The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Enhanced RGB Video Coding Based on Correlation in the Adjacent Block

인접블록의 상관관계에 기반한 RGB video coding 개선 알고리즘

  • 김양수 (연세대학교 전기전자공학과) ;
  • 정진우 (연세대학교 전기전자공학과) ;
  • 최윤식 (연세대학교 전기전자공학과)
  • Published : 2009.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

H.264/AVC High 4:4:4 Intra/Predictive profiles supports RGB 4:4:4 sequences for high fidelity video. RGB color planes rather than YCbCr color planes are preferred by high-fidelity video applications such as digital cinema, medical imaging, and UHDTV. Several RGB coding tools have therefore been developed to improve the coding efficiency of RGB video. In this paper, we propose a new method to extract more accurate correlation parameters for inter-plane prediction. We use a searching method to determine the matched macroblock (MB) that has a similar inter-color relation to the current MB. Using this block, we can infer more accurate correlation parameters to predict chroma MB from luma MB. Our proposed inter-plane prediction mode shows an average bits saving of 15.6% and a PSNR increase of 0.99 dB compared with H.264 high4:4:4 intra-profile RGB coding. Furthermore, extensive performance evaluation revealed that our proposed algorithm has better coding efficiency than existing algorithms..

Keywords

References

  1. JVT, 'Joint Draft 6 of 'New profiles for professional applications' amendment to ITU-t Rec. H,264 & ISO/IEC 14496-10,' JVT - V204. January 2007,
  2. D. Marpe, H. Kirchhoffer 'Macrobolck-adaptive residual color space transforms for 4:4:4 video coding,' proc, IEEE ICIP, pp3157-3160, October 2006 https://doi.org/10.1109/ICIP.2006.313039
  3. Woo-Shik Kim, Dae-Sung Cho and Hyun Mun Kim, 'Inter-Plane Prediction for RGB video coding,' IEEE ICIP vol. 2, pp. 785-788, 2004 https://doi.org/10.1109/ICIP.2004.1419415
  4. Byung Cheal Song, Yun Gu Lee, and Nak Hoon Kim'Block Adaptive Inter-Color Compensation Algorithm for RGB 4:4:4 Video Coding,' IEEE CVST., vol. 18, no.10, pp, 1447-1451, Oct, 2008 https://doi.org/10.1109/TCSVT.2008.2002827
  5. S.H, Lee, J,W, Moon, J,W. Byun and N,I. Cho, 'A New Intra Prediction Method Using Channel Correlations for The H.264/AVC Intra Coding,' Picture coding Symposium 2009. march, 2009 https://doi.org/10.1109/PCS.2009.5167349
  6. Y.-H. Kim, S.-Y. Jung, B.H. Choi and J,K.Park, 'High Fidelity RGB Video coding Using Adaptive Inter-Plane Weighted Prediction,' IEEE CVST., vol. 19, No,7, pp 1051-1056, July, 2009 https://doi.org/10.1109/TCSVT.2009.2020251
  7. G, Bjontegaard, 'Calculation of average PSNR differences betweenRD-curves,' presented at the 13th Meeting of Video Coding Experts Group (VCEG), Austin, TX, Apr. 2001, VCEG-M33, unpublished