two eye detection cameras 7, 8 are individually different. However, depending on gender and ethnicity, there are statistical frequencies with respect to the position of the eyes as well as the nose geometry, which allows the viewing direction of the two eyes to be narrowed. 10/29 «· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · e ···· * Ο ····················································································································································································
    Eyewear cameras 7, 8, at least for individual areas or countries, pretend such that the subject trained glasses for a large number of people in the area is suitable.
    According to a preferred embodiment of a pair of objective glasses, it is provided that the right-hand region 9 is between 20 mm and 40 mm, in particular between 25 mm and 35 mm, to the right of a spectacle center 10, the corresponding distance 25 is shown in FIG. 8, and between 10 mm and 25 mm apart from the right eye detection camera 7, and the left region is disposed between 20 mm and 40 mm, particularly between 25 mm and 35 mm, left of the center of the eyeglass 10 and between 10 mm and 25 mm apart from the left eye detection camera 8 , Since spectacles 1 are generally constructed symmetrically, they also have a clearly defined center. The distance from the eye detection cameras 7, 8 is to be measured in the direction of extension of the brackets 15, 16 or of the head receiving region of the spectacles 1. The given values can be used to achieve a good basic fit to the head shape in Europe and North America. Eyewear for the Asian, African, Latin American or Pacific region shall be formulated accordingly with other values, taking into account the representational data.
    FIGS. 8, 9 and 10 respectively show detailed views of the subject spectacles 1. In the relevant FIGS. 8, 9 and 10, a coordinate system is shown. This was, based on the symmetry of the respective glasses 1, chosen such that the spanned by the Y-axis and the Z-axis YZ plane on the right and left sides of the glasses respectively gegengleiche or symmetrically arranged areas intersects. On the YZ plane normal and parallel to the plane of symmetry of the glasses, the XZ plane spanned by the X-axis and the Z-axis is arranged. Normal to the YZ plane and the XZ plane is the XY plane arranged. The right eye detection camera 7 and the left eye detection camera 8 are respectively inclined with respect to these planes. In this case, it is provided according to a preferred embodiment that in each case an optical axis 23 of the two eye detection cameras 7, 8 are arranged at a first angle 21 with respect to the Y axis, and that the first angle 21 is between 30 ° and 50 °. 11/29 • «ο · · ο ο · · · · · · · · · · · · · · · 34 39 39 39 39 39 39 39 39 39 39 39 39
    Furthermore, it is provided according to the preferred embodiment that in each case an optical axis 23 of the two eye detection cameras 7, 8 are arranged at a second angle 22 relative to the X-axis, and that the second angle 22 is between 25 ° and 35 °.
    For adaptation of the spectacles 1, as already described, different nose bridges 12 can be used. Alternatively and / or additionally thereto, it can be provided that the right eye detection camera 7 and / or the left eye detection camera 8 are arranged at least about an axis, in particular about 2 axes, pivotable in the right nose part frame 5 and the left nose part frame 6, respectively. Thereby, the viewing direction of the right and left eye detection cameras 7, 8 can be adjusted. As a result, an adaptation of the glasses 1 to different head shapes is possible.
    According to a preferred embodiment of a pair of objective glasses 1, it is provided that at least one field of view camera 13 is arranged on the frame 2. The field of view camera 13 is intended to record existing field of view video consisting of individual and successive field of view images. As a result, in correlation of the images of the two eye detection cameras 7, 8 and the at least one field of view camera 13, the respective viewpoint can be entered in the field of view video. The field of view camera 13 is explicitly indicated only in FIG. 1 on the spectacles 1.
    It is preferably provided that the at least one field of view camera 13 is arranged in a region or web between the right nose part frame 5 and the left nose part frame 6. It can also be provided to arrange a larger number of field of view cameras 13 in the spectacles 1, wherein in particular one left and one right field of view camera in the frame 2 is provided in the region of the transition to the first or second bracket 15, 16.
    It is preferably provided that the spectacles 1 have a data processing unit 17 and a data interface 18, that the data processing unit 17 is connected to the right eye detection camera 7 and the left eye detection camera 8, that the glasses 1 further an energy storage 19 for powering the right eye detection camera 7 and the left 12/29 34394 / lh
    Eye detection camera 8 and the data processing unit 17 and the data interface 18 has.
    It is provided according to a particularly preferred embodiment representational glasses 1 that in the first bracket 15, the data processing unit 17 and the data interface 18 are arranged, and that in the second bracket 16 of the energy storage 19 is arranged. In this case, the first bracket 15 may be either the right or the left bracket, and vice versa. As a result, the entire recording, initial evaluation and storage of the recorded videos in or through the glasses 1 itself can be done. This can be dispensed with disturbing connections.
