Scene depth obtaining method based on integration image technology

A technology of scene depth and acquisition method, applied in the branch of vision measurement technology in the optical field, can solve the problems of element image disturbance, depth inversion in space, etc., to achieve convenient imaging, enhanced accuracy and reliability, and simple and compact structure. Effect

Inactive Publication Date: 2014-05-14
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

This system overcomes the problems of the integrated imaging technology proposed by Lippmann, such as the spatial de

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  • Scene depth obtaining method based on integration image technology
  • Scene depth obtaining method based on integration image technology
  • Scene depth obtaining method based on integration image technology

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Embodiment Construction

[0036] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following will be combined with specific embodiments and attached Figure 1-5 , The present invention is further explained in detail.

[0037] 1. Insert the micro lens array at the position of the imaging surface of the traditional camera, and the new imaging surface (photosensitive element) moves back to the focal plane of the micro lens array. Cylindrical grating plates can also be used instead of microlens arrays.

[0038] 2. Extract the "view" by sampling from the record to form the integrated image. Points at the same position under different microlenses can be extracted to form a "view". If the size of the entire image is 6000*4000 pixels and there are 10*10 pixels under each micro lens, 100 "views" can be extracted, and the size of each "view" is 600*400. If the columnar grating plate is used in the setting, the "view" only needs to be sampled in the horizonta...

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Abstract

The invention provides a scene depth obtaining method based on an integration image technology. The method comprises the following steps of (1) obtaining an integration image, (2) extracting a view, (3) carrying out parallax analysis and depth calculation on the view, and (4) carrying out multi-base-line matching and calculation. The method is a depth obtaining method of passive visual inspection, does not need to use a special light source and can obtain depth information under natural light. Compared with traditional binocular machine visual equipment, the system is compact and small in structure, is convenient to image, and does not need to carry out calibration and correction among different cameras. The depth of field is larger than that of a traditional camera with the same camera aperture, and under the action of auxiliary adjustment of a main lens, a better imaging effect can be achieved for a far-field scene. A multi-base-line algorithm is adopted, and the reliability and stability for obtaining the depth information can be further improved.

Description

Technical field [0001] The invention relates to a scene depth acquisition method based on integrated image technology, which belongs to the branch of vision measurement technology in the optical field. Background technique [0002] The acquisition of 3D space scene depth information has a wide range of applications in industrial measurement, security monitoring, pattern recognition and 3D display. The acquisition of non-contact scene depth information can be divided into passive ranging sensors and active ranging sensors. Active ranging sensor means that the vision system actively emits energy to the scene, and calculates depth information by receiving the reflected energy of the scene. Such as ultrasonic ranging, radar imaging, structured light source, Moire technology, holographic interferometry, etc. are all active ranging methods. Active ranging technology generally has the advantages of high measurement accuracy, strong anti-interference performance and good real-time perf...

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Application Information

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IPC IPC(8): G06T7/00
Inventor 伍春洪杨岸夫张默张怡李成前柳强尤佳杨淑华陈静
Owner UNIV OF SCI & TECH BEIJING
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