• Title/Summary/Keyword: Inter layer Up-sampling

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An Efficient Architecture of Inter Layer Up-sampling in Scalable Video Decoder (SVC 복호화기에서 Inter Layer 업-샘플링의 효과적인 구조)

  • Ki, Dae-Wook;Kim, Jae-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.3
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    • pp.621-627
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    • 2010
  • This paper proposes an efficient architecture of Inter layer up-sampling in decoder for SVC(scalable video coding). A register bank for horizontal and vertical up-sampling and interpolation units are designed, by introducing the proposed architecture, 41% memory bandwidth is reduced compared to JSVM. For real-time operation for HD 6 layer decoder having CIF, SD, HD resolution for CGS layer, the hardware is designed to operate at 127MHz. The gate count is about 3000.

Adaptive Inter-layer Filter Selection Mechanism for Improved Scalable Extensions of High Efficiency Video Coding (SHVC) (스케일러블 HEVC 부호화 효율 개선을 위한 계층 간 적응적 필터 선택 알고리즘)

  • Lee, Jong-Hyeok;Kim, Byung-Gyu
    • Journal of Digital Contents Society
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    • v.18 no.1
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    • pp.141-147
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    • 2017
  • Scalable extension of High Efficiency Video Coding (SHVC) standard uses the up-sampled residual data from the base layer to make a residual data in the enhancement layer. This paper describes an efficient algorithm for improving coding gain by using the filtered residual signal of base layer in the Scalable extension of High Efficiency Video Coding (SHVC). The proposed adaptive filter selection mechanism uses the smoothing and sharpening filters to enhance the quality of inter-layer prediction. Based on two filters and the existing up-sampling filter, a rate-distortion (RD)-cost fuction-based competitive scheme is proposed to get better quality of video. Experimental results showed that average BD-rate gains of 1.5%, 2.1%, and 1.7% for Y, U and V components, respectively, were achieved, compared with SHVC reference software 5.0, which is based on HEVC reference model (HM) 13.

Fast Mode Decision Algorithm for Scalable Video Coding (SVC) Using Directional Information of Neighboring Layer (스케일러블 비디오 코딩에서 방향성 정보를 이용한 모드 결정 고속화 기법)

  • Jung, Hyun-Ki;Hong, Kwang-Soo;Kim, Byung-Gyu;Kim, Chang-Ki;Yoo, Jeong-Ju
    • Journal of Broadcast Engineering
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    • v.17 no.1
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    • pp.108-121
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    • 2012
  • As Scalable Video Coding (SVC) is a video compression standard extended from H.264/AVC, it is a way to provide scalability in terms of temporal, spatial and quality. Although the compression efficiency of SVC is increased due to the scalability in many aspect, it is essential to reduce the complexity in order to efficiently use because the complexity is relatively increased. To reduce the complexity of SVC in the paper, we propose fast mode decision algorithm to reduce the complexity of encoding process using direction information of B-picture by efficiently performing inter-layer prediction. The proposed algorithm is a fast mode decision algorithm that makes different from detection mode number of forward and backward, bi-direction in the way using best mode of base-layer up-sampled after simply SKIP mode detection using the direction information of best mode of base-layer up-sampled. The experimental results show that the proposed algorithm approach can achieve the maximum computational time saving about 53% with almost no loss of rate distortion (RD) performance in the enhancement layer.