FREE VIEWPOINT IMAGE GENERATION USING ESTIMATED DEPTH AT CAMERA VIEWPOINTS(INTERNATIONAL Workshop on Advanced Image Technology 2008)

概要

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Free-viewpoint images can be generated from multi-view images of the same scene captured from different positions, using ray-space method. Ray-Space data requires ray interpolation so as to satisfy the Plenoptic Function. Ray interpolation is realized by making disparity map, which is usually costly process, thus it is desirable that this process is skipped from rendering process to achieve real-time rendering. This paper proposes a ray interpolation method using estimated depth maps which are computed in advance. Virtual viewpoint image is generated by 3D warping technique. However, some problems which have not occurred in conventional method appeared. We resolved these problems by making view-dependent depth map first and perform post-filtering on the map. We succeeded to obtain high quality arbitrary viewpoint images from relatively small number of cameras.
社団法人電子情報通信学会の論文
2007-12-31