ETRI Journal

  • 제31권1호
  • /
  • Pages.80-82
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  • 2009
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Reduced-Resolution Intra Block Coding Mode

  • Park, Sung-Jae (Department of Electronic Engineering, Kwangwoon University) ;
  • Nam, Jung-Hak (Department of Computer Engineering, Kwangwoon University) ;
  • Sim, Dong-Gyu (Department of Computer Engineering, Kwangwoon University) ;
  • Oh, Seoung-Jun (Department of Electronic Engineering, Kwangwoon University) ;
  • Hong, Jin-Woo (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
  • 투고 : 2008.09.12
  • 심사 : 2008.12.19
  • 발행 : 2009.02.28
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초록

In this letter, a new intra-block coding mode is presented to improve the coding efficiency for band-limited signals. A band-limited block is sub-sampled, and the sub-sampled signal is coded on the basis of the conventional prediction/transform coding. The rest of the samples are reconstructed by interpolation at the decoder side without any side information. Experimental results show that the proposed algorithm achieves coding gains of 2.7% for common intermediate format (CIF), 4.29% for quarter CIF, and 6.39% for 720p60 sequences against the H.264/AVC JM10.2 reference software.

키워드

참고문헌

  1. J. Ostermann et al., "Video Coding with H.264/AVC: Tools, Performance, and Complexity," IEEE Circuits and Systems Magazine, vol. 4, no. 1, 2004, pp. 7-28. https://doi.org/10.1109/MCAS.2004.1286980
  2. K.S. Lee and H.J. Kim, "An Implementation of H.264 Intra Predictor Based on Sub-sampling," Circuits and Systems, APCCAS, IEEE Asia Pacific Conf., Dec. 2006, pp. 1079-1082
  3. G. Bjontegaard, "Calculation of Average PSNR Differences between RD-Curves," ITU-T Q.6/SG16 VCEQ, VCEQ-M33, Apr. 2001.