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Title: Viewpoint switching in multiview videos using SP-frames
Authors: Lai, KK
Chan, YL 
Fu, CH
Siu, WC 
Issue Date: 2008
Source: ICIP 2008 : 2008 IEEE International Conference on Image Processing : proceedings : October 12-15, 2008, San Diego, California, U.S.A., p. 1776-1779
Abstract: The distinguishing feature of multiview video lies in the interactivity, which allows users to select their favourite viewpoint. It switches bitstream at a particular view when necessary instead of transmitting all the views. The new SP-frame in H.264 is originally developed for multiple bit-rate streaming with the support of seamless switching. The SP-frame can also be directly employed in the viewpoint switching of multiview videos. Notwithstanding the guarantee of seamless switching using SPframes, the cost is the bulky size of secondary SP-frames. This induces a significant amount of additional space or bandwidth for storage or transmission, especially for the multiview scenario. For this reason, a new motion estimation and compensation technique operating in the quantized transform (QDCT) domain is designed for coding secondary SP-frame in this paper. Our proposed work aims at keeping the secondary SP-frames as small as possible without affecting the size of primary SP-frames by incorporating QDCT-domain motion estimation and compensation in the secondary SP-frame coding. Simulation results show that the size of secondary SP-frames can be reduced remarkably in viewpoint switching.
Keywords: Multiview
Viewpoint switching
Motion estimation
Publisher: IEEE
ISBN: 978-1-4244-1764-3
DOI: 10.1109/ICIP.2008.4712120
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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