    Fig. 7 shows a block diagram of a correspondingly formed glasses 1, wherein the outer contours of the block diagram to symbolize the glasses 1. In the middle part or frame 2, the three cameras, the field of view camera 13, the right eye detection camera 7 and the left eye detection camera 8 are arranged.
    These are each connected to the arranged in the second bracket 16 energy storage 19, which is preferably designed as an accumulator, circuit technology, at least indirectly connected. In the first bracket 15, a data processing unit 17 is arranged, which includes a data memory. Preferably, this is designed as a combination of a microcontroller or DSP together with a RAM. The data processing unit 17 is connected to a data interface 18 by signal conductors. It can also be provided that the data interface 18 and the data processing unit 17 are formed together in hardware, for example by an ASIC or an FPGA. Preferably, the interface is designed as a wireless interface, such as the Bluetooth standard or IEEE 802.x, or as a wired interface, such as the USB standard, in which case the glasses 1 a corresponding outlet, such as Micro-USB , having. The data processing unit 17 and the data interface 18 are circuitally connected at least indirectly to the energy storage 19, and signal conductor technology with the three cameras, the field of view camera 13, the right eye detection camera 7 and the left eye detection camera. 8
    As already explained, the spectacles described herein are suitable for use.
    34394 / lh ······························································································································································ It is provided that the human right pupil is detected by the right eye detection camera 7, wherein the right eye detection camera 7 creates a right eye video consisting of successive right frames, right pupil coordinates within the right eye images of a center of gravity corresponding to the right pupil center right pupil is detected from the right eye images, wherein the human left pupil is detected by the left eye detection camera 8, wherein the left eye detection camera 8 creates a left eye video consisting of successive left frames, wherein pupil coordinates within the left eye images of a - the left pupil center corresponding center of gravity of the left pupil are determined from the left eye images, and wherein the right pupil center and / or the left pupil center is stored and / or output.
    As a result, a detection of the viewing direction of both eyes 24 of a human can be detected. As a result, the viewing direction of a person can be determined with high accuracy. As a result, additionally or alternatively, the focus distance or the focusing distance of the eyes of the relevant person can be determined. This makes it possible to detect a blink of the eye as a spontaneous blink of the eye, which can safely distinguish between different states of the person concerned, for example between a state of high concentration and a state of tiredness.
    It is preferably provided that in each case a computational lens equalization is performed to the two eye detection cameras 7, 8 and the field of view camera 13, as well as a correction of perspective distortions.
    The two eye videos and the field of view video are recorded synchronized in time, which is controlled by the data processing unit 17.
    The determination of the pupil coordinates as well as the correlation with a field of view video, as is also provided for in objective spectacles 1 or in the subject method, is described in EP 1 300 018 B1. 14/29 • · • ο Ύα • ο 34394 / lh
    In the preferred method, the exact pupil coordinates of the pupil center in the eye video are determined by an image recognition program. Here, the pupil coordinates are determined for each frame of the eye video. The determination of the pupil coordinates preferably takes place automatically with an image recognition program. For this purpose, the contrasts of the pupil to the environment are registered for each individual image of the eye video, and all points of the individual image that are darker than a set darkness level are searched for. These points fully capture and delineate a dark area, and then automatically determine the center of gravity of that dark area. Since the dark area corresponds to the pupil of the subject, the center of gravity of the dark area represents the pupil center. Preferably, the image recognition program offers adjustment variants for the corresponding contrasts and the degree of darkness, so that a particularly high level of accuracy can be achieved for all individual images. As already explained above, it is additionally possible to select points on the edge of the pupil which can be identified particularly well and reliably because of the contrast to the surroundings, and that these points are assumed to be part of an ellipse, whereupon the center of gravity or the center of an ellipse is calculated on the scope of which also the predeterminable number of points. For each individual image, the best contrast in the form of a gray value threshold can thus be ensured for different exposure conditions, which makes possible a reliable determination of the pupil coordinates overall. The gray level threshold is that value which is e.g. digitized form is between 1 and 256, and defines the percentage of black and white on a pixel. The highest achievable value corresponds to a full black, the lowest value to the white. Since the pupil is unlikely to reach the full black level during recording, a value must be defined which, at least for this image, corresponds to the pupil gray actually present. The threshold eliminates all pixels that are brighter than the defined gray value, all darker areas are used to find the center of gravity. Three parameters make it possible to optimize the threshold definition. Since the exposure conditions within a sequence often change very greatly, this threshold value definition is preferably also possible for each image individually. All settings can be 15/29 • < > ο 39 39 39 · · · · · 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 39 34 34 34 34 34 34 entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend entsprechend 34.
