• 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:
    The present invention relates to an automatic device for photogrammetric documentation of objects, which comprises the following blocks: the winch and control unit. The first picks up the hardware parts that make up the lathe; and the second is the hardware device attached to the lathe comprising, among others, the software part that controls the device. In addition, the device requires a camera, and the user can use his own camera. The advantages of the device are that it allows the user to configure and program the process of capturing images through the control unit, specifically using the digital panel, so that the capture can be configured, specifying the range of degrees that you want to advance in each rotation, in addition to communicating to the camera, through infrared, when to make each shot. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2631827A1
    申请号:ES201730543
    申请日:2017-03-31
    公开日:2017-09-05
    发明作者:Fco. Javier ESCLAPÉS JOVER；Jaime MOLINA VIDAL
    申请人:Universidad de Alicante；
    IPC主号:
    专利说明:

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    automatic device for photogrammetric documentation of
    OBJECTS
    description
    Automatic device for photogrammetric documentation of objects.
    FIELD OF THE INVENTION
    This invention is included as an auxiliary tool within the digital photogrammetry / Structure from Motion, which is a technique that allows obtaining three-dimensional models from two or more images that share a minimum percentage of overlap between them. This technique, today, is applied in many productive sectors, from engineering, to the study and conservation of cultural heritage or the creation of content for digital cinema or videogames, among many others.
    STATE OF THE PREVIOUS TECHNIQUE
    Currently, three-dimensional documentation of objects is done through different techniques and instruments. Although it is not the purpose of this document to make an exhaustive exposition of all three-dimensional documentation systems, it is possible to establish a general classification based on the following criteria:
    1. Techniques and equipment that are based on the emission of light, at different wavelengths depending on the technique used, and on the measurement and analysis of said emission, as well as the response obtained. They are, in general, equipment with a high cost, between € 4,000 and € 100,000, among which we can include the following:
    to. Flight time scanners.
    b. Optical triangulation scanners.
    C. Phase difference scanners.
    d. Structured white light scanners.
    2. Techniques and equipment that are based on the capture of information on objects on which a source of lighting (natural or artificial) affects. In practice, they are based on photographic capture and the treatment and analysis of the relationships between the different images obtained through the use of restitutors or specific software. The following can be cited:
    to. Analog photogrammetry
    b. Analog photogrammetry
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    C. Digital photogrammetry / Structure from Motion
    Currently, among all the aforementioned systems, digital photogrammetry / Structure from Motion has become the most widely used and widespread technique, mainly due to its low cost and versatility (it can be used on any type of object or structure).
    Given the increasing expansion of digital photogrammetry / Structure from Motion and its use in practically all productive sectors (architecture, conservation and restoration, archeology, engineering, digital cinema, videogames, expertise or criminalistics, among many others) it is necessary to analyze which They are the work phases that can be optimized and automated. Precisely one of them is the documentation of objects and parts, which is currently done in a completely manual way. To do this, to obtain the three-dimensional model of an object, the technician must manipulate it, making it rotate on itself to obtain information of its entire volume, or it must rotate it on the object to obtain the same result; its presence is, therefore, necessary during the whole process, which makes it impossible to apply the technique to large volumes of objects.
    In this sense, the use of hardware that facilitates the automation of this process (photographic capture), can be useful in different sectors, among which:
    1. 3D documentation of archaeological pieces for museums and companies and institutions in the sector.
    2. Documentation of scale models for the construction of ephemeral objects and / or related to popular events: faults or fires (among others).
    3. Prototyping and fabrication of parts in industrial engineering, jewelry or footwear.
    4. Cinema and digital art: 3D documentation of scale models for digital integration in movie theaters or videogames.
    For all the above in the previous section, it is necessary to develop an auxiliary device for the 3D documentation of objects; Automatic and reduced cost.
    EXPLANATION OF THE INVENTION
    The development of this device arises from the need to optimize, automating it, the photographic capture phase, within the general method of obtaining three-dimensional models through the described technique known as digital photogrammetry /
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    Structure from Motion
    It is a device capable of automating the process of photographic capture in two phases:
    1. Configuration and programming of the capture project through a digital control panel that synchronizes the lathe with the camera.
    2. Execution of the capture project: automatic rotation of the piece and photographic capture based on the previous configuration.
    The device allows you to rotate an object vertically and automatically in order to capture images suitable for further processing with photogrammetry software and the final obtaining of the corresponding 3D model. Therefore, this device is designed to optimize the photo capture phase, automating it.
    Therefore, the present invention relates to an automatic device for photogrammetric documentation of objects, comprising two main blocks: lathe and control unit. The first collects the pieces that make up the lathe; and the second is the hardware device attached to the lathe which comprises, among others, the software part that controls the device.
    In addition, the device requires a camera. It should be noted that the user can use his own camera, which allows the user to use the capture device with which he is familiar, speeding up the work and making acquisition and learning unnecessary in the handling of another sensor.
    The device allows the user to configure and program the image capture process through the control unit, specifically using a digital panel, so that the capture can be configured, specifying the range of degrees that you want to advance in each rotation, In addition to communicating to the camera, through infrared, when making each shot.
    Therefore, the present invention relates to an automatic device for photogrammetric documentation of objects comprising the lathe and the control unit adhered to the lathe, so that the device is characterized by comprising the following elements:
    • Plate
    • Swivel base
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    • Main structure with the control unit attached
    • Support structure
    Where the main structure is a piece that comprises in its upper part a rail and inside, a rotation system to move the pieces; and that the control unit that allows the configuration of the project by the user has been attached, automating the rotation and photographic capture of the object.
    In a particular embodiment, the rotating base is circular and comprises wheels in series that allow the rotation of the object.
