NDLI: Backward view synthesis prediction for 3D-HEVC

Content Provider	IEEE Xplore Digital Library
Author	Dong Tian Feng Zou Vetro, A.
Copyright Year	2013
Description	Author affiliation: Mitsubishi Electr. Res. Labs., Cambridge, MA, USA (Dong Tian; Feng Zou; Vetro, A.)
Abstract	View synthesis prediction provides an effective way to reduce inter-view redundancy of multiview video in addition to conventional disparity compensated prediction. Traditional forward warping techniques incur high complexity since an entire picture is typically warped from one viewpoint to another. To reduce this complexity, block-based backward warping is considered as an alternative solution. One difficulty with this approach is that it requires depth information of the current block prior to its encoding. To solve this problem, a novel method is proposed to derive the depth information from neighboring blocks with high accuracy. With the proposed approach, backward warping is enabled using depth information derived from either neighboring spatial (inter-view) compensated blocks or temporal compensated blocks. As a generalization, the proposed backward warping scheme is not only applied at the pixel level, but at the sub-block level as well. Simulation results demonstrate that the proposed scheme achieves an average bitrate savings of 1.2% for coded video vs coded video bitrate, 1.1% for coded video vs total bitrate, and 1.0% for synthesized video vs total bitrate under common test conditions for 3D video coding using HEVC, with maximum gains of greater than 10% for dependent views.
Starting Page	1729
Ending Page	1733
File Size	225399
Page Count	5
File Format	PDF
ISBN	9781479923410
DOI	10.1109/ICIP.2013.6738356
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Backward VSP 3D Video Coding View Synthesis Prediction (VSP)
Content Type	Text
Resource Type	Article

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