Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Depth-map coding using the block-based decision of the bitplane to be encoded

블록기반 부호화할 비트평면 결정을 이용한 깊이정보 맵 부호화

  • Kim, Kyung-Yong (Media Lab., College of Electronics and Information, Kyung Hee Univ.) ;
  • Park, Gwang-Hoon (Media Lab., College of Electronics and Information, Kyung Hee Univ.)
  • 김경용 (경희대학교 전자정보대학 미디어랩) ;
  • 박광훈 (경희대학교 전자정보대학 미디어랩)
  • Received : 2009.12.31
  • Accepted : 2010.02.10
  • Published : 2010.03.30
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Abstract

This paper proposes an efficient depth-map coding method. The adaptive block-based depth-map coding method decides the number of bit planes to be encoded according to the quantization parameters to obtain the desired bit rates. So, the depth-map coding using the block-based decision of the bit-plane to be encoded proposes to free from the constraint of the quantization parameters. Simulation results show that the proposed method, in comparison with the adaptive block-based depth-map coding method, improves the average BD-rate savings by 3.5% and the average BD-PSNR gains by 0.25dB.

본 논문에서는 깊이정보 맵의 효율적인 부호화 방법을 제안한다. 블록 기반 적응적 깊이정보 맵 부호화 방법에서는 깊이정보 맵에 대한 비트율 조절을 위해 양자화 변수를 이용하여 부호화할 비트평면의 수를 결정한다. 이러한 양자화 변수에 의한 제약 조건에서 벗어나서 부호화할 비트평면을 블록 단위에서 결정하는 방법을 제안한다. 실험 결과, 제안하는 방법이 블록 기반 적응적 깊이정보 맵 부호화 방법보다 BD-PSNR이 0.25 dB 향상되었고 BD-rate가 3.5% 감소되어 제안하는 방법의 우수함을 확인할 수 있었다.

Keywords

References

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