    In a particular embodiment, the rest of the pieces are rectangular shaped objects.
    In a particular embodiment, the rotation system comprises a motor, a motor rotation axis and the connections with the other components.
    In a particular embodiment, the control unit, which allows the automation of the rotation of the object by capturing a complete set of images thereof, comprises the following elements:
    • Digital panel comprising:
    o LCD display o Push buttons
    • Electronic circuit
    • Connections
    Where the software that controls the entire device is embedded.
    In practical terms, the working scheme of this device for obtaining images of an object to build the corresponding 3D model would be as follows:
    1. Placement of the object on the lathe plate.
    2. Placement and configuration of camera parameters in the desired position (preferably on a tripod).
    3. Configuration, from the digital panel of the lathe control unit, of the number of images to be taken of the object. If you want to take a total of 8 photographs, the lathe rotates on its own axis and, at 45 ° intervals, stops and automatically orders the camera to shoot.
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    4. Obtaining a complete set of photographic images of the object, suitable for processing with digital photogrammetry software / Structure from Motion.
    Its cost, reduced compared to other automated capture systems, helps to consolidate digital photogrammetry / Structure from Motion as the method most used when obtaining three-dimensional models of objects and as an effective alternative to 3D scanning systems, whose costs They are higher.
    To complete the description that is going to be carried out below and in order to help a better understanding of the features of the invention, the present descriptive report of a set of views is accompanied, based on whose figures the innovations and advantages will be more easily understood of the devices object of the invention.
    BRIEF DESCRIPTION OF THE FIGURES
    Figure 1.- Exploded perspective view of the automatic photogrammetric documentation device, where the different parts of the lathe and the control unit are distinguished.
    Figure 2.- Side view of the device.
    Figure 3.- Plan view of the device, on the upper face of the lathe.
    DETAILED EXHIBITION OF MODES OF EMBODIMENT
    As previously mentioned, the automatic photogrammetric documentation device comprises two main blocks, the lathe and the control unit.
    The lathe comprises rectangular objects, except for the rotating base that is circular, assembled together forming an octagonal shaped device on which the object to be photographed is located. The elements of the lathe are:
    • The removable and interchangeable plate 1 where the object to be photographed is located.
    • Rotating base 2 with a circular shape on which the plate 1 rests. This rotating base 2 has wheels 4 located in series and is connected from the underside to the axis of rotation of the motor 3.
    • Main structure 6 on which the rotating base 2 rests. This main structure 6 comprises a rail 5 located at the top on which the wheels 4 move and a rotation system formed by: a motor, a rotation axis of the 3 engine and connections with the other components. In the center of the structure
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    Main 6 is a hole 7 that allows the rotation axis of the motor 3 to exit, to connect to the rotating base 2. In this way, the rotation system allows moving heavy objects with a low power motor.
    • Support structure 13, base on which the entire system rests.
    Attached to the lathe, is the control unit 9, which comprises the following elements:
    • Digital panel comprising:
    o LCD Display 10. o Three buttons 11.
    • Electronic circuit 12.
    • And the corresponding connections.
    The LCD display 10 and the buttons 11 are located in the upper part of the control unit 9, and can be manipulated from the outside. Inside is the electronic circuit 12 and the connections with the rest of the system components. In addition, the software that controls the entire system is embedded in the control unit 9.
    权利要求:
    Claims (5)
    [1]
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    1. Automatic device for photogrammetric documentation of objects comprising the lathe and the control unit attached to the lathe, so that the device is characterized by comprising the following elements:
    • Plate
    • Swivel base
    • Main structure with the control unit attached
    • Support structure
    Where the main structure is a piece that comprises in its upper part a rail and inside, a rotation system to move the pieces; and that has the control unit attached that allows the configuration of the project by the user, automating the rotation and photographic capture of the object.
    [2]
    2. Automatic device for photogrammetric documentation of objects according to claim 1, wherein the rotating base is circular and comprises wheels in series that allow the rotation of the object.
    [3]
    3. Automatic device for photogrammetric documentation of objects according to claim 1, wherein the rest of the pieces are rectangular shaped objects.
    [4]
    4. Automatic device for photogrammetric documentation of objects according to claim 1, wherein the rotation system comprises a motor, a motor rotation axis and the connections with the other components.
    [5]
    5. Automatic device for photogrammetric documentation of objects according to claim 1, wherein the control unit, which allows the automation of the rotation of the object capturing a complete set of images thereof, comprises the following elements:
    • Digital panel comprising:
    o LCD display o Push buttons
    • Electronic circuit
    • Connections
    Where the software that controls the entire device is embedded.
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    同族专利:
    公开号 | 公开日
    ES2631827B1|2018-06-15|
    引用文献:
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    EP0667111A1|1994-02-14|1995-08-16|Norman Gerkinsmeyer|Rotating display for articles, especially for loudspeaker boxes|
    CN202093302U|2011-05-06|2011-12-28|厦门元传网络科技有限公司|360-degree digital control revolving camera stand|
    CN203220165U|2013-04-23|2013-10-02|成都龙腾中远信息技术有限公司|Rotary type jewelry display stand|
    CN106263846A|2015-06-02|2017-01-04|北京中科广视科技有限公司|A kind of numerical control turntable|CN113080663A|2021-04-22|2021-07-09|山东交通学院|Intelligent furniture display stand|
    法律状态:
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    ES201730543A|ES2631827B1|2017-03-31|2017-03-31|AUTOMATIC DEVICE FOR PHOTOGRAPHIC DOCUMENTATION OF OBJECTS|ES201730543A| ES2631827B1|2017-03-31|2017-03-31|AUTOMATIC DEVICE FOR PHOTOGRAPHIC DOCUMENTATION OF OBJECTS|
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