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- W2068883913 abstract "This paper covers two modules of an analysis-synthesis-chain for 3D video that were optimized to support a more consistent temporal scene modeling. In a first section it addresses the disparity analysis of the scene, and in a second section the synthesis of a 3D adapted wireframe representing the visual scene surface based on the previous disparity analysis results. The assumption of parallel stereo camera axes, or the rectification of the stereo images prior to analysis, allows the application of stereopsis constraints such as uniqueness and ordering and the focus on single image scanlines for correspondence analysis. This led to the development of dynamic programming search algorithms for the ordering of the scanline matching results during the disparity estimation process, either region-based or feature-based. The approach presented in this paper expands the focus of the ordering method from the single scanline to a neighborhood region and combines this with a temporal recursion in order to include as much information as possible already in the ordering process before starting the disparity diffusion. The wireframe approximation of the visual surface of 3D video traditionally starts with a 2D network construction based on the projection of the segmented surface labels into the image plane. The 3D adaptation of this network is performed afterwards resulting in certain image regions into a degeneration of the mesh that cannot be controlled. In the second section of this paper for this reason an algorithm is suggested that performs the 3D triangulation directly in 3D space based on the 3D visual surface in order to achieve maximum regularity of the wireframe." @default.
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- W2068883913 date "1996-02-27" @default.
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- W2068883913 title "<title>Temporally coherent 3D video sequence analysis and modeling</title>" @default.
- W2068883913 doi "https://doi.org/10.1117/12.233306" @default.
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