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Research on Multi-View Synthesis Method That Based on Triangulation

Author: LiBing
Tutor: SunHanXu；JiaQingXuan
School: Beijing University of Posts and Telecommunications
Course: Detection Technology and Automation
Keywords: Teleoperation Image correction Stereo matching Delaunay triangulation Affine transformation
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 21
Quote: 0
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Abstract


Telepresence teleoperation system operator can increase the perception of the on-site environment, to improve the accuracy of the operation. Naked eye stereoscopic display technology enables the observer without wearing any auxiliary equipment to observe the three-dimensional information to the real scene, is an important means to enhance telepresence teleoperation system. Currently, mainstream naked eye stereoscopic display system is the use of multi-view view with dedicated the spectrophotometric display device three-dimensional display, multiple observers from different locations at the same time observe a stereoscopic screen. Therefore, this study view synthesis method for multi-view, and laid a solid foundation to build a remote control system with the depth of immersion. The main research work are as follows: Firstly, the paper studied the basic theory of the three-dimensional imaging and image correction method. Through internal and external camera calibration parameters, image distortion and three-dimensional correction, two images to be perfectly aligned rows of pixels in the horizontal direction, and lay the foundation for the next image stereo matching. Secondly, the paper studied image matching method based on feature point extraction. For the deficiencies of the existing corner extraction algorithm, this paper proposes a MIC-Harris corner extraction algorithm, the MIC operator and the Harris operator method effective combination to improve the the corner extraction rate and quality; been extracted into the corner, the article uses adaptive image matching algorithm based on singular value decomposition binocular disparity map image, in order to achieve the two images of the stereo matching. Once again, this study view morphing method based on Delaunay triangulation. On the basis of the existing Delaunay triangulation algorithm, which convex polygon generation algorithm as well as LOP process improved to improve the efficiency of the subdivision; grid mapped the triangular network established by the split between the images, and affine transformation between the grid internal pixel fill to synthesize new viewpoint images. Finally, based on the above theory, we build a multi-viewpoint view synthesis of experimental verification platform. Field image acquisition on the platform and the synthesis of the new viewpoint view and introduced algorithm comparative analysis of the existing image synthesis algorithm in this article, so as to test the performance of the proposed algorithm. The experimental results show that the proposed multi-viewpoint view synthesis technology is able to generate high-quality new view, and has a high efficiency of image synthesis.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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