AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER

Xue Xiangyang; Wu Lide

Volume 19 Issue 6

Nov. 1997

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 1997 > 19(6): 820-823

Xue Xiangyang, Wu Lide . AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER[J]. Journal of Electronics & Information Technology, 1997, 19(6): 820-823.

Citation:

Xue Xiangyang, Wu Lide . AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER[J]. Journal of Electronics & Information Technology, 1997, 19(6): 820-823.

Xue Xiangyang, Wu Lide . AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER[J]. Journal of Electronics & Information Technology, 1997, 19(6): 820-823.

Citation:

Xue Xiangyang, Wu Lide . AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER[J]. Journal of Electronics & Information Technology, 1997, 19(6): 820-823.

PDF( 776 KB)

AN IMPLEMENTATION METHOD FOR IMPROVING H.261 VIDEO CODER

Received Date: 1996-05-22
Rev Recd Date: 1997-02-25
Publish Date: 1997-11-19

Abstract

Abstract

This paper proposes a method to improve H.261 video coder by modifying the block matching motion estimation algorithm. We think that the traditional block matching algorithm based on the least mean square error or absolute error criteria is not suitable for H.261 video coder. The good criteria must consider not only the error energy, but also the bit number for encoding motion vectors as well as the interframe prediction error. Experimental results show that the performance of H.261 coder is improved greatly by using the proposed implementation method.

FullText(HTML)

References(1)

References

[1] CCITT Recommendation H.261, Video Codec for Audiovisual Services at P64kbits/s, Geneva: 1990. [2] MPEG, ISO CD11172.2: Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbita/s, Nov. 1991. [3] Jain J R, Jain A K. Displacement measure and its application in interframe image coding. IEEE Trans. on COM, 1981, COM-29(12):1799-1806. [4] Musmann H G, Pirsch P, Grallert H J. Advances in picture coding, Proc[J].IEEE.1985, 73(4):523-548 [5] Joag H M, Chen L G, Chiueh T D. Accuracy improvement and cost reduction of 3-step search block matching algorithm for video wding, IEEE Trans. on CASVT, 1994, 4(1): 88-90.

Relative Articles

Supplements(0)

Cited By

Proportional views