3DV quality model based depth maps for view synthesis in FTV system
Depth maps are used for synthesis virtual view in free-viewpoint television (FTV) systems. When depth maps are derived using existing depth estimation methods, the depth distortions will cause undesirable artifacts in the synthesized views. To solve this problem, a 3D video quality model base depth...
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Published in | Journal of Shanghai University Vol. 15; no. 4; pp. 335 - 341 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Heidelberg
Shanghai University Press
01.08.2011
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Subjects | |
Online Access | Get full text |
ISSN | 1007-6417 1863-236X |
DOI | 10.1007/s11741-011-0747-2 |
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Summary: | Depth maps are used for synthesis virtual view in free-viewpoint television (FTV) systems. When depth maps are derived using existing depth estimation methods, the depth distortions will cause undesirable artifacts in the synthesized views. To solve this problem, a 3D video quality model base depth maps (D-3DV) for virtual view synthesis and depth map coding in the FTV applications is proposed. First, the relationships between distortions in coded depth map and rendered view are derived. Then, a precisely 3DV quality model based depth characteristics is develop for the synthesized virtual views. Finally, based on D-3DV model, a multilateral filtering is applied as a pre-processed filter to reduce rendering artifacts. The experimental results evaluated by objective and subjective methods indicate that the proposed D-3DV model can reduce bit-rate of depth coding and achieve better rendering quality. |
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Bibliography: | free-viewpoint television (FTV), 3D video quality model base depth maps (D-3DV), view synthesis Depth maps are used for synthesis virtual view in free-viewpoint television (FTV) systems. When depth maps are derived using existing depth estimation methods, the depth distortions will cause undesirable artifacts in the synthesized views. To solve this problem, a 3D video quality model base depth maps (D-3DV) for virtual view synthesis and depth map coding in the FTV applications is proposed. First, the relationships between distortions in coded depth map and rendered view are derived. Then, a precisely 3DV quality model based depth characteristics is develop for the synthesized virtual views. Finally, based on D-3DV model, a multilateral filtering is applied as a pre-processed filter to reduce rendering artifacts. The experimental results evaluated by objective and subjective methods indicate that the proposed D-3DV model can reduce bit-rate of depth coding and achieve better rendering quality. ZHANG Qiu-wen, AN Ping, ZHANG Yan, ZHANG Zhao-yang WANG Yuan-qing (1. Key Laboratory of Advanced Display and System Application (Shanghai University), Ministry of Education, Shanghai 200072, P. R. China 2. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China 3. Department of Computer Science and Technology, Anhui University of Finance and Economics, Bengbu 230030, Auhui, P. R. China 4. Department of Electronics Science and Engineering, Nanjing University, Nanjing 210093, P. R. China) 31-1735/N ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1007-6417 1863-236X |
DOI: | 10.1007/s11741-011-0747-2 |