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A Temporal Subsampling Approach for Multiview Depth Map Compression

Ekmekcioglu, E, Worrall, ST and Kondoz, AM (2009) A Temporal Subsampling Approach for Multiview Depth Map Compression IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 19 (8). 1209 - 1213. ISSN 1051-8215

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In this letter, a new method is proposed for multiview depth map compression. It is intended to skip some parts of certain depth map viewpoints without encoding and to just predict those skipped parts by exploiting the multiview correspondences and some flags transmitted. It is targeted to save the bit rate allocated for depth map sequences to a great extent. Multiview correspondences are exploited for each skipped depth map frame by making use of the depth map frames belonging to neighboring views and captured at the same time instant. A prediction depth map frame is constructed block by block on a free viewpoint qualitywise selective basis from a couple of candidate predictors generated through the implicit and explicit usage of the 3-D scene geometry. Especially at lower bit rates, dropping higher temporal layers of certain depth map viewpoints and replacing them with corresponding predictors generated using the proposed multiview aided approach save a great amount of bit rate for those depth map viewpoints. At the same time, the perceived quality of the reconstructed stereoscopic videos is maintained, which is proved through a set of subjective tests.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Technology, Engineering, Electrical & Electronic, Engineering, Depth map compression, multiview depth map coding, video coding, VIDEO, TELEVISION, 3-D
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Dr Maria Rodriguez-Marquez
Date Deposited: 15 Sep 2010 14:50
Last Modified: 23 Sep 2013 18:37

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