Motion and Disparity Compensated Coding for Video Camera Arrays
Markus Flierl, Aditya Mavlankar, Bernd Girod · 2006
Abstract. Video camera arrays are used to capture multi-view imagery of dynamic 3D scenes. To commu-nicate a scene to a remote location, multiple video sig-nals have to be compressed. Disparity compensation ex-ploits the correlation among the image sequences and may improve the rate-distortion eciency of the com-munication system. Motion compensation makes use of the temporal correlation within each image sequence and may also improve the rate-distortion eciency. For both cases, the accuracy of compensation determines the eciency. We study the impact on the overall rate-distortion eciency of both disparity compensation and motion compensation. Further, we discuss the benet of coding across the views given the number of temporal frames used for decorrelation. Index Terms: multi-view image sequences, motion and disparity compensated coding, video camera arrays. 1