ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지

Motion Compensated Subband Video Coding with Arbitrarily Shaped Region Adaptivity

  • Kwon, Oh-Jin (International Research Institute of Information and Telecommunications (IRIIT) and the Department of Electronics Engineering, Sejong University) ;
  • Choi, Seok-Rim (International Research Institute of Information and Telecommunications (IRIIT) and the Department of Electronics Engineering, Sejong University)
  • Received : 2000.06.06
  • Published : 2001.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

The performance of Motion Compensated Discrete Cosine Transform (MC-DCT) video coding is improved by using the region adaptive subband image coding [18]. On the assumption that the video is acquired from the camera on a moving platform and the distance between the camera and the scene is large enough, both the motion of camera and the motion of moving objects in a frame are compensated. For the compensation of camera motion, a feature matching algorithm is employed. Several feature points extracted using a Sobel operator are used to compensate the camera motion of translation, rotation, and zoom. The illumination change between frames is also compensated. Motion compensated frame differences are divided into three regions called stationary background, moving objects, and newly emerging areas each of which is arbitrarily shaped. Different quantizers are used for different regions. Compared to the conventional MC-DCT video coding using block matching algorithm, our video coding scheme shows about 1.0-dB improvements on average for the experimental video samples.

Keywords

References

  1. JPEG Still Image Compression Standard Pennebaker, W.;Mitchell, J.
  2. Subband Image Coding Woods, J.W.(ed.)
  3. Vector Quantization and Signal Compression Gersho, A.;Gray, R.M.
  4. Motion Analysis and Image Sequence Processing Sezan, M.I.;Lagendik, R.L.
  5. IEEE Trans. on Image Processing v.3 no.Sept. Guest editorial: Introduction to Special Issue on Image Sequence Compression Girod, B.(et al.)
  6. CCITT Recommendation H.261, Video Codec for Audiovisual Services at p x 64 Kbits/s, CCITT doc. COM XV-R 37-E
  7. Comm. of the ACM v.34 no.4 MPEG: A video Compression Standard for Multimedia Applications LeGall, D.J.
  8. IEEE Comm. Magazine v.32 no.5 MPEG Coding for Variable Bit Rate Video Transmission Pancha, P.;Zarki, M.E.
  9. MPEG-2 Watkinson, J.
  10. Overview of the MPEG-4 Standard, ISO/IEC JTC1/SC29/WG11 N3156 Koenen, R.
  11. Proc. IEEE ICASSP-88 Three Dimensional Subband Coding of Video Karlsson, G.;Vetterli, M.
  12. Proc. SPIE Conf. Vis. Comm. and Image Processing Image Sequence Coding Using a Three Dimensional Wavelet Packet and Adaptive Selection Ebrahimi, T.;Kunt, M.
  13. IEEE Trans. on Circuits and Systems for Video Technology v.2 no.Sept. Motion Compensated Wavelet Transform Coding for Color Video Compression Zhang, Y.Q.;Zafar, S.
  14. Signal Processing: Image Comm. v.4 no.Aug. Motion Compensated Subband Coding Schemes for Compatible High Definition TV Coding Toutier, P.J.(et al.)
  15. Proc. IEEE ICASSP-92 Temporal Domain Sub-band Video Coding with Motion Compensation Ohm, J.R.
  16. IEEE Trans. on Circuits and Systems for Video Technology v.9 no.3 Subband Video Coding with Scene-Adaptive Hierarchical Motion Estimation Lee, J.;Dickinson, B.W.
  17. IEEE Trans. on Image Processing v.8 no.2 Rate-Distortion-Constrained Subband Video Coding Kossentini, F.(et al.)
  18. IEEE Trans. on Image Processing v.7 no.May Region Adaptive Subband Image Coding Kwon, O.;Chellappa, R.
  19. Proc. IEEE ICASSP-93 v.5 Motion Detection in Image Sequences Acquired from a Moving Platform Zheng, Q.;Chellappa, R.
  20. Fundamentals of Digital Image Processing Jain, A.K.
  21. A Simplified Approach to Image Processing - Classical and Modern Techniques in C Crane, R.
  22. IEEE Trans. on IP v.IP-3 no.May Efficient Quadtree Coding of Images and Video Sullivan, G.J.;Baker, R.L.
  23. IEEE Trans. on IT v.IT-30 no.May Optimum Quantizer Performance for a Class of Non-Gaussian Memoryless Sources Farvardin, N.;Modestino, J.M.
  24. Coded Representation of Pictures and Audio Information, Test Model 5, ISO/IEC JTC1/SC29/WG11