A Hybrid Motion Compensated 3-D Video Coding System for Blocking Artifacts Reduction
We compare, both objectively and subjectively, the performance of various advanced motion compensation methods, including overlapped block motion compensation (OBMC) and control grid interpolation (CGI), in a 3-D wavelet based coding system. Our results indicate that an OBMC sequence usually has a higher PSNR than those of the other methods, while a CGI sequence usually has the least number of blocking artifacts. We combine these two methods in a hybrid system in order to achieve better visual quality and maintain satisfactory coding efficiency simultaneously. The objective and subjective results indicate that the proposed hybrid method removes more than 50% of blocking artifacts of an OBMC sequence, while simultaneously maintaining a high PSNR performance.
KeywordsDiscrete Wavelet Transform Motion Vector Visual Quality Motion Compensation Block Match Algorithm
Unable to display preview. Download preview PDF.
- 3.Hanke, K., Rusert, T., Ohm, J.-R.: Motion-compensated 3D video coding using smooth transitions. In: Proc. SPIE Visual Communications Image Processing, vol. 5022, pp. 933–940 (2003)Google Scholar
- 4.ITU-T: ITU-T Recommendation H.263: Video coding for low bitrate communication. The International Telecommunication Union (1996)Google Scholar
- 5.ITU-R: ITU-R Recommendation BT.500-11: Methodology for the subjective assessment of the quality of television pictures. The International Telecommunication Union (2002)Google Scholar
- 8.Nakaya, Y., Harashima, H.: Motion compensation based on spatial transformation. IEEE Transactions on Circuits and Systems for Video Technology 6(3), 243–250 (1994)Google Scholar
- 10.Ohm, J.-R.: Three-dimensional subband coding with motion compensation. IEEE Trans. on Image Processing 4(3), 339–367 (1994)Google Scholar
- 12.Rusert, T., Hanke, K., Ohm, J.-R.: Transition filtering and optimized quantization in interframe wavelet video coding. In: Proc. SPIE Visual Communications Image Processing, vol. 5150, pp. 682–694 (2003)Google Scholar
- 13.Secker, A., Taubman, D.: Highly scalable video compression using a lifting-based 3D wavelet transform with deformable mesh motion compensation. In: Proc. IEEE Int. Conf. Image Processing, pp. 1029–1032 (2001)Google Scholar
- 15.Sullivan, G.J., Baker, R.L.: Motion compensation for video compression using control grid interpolation. In: Proc. IEEE Int. Conf. Acoustics, Speech, Signal Processing, vol. 4, pp. 2713–2716 (1991)Google Scholar
- 16.Woods, J.W., Chen, P.: Improved MC-EZBC with quarter-pixel motion vectors. ISO/IEC JTC1/SC29/WG11, MPEG doc., M8366, Fairfax (May 2002)Google Scholar
- 17.Wu, Y., Cohen, R.A., Woods, J.W.: An overlapped block motion estimation for MC-EZBC. ISO/IEC JTC1/SC29/WG11, MPEG doc., M10158, Brisbane (October 2003)Google Scholar