NDLI: View synthesis prediction using adaptive depth quantization for 3D video coding

Content Provider	IEEE Xplore Digital Library
Author	Feng Zou Dong Tian Vetro, A. Ortega, A.
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA (Ortega, A.) \|\| Mitsubishi Electr. Res. Labs., Cambridge, MA, USA (Feng Zou; Dong Tian; Vetro, A.)
Abstract	Advanced multiview video systems are able to generate intermediate viewpoints of a 3D scene. In addition to the texture content, corresponding depth is associated with each viewpoint. To improve the coding efficiency of such content, view synthesis prediction can be used to further reduce inter-view redundancy in addition to traditional disparity compensated prediction. However, the predictor generated from the view synthesis process is affected by several factors, including signal properties of the texture, the accuracy of the depth and complexity of the scene, as well as coding errors in both the texture and depth. This paper presents an analysis of view synthesis prediction performance considering these factors. Based on this analysis, an adaptive depth quantization scheme is proposed to improve the depth coding, leading to better view synthesis prediction and overall coding efficiency gains. The proposed scheme is able to achieve an average bit rate savings of 0.9% on the coded and synthesized video with a maximum gain of up to 11.7% on the dependent views in the context of an HEVC-based codec.
Starting Page	1694
Ending Page	1698
File Size	189440
Page Count	5
File Format	PDF
ISBN	9781479923410
DOI	10.1109/ICIP.2013.6738349
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	multiview View synthesis prediction depth coding adaptive quantization
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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