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Image Recognition And Restoration Based On Computer Vision Technology

Posted on:2012-07-31Degree:MasterType:Thesis
Country:ChinaCandidate:Q Z WangFull Text:PDF
GTID:2218330362454111Subject:Computer technology
Abstract/Summary:PDF Full Text Request
Nowadays, the traditional optical scanning system is becoming to less competent in the applications of complicated wavefront transformation due to its mechanical inertia reason. It is great value of changing a laser beam into arbitrary beams with the optical method based on the agile pointing technology.Firstly, the image is collected by the computer. Secondly, it is realized by the image extraction and the image processing. Thirdly, the processed image is transformed into pure phase information with the phase restoration technology. Finally, the bitmap including phase information is sent into liquid crystal space modulator. Thus realize the random goal multi-light beams as it looks like.In the aspect of image processing, this article adopts grey transforms primarily. The image division, the edge detection, the image restores the technology are used. The processing digital image software graphical interface is developed based on the Visual Studio.net integrated development environment.In the aspect of modulator, we use the phase-only liquid crystal space light modulator to read the phase diagram and project the spatial image.In the aspect of image retrieving algorithm, we use the GS algorithm to realize the pure phase restoration. The algorithm has the merit of accuracy and fast astringency.In engineering applications, design two used in this system to the image acquisition module, the above-mentioned theory is validated.
Keywords/Search Tags:machine vision, laser beam, image restoration, spatial light modulator
PDF Full Text Request
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