• Title/Summary/Keyword: HEVC 기반 스케일러블 부호화

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Design and Implementation of Scalable Multi-view Video Coding Based on Integration of SHVC and MVC (SHVC 및 MVC 통합 기반의 스케일러블 다시점 비디오 부호화 설계 및 구현)

  • Jung, Tae-jun;Seo, Kwang-deok
    • Journal of Broadcast Engineering
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    • v.22 no.3
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    • pp.405-408
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    • 2017
  • Based on the fact that high similarities exist between viewpoints of multi-view images, MV-HEVC achieves high encoding efficiency by performing conventional temporal direction prediction in a single viewpoint as well as inter-view prediction between viewpoints. In this paper, we propose to integrate SHVC and MVC (Multi-view Video Coding) to implement scalable multi-view video encoder using HEVC as a base layer. According to experimental results, it is verified that the BD-PSNR improvement reaches up to 1.5dB while reducing the BD-Bitrate by around 50~60%.

Layered Coding Method for Scalable Coding of HDR and SDR videos (HDR와 SDR 비디오의 스케일러블 부호화를 위한 계층 압축 기법)

  • Lim, Jeongyun;Ahn, Yong-Jo;Lim, Woong;Park, Seanae;Sim, Donggyu;Kang, Jung-Won
    • Journal of Broadcast Engineering
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    • v.20 no.5
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    • pp.756-769
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    • 2015
  • In this paper, we propose a scalable coding method for high dynamic range (HDR) and standard dynamic range (SDR) videos based on Scalable High Efficiency Video Coding (SHVC). The proposed method has multi-layer coding architecture that consists of base layer for SDR videos and enhancement layer for HDR videos to support the backward compatibility with legacy codec and display devices. Also, to improve coding efficiency of enhancement layers, a global inverse tone mapping is applied to the reconstructed SDR video and the compensated frames are referred for coding of the enhancement layer. The proposed method is found to achieve BD-Rate gain of 43.0% on average (maximum 76.3%) for the enhancement layer and 15.7% on average (maximum 31%) for dual-layer against the SHM 7.0 reference software.