    Starting from the determined pupil coordinates, these can be processed differently, for example by the correlation described in EP 1 300 018 B1 with a field of view video which is produced by the field of view camera.
    It is preferably provided that the spectacles 1 is calibrated before determination of the pupil center points on the basis of a predefinable visual sequence.
    For this purpose, first of all one or more sample visual sequences of the test person are recorded on one or more specific predetermined control points. A sample look sequence is a look sequence that is recorded for calibration only and that the subject looks for given pass points. For example, a particular control point may be marked on a wall. To obtain the best possible contrast, for example, a black mark on an otherwise white surface can be selected as a control point. The control point is usually a cross or a glowing point or similar. The subject is instructed to fix this point of control, with the subject's field of vision and eye being captured by the two eye detection cameras and the field of view camera. The control points to be targeted are also preferably arranged at different defined intervals.
    According to a preferred development of the subject spectacles, it is provided that at least one light source 26, in particular an LED, is arranged on a front side of the spectacles 1, and that the light source 26 is connected to the data processing unit 17 and the energy store 19. The front side of the spectacles 1 is the wearer of the spectacles 1 side facing away. By the light bulb 26 is a simple and automatable calibration of the glasses 1 possible. The lighting means is controlled by the data processing unit 17 for this purpose.
    In this case, it is preferably provided that a reflective surface, in particular a mirror, is arranged opposite the person wearing the spectacles, or that the person in question is placed in front of a mirror, and that 16/29 • · ··· ··· · • · · · · · · · · ··· ··· 34394 / Ih
    Calibrate the glasses 1, the bulb 26 is activated. The person in question now looks at his image in the mirror and fixes the image of the light source. By specifiable changing the position of the head with constant fixation of the light source image in the mirror, the positions of the pupils with respect to the glasses 1 and the eye detection cameras 7, 8 change. Since the wavelength or color of the light bulb 26 is known, this can by the field of view camera 13th and the data processing unit 17 can be easily recognized.
    As already mentioned, it is possible with the objective glasses 1 and the method described above in its development to detect a spontaneous eyelid strike as such, in contrast to the eyelid movements, such as these are triggered by a reaching into an eye foreign body. It is provided that, furthermore, the right eyelids are detected in the successive right individual images, the left eyelids being detected in the successive left individual images, and wherein in a right individual images a right eyelid covers the right pupil center and in a single image an eye image a left eyelid obscures the left pupil center and generates and outputs and / or stores a spontaneous eyelid message. The respective right and left frames, which are listed in the stated condition, are each time substantially simultaneously recorded frames.
    For the detection of the eyelids it is provided that first the respective pupils are fully grasped. By means of an image processing program with pattern recognition, it is easily possible to recognize the pupil as such constantly moving from one image to the next and to distinguish it from a highlight. In this way, a partial covering of the respective pupil can be easily and reliably attributed to a blink.
    In a further development of the method in question for the method for detecting a spontaneous eyelid strike, it is further provided that a visual failure time between the beginning of a spontaneous eyelid strike and the end of the same spontaneous eyelid strike is measured, and that generates a warning message when a time limit is exceeded by the visual failure time and / or is issued. This may cause the physical and / or mental state of a human being to be affected * .. *: * ..: ..; 47 *. * * * * 34394 / lh are easily monitored. In this way, an objective pair of glasses 1, in cooperation with a machine, can monitor whether the person using the machine is paying attention to what is considered necessary for this task. For example, the glasses 1 can be evaluated on the basis of the eyelid activities of the operator in question, if he is overtired, and a safe further operation of the machine is endangered. The glasses 1 can then for example give a warning, turn off the machine in question or trigger other switching operations.
    In a further development of the method for determining the pupillary centers of both eyes of a human, it is provided further to determine the focus distance of a person, wherein from the pupil coordinates in the frames of the field of view video eye distance is determined, the right pupil coordinates is assigned a right angle, the left eye pupil coordinates is assigned a left viewing angle, and from the eye distance, the right angle and the left angle, the focus distance is determined, and preferably stored and / or output. In particular, switching pulses or switching commands can be generated and output.
    In this case, the eye distance and the respective viewing angles of the two eyes are determined to determine the focus distance. The interpupillary distance forms the basis of a fictitious triangle, with the viewing angles of the two eyes representing the angles which the two sides occupy towards the base. From this, the height of the triangle in question can be determined simply as the focus distance or the eye setting distance, which makes it possible to determine even more precisely the point at which a person actually looks.
