A Feedback Buffer Control Algorithm for H.264 Video Coding


The KIPS Transactions:PartB , Vol. 11, No. 6, pp. 625-632, Oct. 2004
10.3745/KIPSTB.2004.11.6.625,   PDF Download:

Abstract

Since the H.264 encoding adopts both forward prediction and bi-direction prediction modes and exploits Variable Length Coding(VLC), the amount of data generated from video encoder varies as playing time goes by. The fixed bit rate encoding system which has limited transmission channel capacity uses a buffer to control output bitstream. It's necessary to control the bitstream to maintain within manageable range so as to protect buffer from overflow or underflow. With existing bit amount control algorithms, thewhich is relationship between distortion value and quantization parameter often excesses normal value to end up with video error. This paper proposes an algorithm to protect buffer from overflow or underflow by introducing a new quantization parameter against distortion value of H.264 video data. The test results of 6 exemplary data show that the proposed algorithm has the same PSNR as and up to 8% reduced bit rate against existing algorithms.


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Cite this article
[IEEE Style]
N. R. Son and G. S. Lee, "A Feedback Buffer Control Algorithm for H.264 Video Coding," The KIPS Transactions:PartB , vol. 11, no. 6, pp. 625-632, 2004. DOI: 10.3745/KIPSTB.2004.11.6.625.

[ACM Style]
Nam Rye Son and Guee Sang Lee. 2004. A Feedback Buffer Control Algorithm for H.264 Video Coding. The KIPS Transactions:PartB , 11, 6, (2004), 625-632. DOI: 10.3745/KIPSTB.2004.11.6.625.