Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
권호 표지

Region-of-Interest Coding using Sub-Picture Slice Structure

내부 영상 슬라이스 구조를 이용한 관심 영역 부호화

  • 김우식 (삼성종합기술원 멀티미디어랩)
  • Published : 2002.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

A sub-picture slice structure is proposed which can perform the region-of-interest coding effectively, where the subjective quality can be improved by coding the region-of-interest in higher quality than the background region. In addition, the bit allocation mechanism is Proposed where the interval between quantization parameters of the foreground and background region is fixed. And the method to reduce the boundary effect between the foreground and background region is proposed. The foreground region is better protected to the network channel error than the background region. which results in the overall subjective quality improvement in the error prone environments.

관심 영역 부호화 방법은 관심 영역을 고화질로 부호화하고 배경 영역을 많이 압축함으로써 주관적 화질을 향상시키는 방법이다. 본 논문에서는 관심 영역 부호화를 효율적으로 수행할 수 있는 새로운 슬라이스 구조인 내부 영상 슬라이스 구조를 제안한다. 또한 제안한 내부 영상 슬라이스 구조를 사용할 때에 관심 영역과 배경 영역에 비트율을 할당하는 방법에 대해 다루었다. 비트율을 할당할 때 관심 영역과 배경 영역의 양자화 파라메터의 간격을 고정시켜 빠르게 양자화 파라메터를 결정하도록 하고, 특히 각 영역간에 경계가 드러나지 않도록 화질이 점차적으로 변하도록 양자화 파라메터를 설정하였다. 또한 오류가 있는 전송 환경에서 관심 영역을 배경 영역보다 오류로부터 더 많이 보호하여 주관적 화질을 향상시켰다.

Keywords

References

  1. W.-S. Kim, Y.-K. Wang, and M. M. Hannuksela, 'Sub-picture coding with the reduced boundary effect,' Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-C096, May 2002
  2. 'Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, Joint Final Committee Draft(JFCD) of Joint Video Specification,' ITU-T Rec. H.264 | ISO/IEC 14496-10 AVC, Aug. 2002
  3. 'Information Technology-Generic Coding of Audio-Visual Objects, Part 2: Visual (Final Draft of International Standard),' ISO/IEC 14496-2, Dec. 1998
  4. Y. Wang, S. Wenger, J. Wen and A. K. Katsaggelos, 'Error resilient video coding techniques,' IEEE Signal Processing Mag., Vol. 17, No. 4, pp. 61-82, Jul. 2000 https://doi.org/10.1109/79.855913
  5. 'Video Coding for Low Bit Rate Communication,' ITU-T Recommendation H.263, Jan. 1998
  6. S. Wenger, G. Knorr, J. Ott and F. Kossentini, 'Error resilience support in H.263+,' IEEE Trans. Circuits Syst. Video Technol., Vol. CSVT-8, No. 7, pp. 867-877, Nov. 1998
  7. S. Wenger and M. Horowitz, 'FMO: Flexible macroblock ordering,' Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-C089, May 2002
  8. S. Wenger and M. Horowitz, 'Flexible macroblock ordering - A new error resilience tool for IP based video,' in Proc. Int. Thyrrhenian Workshop on Digital Communications, IWDC 2002, Capri, Italy, Sep. 2002
  9. S. Wenger and M. Horowitz, 'Scattered slices: A new error resilience tool for H.26L,' Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-B027, May 2002
  10. Y.-K. Wang and M. M. Hannuksela, 'Isolated regions: motivation, problems, and solutions,' Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-C072, May 2002
  11. Y.-K. Wang and M. M. Hannuksela, 'On random access,' Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-D097, Jul. 2002
  12. M. M. Hannuksela, Y.-K. Wang, and M. Horowitz, 'Enhancements to FMO,' Joint Video Team(JVT) of ISO/IEC MPEG and ITU-T VCEG, document JVT-D095, Jul. 2002
  13. M. M. Hannuksela, Y.-K. Wang and M. Gabbouj, 'Sub-picture: ROI coding and unequal error protection,' in Proc. IEEE Int. Conf. Image Proc., ICIP 2002, Rochester, New York, USA, Sep. 2002
  14. S. H. Lee, D.-S. Cho, Y.-S. Cho, S. H. Son, E. S. Jang, J.-S. Shin and Y. S. Seo, 'Binary shape coding using baseline-based method,' IEEE Trans. Circuits Syst. Video Technol., Vol. CSVT-9, No. 1, pp. 44-58, Feb. 1999
  15. A. Vetro, H. Sun and Y. Wang, 'MPEG-4 rate control for multiple video objects,' IEEE Trans. Circuits Syst. Video Technol., Vol. CSVT-9, No. 1, pp. 186-199, Feb. 1999
  16. J. Hartung, A. Jacquin, J. Pawlyk, J. Rosenberg, H. Okada and P. E. Crouch, 'Object-oriented H.263 compatible video coding platform for conferencing applications,' IEEE J. Select. Areas Commun., Vol. SAC-16, No. 1, pp. 42-55, Jan. 1998
  17. D. Chai, K. N. Ngan and A. Bouzerdoum, 'Foreground/background bit allocation for region-of-interest coding,' in Proc. IEEE Int. Conf. Image Processing, ICIP 2000, vol. 2, Vancouver, BC, Canada, Sep. 2000, pp. 923-926
  18. S. Wenger, 'Common conditions for wire-line, low delay IP/UDP/RTP packet loss resilient testing,' ITU-T Video Coding Experts Group, document VCEG-N79, Sep. 2001