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Stereo vision detection system based on adaptive sine streak projection

A sine fringe and detection system technology, which is applied to measurement devices, instruments, and optical devices, etc., to achieve the effect of improving system identification accuracy, high measurement accuracy, and strong adaptability

Inactive Publication Date: 2006-04-12
BEIHANG UNIV
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Problems solved by technology

[0007] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a method of precisely changing the phase and width of the fringe by changing the frequency and phase of the signal applied to the fringe projection device without changing the structural parameters, and increasing the The stereoscopic vision detection system based on adaptive sinusoidal fringe projection for space application reliability, the system expands the scope of application of the 3D visual target recognition system, has strong adaptability, improves the accuracy of system recognition, and solves the detection of workpieces with complex surfaces identify problem

Method used

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  • Stereo vision detection system based on adaptive sine streak projection
  • Stereo vision detection system based on adaptive sine streak projection
  • Stereo vision detection system based on adaptive sine streak projection

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Embodiment Construction

[0044] like figure 1 , figure 2 As shown, the present invention is composed of a computer system 1, a five-dimensional scanning frame 2, a sinusoidal fringe projection device 3 based on an acousto-optic deflector, an electrical part 4, a visual sensor 5 based on a visual principle, and an image acquisition part 6, wherein the computer system 1 As the center of the entire detection, output control signals to the electrical system 4 to control the movement of the five-dimensional scanning frame 2, and output control signals to control the phase and frequency of the sinusoidal fringes projected by the adaptive sinusoidal fringe projection device 3 based on the acousto-optic deflector, In addition, the phase image data obtained by the visual sensor 5 based on the visual principle is also collected, and the phase image data collected is subjected to phase resolution processing to obtain a phase map with three-dimensional information of the object; the five-dimensional scanning fra...

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Abstract

A stereoscopic visional detecting system based on the adaptive sine fringe projection is composed of computer system, 5D scanning frame, sine fringe projector based on acousto-optic deflector, electric unit, visional sensor and image acquisition unit. When multiple sine rasters are projected onto surface of object, a series of images with different phases is captured by image sensor, then sent to image acquisition unit, and finally processed by computer to obtain the phase diagram about the 3D information of object.

Description

technical field [0001] The invention relates to a stereo vision detection system based on adaptive sinusoidal fringe projection. Background technique [0002] Since the fast real-time 3D stereo vision detector can detect and locate the shape and distance of unknown areas and targets faster, more accurately and more automatically, so that the machine vision system has stronger functions, so in automatic target recognition, guidance In terms of positioning and positioning, it has attracted widespread attention at home and abroad, and has been widely used in product quality inspection, reverse engineering, and autonomous automatic space docking between spacecraft. [0003] The outstanding advantage of stereo vision is that it does not have high requirements for the measurement environment; it only needs to calibrate the camera, so it has high calibration accuracy. Stereo matching is the key to ensure the accuracy of stereo vision, and the existing matching methods such as the ...

Claims

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Application Information

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IPC IPC(8): G01B11/25G01B11/00
Inventor 赵慧洁吉相殷雪冰姜宏志屈玉福
Owner BEIHANG UNIV
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