Edge-aware intra prediction for depth-map coding

Shen, Godwin; Kim, Woo-Shik; Ortega, Antonio; Lee, Jaejoon; Wey, Ho-Cheon

doi:10.1109/icip.2010.5652792

Cited by 46 publications

(19 citation statements)

References 12 publications

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“…For intra-prediction coding, one method focuses on the sharp edge of depth boundaries [10], [11], for example, while others focus on the homogeneous regions of the depth map [12]. Similarly, there have been efforts to maintain the sharp boundaries of the depth map with an in-loop filter [13], in which erroneous pixels are replaced by their most reliable neighboring pixels.…”

Section: Introductionmentioning

confidence: 99%

View Synthesis Distortion Estimation for AVC- and HEVC-Compatible 3-D Video Coding

2014

IEEE Trans. Circuits Syst. Video Technol.

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This paper presents an efficient view synthesis distortion estimation method for 3-D video. It also introduces the application of this method to Advanced Video Coding (AVC)-and High Efficiency Video Coding (HEVC)-compatible 3-D video coding. Although the proposed view synthesis distortion scheme is generic, its use for actual 3-D video codec systems addresses the many issues caused by different video-coding formats and restrictions. The solutions for these issues are herein proposed. The simulation results show that the proposed scheme can achieve approximately 5.4% and 10.2% coding gains for AVCand HEVC-compatible 3-D coding, respectively. In addition, the results show the remarkable complexity reduction of the scheme compared to the view synthesis optimization method currently used in 3-D-HEVC. The proposed method has been adopted into the presently developing AVC-and HEVC-compatible test model reference software. Index Terms-3-D Advanced Video Coding (AVC), 3-D High Efficiency Video Coding (HEVC), 3-D video (3-DV) codec, depth map coding, multiview coding, view synthesis distortion, view synthesis distortion estimation.

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Section: Introductionmentioning

confidence: 99%

View Synthesis Distortion Estimation for AVC- and HEVC-Compatible 3-D Video Coding

2014

IEEE Trans. Circuits Syst. Video Technol.

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“…Hence, many efficient coding methods specialized on the depth map have been introduced. An edge-aware intra prediction scheme in [7] reduced the prediction error energies in blocks with an arbitrary edge shape. The proposed method in [8] employed a virtual depth view synthesized from the neighboring views as a reference picture in a motion estimation process.…”

Section: Introductionmentioning

confidence: 99%

Effect of a synthesized depth view on multi-view rendering quality

Lee

Park

2011

2011 18th IEEE International Conference on Image Processing

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In general, a depth image in a multi-view video plus depth (MVD) format is employed as additional data to synthesize a virtual texture view. In this paper, the proposed method generates a virtual depth view through depth view synthesis and then adaptively uses the synthesized virtual depth view during encoding, according to an evaluation on effect of the synthesized depth view on the multi-view rendering quality. Experimental results demonstrate that the proposed method significantly reduces a depth image coding bit rate without degrading the rendering quality.Index Terms -Depth map coding, depth view synthesis, multi-view video plus depth (MVD), rendering quality.

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“…In [4], an edge-aware intra prediction was proposed to reduce the prediction error energy in blocks with arbitrary edge shapes. In [5], a platelet-based depth coding method that separates continuous regions by straight lines along their boundaries by modeling them with piecewise-constant or piecewise-linear functions was proposed.…”

Section: Introductionmentioning

confidence: 99%

New distortion model for depth coding in 3DVC

Zhang

Fan

Zhao

et al. 2012

2012 Visual Communications and Image Processing

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Video plus the corresponding depth maps is now the most popular data format for 3D video coding, as it is convenient to synthesize an arbitrary intermediate virtual view without the need to display the depth map for end users. How to compress the depth map efficiently is one of the key problems in 3DVC. In this paper we propose a new distortion model for depth map coding by considering the view synthesis distortion caused by depth distortion and the disparity rounding problem. Simulation results show that the proposed scheme can achieve 34% bit-rate saving for depth map coding, or 1.28 dB gain in terms of PSNR on average for synthesized virtual views.Index Terms-depth map coding, view disparity, view synthesis, rate-distortion optimization, 3DVC

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Edge-aware intra prediction for depth-map coding

Cited by 46 publications

References 12 publications

View Synthesis Distortion Estimation for AVC- and HEVC-Compatible 3-D Video Coding

View Synthesis Distortion Estimation for AVC- and HEVC-Compatible 3-D Video Coding

Effect of a synthesized depth view on multi-view rendering quality

New distortion model for depth coding in 3DVC

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