    By individual measurements on the two eyes of a subject also misalignments of the eyes can be easily and safely detected, it may be necessary to calibrate the eye detection cameras 7, 8 respectively for the two eyes separately, such as in which an eye is covered.
    According to an advantageous development of the invention, provision may be made for the determined focus distance to be used in order to be able to be detected in the 18/29 · · · # · t «· · · · · ·« ·· · f ··· ··· Λ8 *. * * .. * 34394 / lh
    To set or control lens receiving openings 3 arranged glasses or lenses with variable or predeterminable variable geometry. It is preferably provided that the at least one lens is connected to the data processing unit 17. In order to set the relevant geometric parameters on the respective lens, it is necessary for the memory associated with the data processing unit 17 to be stored in each case at specific focal distances or distance intervals. The respective parameters can contain several variables for each focus distance. To adjust the geometry of the respective lenses, it is preferably provided that at least one value assigned to the determined focus distance is taken from the data memory for geometrically determining the lens with a predeterminable variable geometry, and that the geometry of the lens is adjusted on the basis of the value. As a result, a pair of glasses 1 can be created, which can certainly provide relief even in the case of complicated visual deficiencies.
    In addition, anomalies preceding the pupil and / or iris can be recognized from the images of the two eyes.
    At the same time, the navigational structures or patterns of the eyes can be recorded in connection with predeterminable examination procedures. In addition, these can be analyzed and compared so that real eye medical recordings are possible.
    Claims: 19/29
    权利要求:
    Claims (18)
    [1]


    GIBLER & POTH Dl DR. FERDINAND GIBLER DR DR. WOLFGANG POTH PATENT CLAIMS PATENT CLAIMS 1. Glasses (1) having a frame (2), said frame (2) having at least one disc receiving aperture (3). for a disc, and wherein the frame (2) comprises a right nose sub frame (5) and a left nose sub frame (6), characterized in that a right eye detecting camera (7) is disposed in the right nose sub frame (5), and in that the left nose subframe (6) is a left eye detection camera (8) is arranged.
    [2]
    2. spectacles (1) according to claim 1, characterized in that the right eye detection camera (7) is directed to a right area (9), which right area (9) between 20 mm and 40 mm, in particular between 25 mm and 35 mm to the right of a spectacle center (10) and between 10 mm and 20 mm apart from the right eye detection camera (7), and in that the left eye detection camera (8) is directed to a left area, which left area is between 20 mm and 40 mm, in particular between 25 mm and 35 mm, to the left of the center of the eyeglass (10) and between 10 mm and 20 mm apart from the left eye detection camera (8).
    [3]
    3. Spectacles (1) according to claim 1 or 2, characterized in that the right eye detection camera (7) and / or the left eye detection camera (8) at least about an axis, in particular about 2 axes, pivotable in the right nose frame (5) or The left nose frame (6) are arranged.
    [4]
    4. Spectacles (1) according to one of claims 1 to 3, characterized in that 20/29 ··· * · · · · · · · ··· · φ φφφ φφφ 34394 / Ih • · * φφ * - · in that the spectacles (1) have at least one nose bridge receptacle (11) for receiving at least one nose bridge (12) formed in particular as a saddle bridge ).
    [5]
    5. spectacles (1) according to one of claims 1 to 4, characterized in that on the frame (2) at least one field of view camera (13) is arranged.
    [6]
    6. Spectacles (1) according to claim 5, characterized in that the at least one field of view camera (13) is arranged in a region between the right nose part frame (5) and the left nose part frame (6).
    [7]
    7. spectacles (1) according to one of claims 1 to 6, characterized in that the glasses (1) comprises a data processing unit (17) and a data interface (18) that the data processing unit (17) with the right eye detection camera (7) and the left eye detection camera (8) is connected, that the glasses (1) further comprises an energy store (19) for powering the right eye detection camera (7) and the left eye detection camera (8) and the data processing unit (17) and the data interface (18) wherein preferably the data processing unit (17) and the data interface (18) in a, with the frame (2) connected first bracket (15) are arranged, and wherein preferably the energy storage (19) in one, with the frame (2) connected second Bracket (16) is arranged.
    [8]
    8. spectacles (1) according to claim 7, characterized in that on a front side of the glasses (1) at least one light source (26), in particular an LED, is arranged, and that the light source (26) with the data processing unit (17) and the energy storage (19) is connected.
