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Study of the View Synthesis Techonology for Multiview Video Coding

Author: PangYaoHua
Tutor: SongBin
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Multiview Video Coding Parallax Perspective synthesis Trapping
CLC: TP391.41
Type: Master's thesis
Year: 2009
Downloads: 171
Quote: 1
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Abstract


With the rapid development of wireless technology and IP networks , video communications will become one of the main business of the multimedia communication . Currently, people want to be able to freely watch any angle image and a three-dimensional image generated based on these requirements , the multi - view video coding (MVC-Multi-view Video Coding) technology . Technology for future 3DTV (3 -dimensional television ) FTV ( free view television) applications such as to lay a foundation , plays an important role and significance of its technical superiority decide is bound to be widely used in many fields . Synthetic multi-view technology as one of the key technologies of the MVC implementation , but also facing some difficulties : poor accuracy estimated based on fixed block parallax , pixel - based disparity estimation the time complexity is high, how reliable and efficient estimated parallax perspective synthesis the main research focus ; perspective synthesis obscure area , the synthetic figure a loophole point perspective synthesis technology needed to solve an important problem . Thesis MVC multi- perspective synthesis technology , first proposed an adaptive block matching parallax estimation algorithm, the algorithm selects the matching cost the smallest block as matching block disparity estimation ; then on the basis of the disparity estimation , based on two figures content space is one-to-one relationship to find the error , as almost , respectively, with the left and fill method , with a marked median filtering method and the improved median filter made ??an error of parallax correction ; Next by mutations in parallax point the neighborhood within the search for the optimum parallax mutation point made ??smooth; Finally, the thesis of the loopholes in synthetic figure made ??trap handling, which is to search out loopholes in synthetic figure , then mapped to the available loopholes point neighborhood maximum as the difference between the trap can also be selected according to the location of the point of vulnerability the left perspective diagram or right plans plus depth information trap . Experimental results show that the traditional disparity estimation , in the case of essentially the same quality of the disparity map , adaptive block matching algorithm proposed in this paper can improve the computing speed disparity estimation ; another paper given parallax correction and parallax the smoothing algorithm can improve the quality of the disparity map , and also obtained good results on synthetic graph trap .

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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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