Journal ArticleDOI
Depth No-Synthesis-Error Model for View Synthesis in 3-D Video
TLDR
A depth no-synthesis-error (D-NOSE) model is developed to examine the allowable depth distortions in rendering a virtual view without introducing any geometry changes and shows that avirtual view can be synthesized losslessly if depth distortions follow the D-Nose specified thresholds.Abstract:
Currently, 3-D Video targets at the application of disparity-adjustable stereoscopic video, where view synthesis based on depth-image-based rendering (DIBR) is employed to generate virtual views. Distortions in depth information may introduce geometry changes or occlusion variations in the synthesized views. In practice, depth information is stored in 8-bit grayscale format, whereas the disparity range for a visually comfortable stereo pair is usually much less than 256 levels. Thus, several depth levels may correspond to the same integer (or sub-pixel) disparity value in the DIBR-based view synthesis such that some depth distortions may not result in geometry changes in the synthesized view. From this observation, we develop a depth no-synthesis-error (D-NOSE) model to examine the allowable depth distortions in rendering a virtual view without introducing any geometry changes. We further show that the depth distortions prescribed by the proposed D-NOSE profile also do not compromise the occlusion order in view synthesis. Therefore, a virtual view can be synthesized losslessly if depth distortions follow the D-NOSE specified thresholds. Our simulations validate the proposed D-NOSE model in lossless view synthesis and demonstrate the gain with the model in depth coding.read more
Citations
More filters
Journal ArticleDOI
Subjective and Objective Video Quality Assessment of 3D Synthesized Views With Texture/Depth Compression Distortion
TL;DR: The proposed VQA algorithm has a good performance evaluated on the entire synthesized video quality database, and is particularly prominent on the subsets which have significant temporal flicker distortion induced by depth compression and view synthesis process.
Journal ArticleDOI
Depth Map Driven Hole Filling Algorithm Exploiting Temporal Correlation Information
TL;DR: The temporal correlation of texture and depth information is exploited to generate a background reference image that is then used to fill the holes associated with the dynamic parts of the scene, whereas for static parts the traditional inpainting method is used.
Journal ArticleDOI
Regional Bit Allocation and Rate Distortion Optimization for Multiview Depth Video Coding With View Synthesis Distortion Model
TL;DR: Experimental results show that the proposed VSDM based RBA and RDO can improve the coding efficiency significantly for the test sequences and the RD performance comparisons using five different metrics validate the effectiveness of the proposed overall algorithm.
Journal ArticleDOI
Low Complexity Adaptive View Synthesis Optimization in HEVC Based 3D Video Coding
Siwei Ma,Shiqi Wang,Wen Gao +2 more
TL;DR: A novel zero-synthesized view difference (ZSVD) model is devised which jointly accounts for the distortion of the synthesized view induced by the compound impact of depth-disparity mapping, texture adaptation, and occlusion in the view synthesis process and can remarkably reduce the coding computational complexity with negligible performance loss.
Journal ArticleDOI
A Novel Distortion Model and Lagrangian Multiplier for Depth Maps Coding
TL;DR: A polynomial model revealing the relationship between the coding error of depth maps and the distortion of synthesized virtual view is derived and a virtual view-based Lagrangian multiplier for depth map coding is proposed.
References
More filters
Journal ArticleDOI
Efficient Prediction Structures for Multiview Video Coding
TL;DR: An experimental analysis of multiview video coding (MVC) for various temporal and inter-view prediction structures is presented, showing that prediction with temporal reference pictures is highly efficient, but for 20% of a picture's blocks on average prediction with reference pictures from adjacent views is more efficient.
Journal ArticleDOI
Stereoscopic image generation based on depth images for 3D TV
Liang Zhang,Wa James Tam +1 more
TL;DR: Results are presented to show that the proposed system provides an improvement in image quality of stereoscopic virtual views while maintaining reasonably good depth quality.
Journal ArticleDOI
View generation with 3D warping using depth information for FTV
TL;DR: This paper proposes a method to render a novel view image using multi-view images and depth maps which are computed in advance and succeeded in obtaining high quality arbitrary viewpoint images from relatively small number of cameras.
Journal ArticleDOI
The effects of multiview depth video compression on multiview rendering
TL;DR: The results show that-although its rate-distortion (R-D) performance is worse-platelet-based depth coding outperforms H.264, due to improved sharp edge preservation.
Journal ArticleDOI
View Synthesis for Advanced 3D Video Systems
TL;DR: High-quality intermediate views for an existing 9-view auto-stereoscopic display as well as other stereo- and multiscopic displays are presented, which prove the suitability of the approach for advanced 3DV systems.