Depth Error Induced Virtual View Synthesis Distortion Estimation for 3D Video Coding

2015 ◽  
Author(s):  
Yijian Xiang ◽  
Lu Fang ◽  
Ren Li ◽  
Ngai-Man Cheung
Keyword(s):  
Video Coding ◽  
3D Video ◽  
View Synthesis ◽  
Virtual View Synthesis ◽  
Virtual View ◽  
3D Video Coding ◽  
Distortion Estimation

Virtual View Synthesis Based on Asymmetric Bidirectional DIBR for 3D Video and Free Viewpoint Video

2020 ◽  
Vol 10 (5) ◽  
pp. 1562 ◽  
Author(s):  
Xiaodong Chen ◽  
Haitao Liang ◽  
Huaiyuan Xu ◽  
Siyu Ren ◽  
Huaiyu Cai ◽  
...  
Keyword(s):  
Computational Cost ◽  
Depth Estimation ◽  
Objective Evaluation ◽  
3D Video ◽  
View Synthesis ◽  
Depth Image ◽  
Estimation Errors ◽  
Virtual View Synthesis ◽  
Virtual View ◽  
Free Viewpoint Video

Depth image-based rendering (DIBR) plays an important role in 3D video and free viewpoint video synthesis. However, artifacts might occur in the synthesized view due to viewpoint changes and stereo depth estimation errors. Holes are usually out-of-field regions and disocclusions, and filling them appropriately becomes a challenge. In this paper, a virtual view synthesis approach based on asymmetric bidirectional DIBR is proposed. A depth image preprocessing method is applied to detect and correct unreliable depth values around the foreground edges. For the primary view, all pixels are warped to the virtual view by the modified DIBR method. For the auxiliary view, only the selected regions are warped, which contain the contents that are not visible in the primary view. This approach reduces the computational cost and prevents irrelevant foreground pixels from being warped to the holes. During the merging process, a color correction approach is introduced to make the result appear more natural. In addition, a depth-guided inpainting method is proposed to handle the remaining holes in the merged image. Experimental results show that, compared with bidirectional DIBR, the proposed rendering method can reduce about 37% rendering time and achieve 97% hole reduction. In terms of visual quality and objective evaluation, our approach performs better than the previous methods.

High Efficiency 3D Video Coding Using New Tools Based on View Synthesis

2013 ◽  
Vol 22 (9) ◽  
pp. 3517-3527 ◽  
Author(s):  
Marek Domanski ◽  
Olgierd Stankiewicz ◽  
Krzysztof Wegner ◽  
Maciej Kurc ◽  
Jacek Konieczny ◽  
...  
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
3D Video ◽  
View Synthesis ◽  
3D Video Coding

Joint video/depth rate allocation for 3D video coding based on view synthesis distortion model

2009 ◽  
Vol 24 (8) ◽  
pp. 666-681 ◽  
Author(s):  
Yanwei Liu ◽  
Qingming Huang ◽  
Siwei Ma ◽  
Debin Zhao ◽  
Wen Gao
Keyword(s):  
Video Coding ◽  
Rate Allocation ◽  
3D Video ◽  
View Synthesis ◽  
Distortion Model ◽  
3D Video Coding
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