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학술지 Post-processing of 3D Video Extension of H.264/AVC for a Quality Enhancement of Synthesized View Sequences
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저자
방건, 허남호, 이성환
발행일
201404
출처
ETRI Journal, v.36 no.2, pp.242-252
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.14.2113.0082
협약과제
14MR9500, (통합)초고품질 콘텐츠 지원 UHD실감 방송/디지털 시네마/사이니지 융합서비스 기술 개발, 김진웅
초록
Since July of 2012, the 3D video extension of H.264/AVC has been under development to support the multi-view video plus depth format. In 3D video applications such as multi-view and free-view point applications, synthesized views are generated using coded texture video and coded depth video. Such synthesized views can be distorted by quantization noise and inaccuracy of 3D wrapping positions, thus it is important to improve their quality where possible. To achieve this, the relationship among the depth video, texture video, and synthesized view is investigated herein. Based on this investigation, an edge noise suppression filtering process to preserve the edges of the depth video and a method based on a total variation approach to maximum a posteriori probability estimates for reducing the quantization noise of the coded texture video. The experiment results show that the proposed methods improve the peak signal-to-noise ratio and visual quality of a synthesized view compared to a synthesized view without post processing methods. © 2014 ETRI.
키워드
3D video coding, Denoising, MAP, Postprocessing, Total variation, View synthesis
KSP 제안 키워드
3D Video Coding, Depth video, Experiment results, Maximum a posteriori probability, Peak-Signal-to-Noise-Ratio(PSNR), Post-Processing, Probability estimates, Processing Method, Quality enhancement, Quantization Noise, Signal noise ratio(SNR)