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Complete object surface-restoring 3D device based on multiple stereo digital visual heads

A technology of stereo vision and 3D restoration, applied in stereo photography, image data processing, 3D image processing, etc., can solve the problems of complex technology, low reliability, complex system, etc., and achieve simple interconnection and easy expansion , the effect of great flexibility

Inactive Publication Date: 2002-10-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

The main problems of this type of ranging system are: (1) only the surface of static rigid objects can be restored, and the surface of dynamic or deformed objects cannot be restored; (2) to obtain the complete surface data of the object, it is necessary to rotate the object or the rangefinder Rotate around the object, and finally synthesize the local surface data to obtain a complete three-dimensional image, so it usually takes tens of seconds to tens of minutes; (3) There are many precision moving parts, the technology is complicated, the cost is high, and maintenance and Inconvenient operation and low reliability
The application background of the above-mentioned systems is mainly virtual reality modeling, and their common features are: (1) adopt commercialized CCD cameras, more than a dozen high-performance microcomputers (or workstations) with large memory, and multiple image acquisition cards to collect Image, the system is complex, huge, and costly; (2) Synchronous image acquisition between multiple cameras requires special hardware equipment to complete, and the implementation method is complicated. When performing image analysis, it is necessary to first extract the time information of image acquisition

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  • Complete object surface-restoring 3D device based on multiple stereo digital visual heads
  • Complete object surface-restoring 3D device based on multiple stereo digital visual heads
  • Complete object surface-restoring 3D device based on multiple stereo digital visual heads

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Embodiment Construction

[0029] The structure of the object complete surface recovery device based on multiple digital stereo vision heads: as figure 1 As shown, 20 digital stereo vision heads [1] are distributed on each vertex of a regular 12-hedron support [2], and the digital stereo vision heads [1] are connected by 1394 cables [3] to form a network, and then through The IEEE 1394 bus controller [4] is connected to the computer [5]. Use high-strength black filaments or high-strength thin rods to form a loading platform to place the object [15] at the center of the dodecahedral support [2].

[0030] image 3 It is a block diagram of digital stereo vision head [1]. Each digital stereo vision head [1] consists of three cameras [8], A / D converter [6], frame memory [7], light source driver [14], IEEE1394 interface [9], synchronous signal interface [11] , controller [13] and so on. The controller [13] is the core of the entire digital stereo vision head [1], and controls the various parts of the digi...

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Abstract

The body complete surface three-D restoration equipment comprises several digital stereovision heads distributed on a polyhedral support, IEEE 1394 high-speed serial bus and computer; every digital stereovision head can be used to obtain stereoscopic picture pair of different sides of body, the steroscopic picture pair can be transferred into computer by means of IEEE 1394 high-speed serial bus, the computer can be used to process said sterescopic picture to obtain three-D web surface expression of every side of body, and convert the three-D web surface of every side of body into same coordinate and splice to obtain the three-D expression of complete surface of body. Said invention not only can high-accurately restore complete three-D surface of static body, but also can high-accurately restore complete three-D surface of dynamic body or deformed body.

Description

technical field [0001] The invention is a three-dimensional recovery device for the complete surface of an object based on a multi-digital stereo vision head, belongs to the technical field of machine vision, and particularly relates to the stereo vision technology for three-dimensional recovery of the complete surface of an object. Background technique [0002] The three-dimensional surface restoration methods of objects mainly include structured light scanning ranging imaging, lidar scanning ranging imaging, and stereo vision ranging imaging. For example, the ARANZ 3D imager from Applied Research Associates NZ limited in the UK, the ATOS precision optical measuring machine from GOM in Germany, the 3D laser scanners GS100 and S10 / S25 from MENSI in France, etc. The main problems of this type of ranging system are: (1) only the surface of static rigid objects can be restored, and the surface of dynamic objects or deformed objects cannot be restored; (2) to obtain the complete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B35/08G06T15/00
Inventor 贾云得王忠立刘万春朱玉文裴民恩刘佳音安路平李鸣翔
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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