    [9]
    9. spectacles (1) according to claim 7 or 8, characterized in that in the at least one disc receiving opening (3) a lens is arranged with a predeterminable variable geometry, and that the lens with the data processing unit (17) is connected.
    [10]
    10. System consisting of a pair of spectacles (1) according to any one of claims 4 to 9, and a predetermined number of differently shaped nosepieces (12) for the predefinable adaptation of the glasses (1) to different persons by replacing the nosepieces (12). 21/29

    • · 34394 / lh
    [11]
    11. A method for determining pupil centers of both eyes of a human, wherein the human wearing a pair of spectacles (1) according to one of claims 1 to 9, wherein the right pupil of the human is detected by the right eye detection camera (7), wherein the right eye detection camera ( 7) creates a right eye video consisting of successive right frames, wherein right pupil coordinates of a center of gravity of the right pupil corresponding to the right pupil center are obtained from the right frames, whereby the left pupil of the human is detected by the left eye detection camera (8); wherein the left eye detection camera (8) creates a left eye video consisting of successive left eye images, whereby pupil coordinates of a left pupil center of gravity corresponding to the left pupil center are obtained from the left eye images, and the right pupil center and / or li nke pupil center is stored and / or output.
    [12]
    12. The method according to claim 11, characterized in that the spectacles (1) is calibrated prior to determining the pupil center points on the basis of a predefinable viewing sequence.
    [13]
    13. The method according to claim 11 or 12, characterized in that opposite to the people wearing the glasses, a reflective surface is arranged, that for calibrating the glasses (1), on a front side of the glasses (26) arranged illuminant (26) activated is that the human views the image of the light source on the reflective surface, and thereby fixes the image of the bulb, his head in predetermined positions brings.
    [14]
    14. The method according to claim 11, 12 or 13, characterized in that for determining the pupil coordinates for each frame of the eye video with an image recognition program automatically 22/29 • · · · · · · · · · · · · · · · # 34394 / Ih • the contrasts of the pupil to the surroundings are registered, all points of the individual image that are darker than a set degree of darkness are searched, - with these points a dark area corresponding to the pupil is fully captured and delimited and the center of gravity of the dark area corresponding to the pupil center with the pupil coordinates is determined.
    [15]
    15. A method for detecting a spontaneous eyelid strike of a human, wherein the pupillary centers of both eyes of the human according to a method are determined according to one of claims 11 to 14, wherein in the successive right eye images, the right eyelids are detected, wherein in the successive left Eyemarks, the left eyelids are detected, and wherein in a right eye image, a right eyelid obscures the right pupil center and in a left eye image, a left eyelid obscuring the left pupil center a spontaneous eyelid message is generated and output and / or stored.
    [16]
    16. The method according to claim 15, characterized in that a visual failure time between the beginning of a spontaneous eyelid strike and the end of the same spontaneous eyelid impact is measured, and that when a limit time is exceeded by the visual failure time a warning message is generated and / or output.
    [17]
    17. A method for determining a focus distance of a human, wherein the pupillary centers of both eyes of the human according to a method are determined according to one of claims 11 to 14, wherein from the pupil coordinates an eye relief is determined, wherein the right pupil coordinates are assigned a right angle, wherein the left pupil coordinates are assigned a left viewing angle, and the focus distance is determined from the eye relief, the right viewing angle and the left viewing angle, and preferably stored and / or, in particular 23/29

    34394 / lh * - .. 23 -.- as switching pulse.
    [18]
    18. The method according to claim 17, characterized in that a data memory of a data processing unit is at least one of the determined focus distance assigned, value for the geometric determination of a arranged in the disc receiving opening lens with predeterminable variable geometry is removed, and that the geometry of the lens adjusted based on the value becomes. Gibleif & Poth Patentanwälte OG (Dr. F. Gibler or Dr. W. Poth) 24/29
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    同族专利:
    公开号 | 公开日
    IL244230D0|2016-04-21|
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    AT513987B1|2014-09-15|
    AU2014308570A1|2016-03-24|
    CN105579884B|2019-12-17|
    US20160206196A1|2016-07-21|
    EP3036580A1|2016-06-29|
    CA2959078C|2017-10-10|
    CA2959078A1|2015-02-26|
    WO2015024031A1|2015-02-26|
    AU2014308570B2|2017-02-02|
    SG11201601286SA|2016-03-30|
    US9668648B2|2017-06-06|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA657/2013A|AT513987B1|2013-08-23|2013-08-23|Spectacles and methods for determining pupil centers of both eyes of a human|ATA657/2013A| AT513987B1|2013-08-23|2013-08-23|Spectacles and methods for determining pupil centers of both eyes of a human|
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