Low complexity H.264 transcoder for bitrate reduction

Hyeong Min Nam, Byoung Kyu Dan, Hye Soo Kim, Jae Yun Jeong, Sung Jea Ko

Research output: Contribution to conferencePaperpeer-review

11 Citations (Scopus)


The paper presents a fast homogenous H.264 video transcoding algorithm in order to reduce the bitrate. We propose a fast mode decision algorithm by using the frame activity based on motion vector (MV) in input bitstream. In the proposed algorithm, the frame activity reflects a degree of macroblock (MB) mode variation between pre-coded bitstream and transcoded bitstream which degrades the rate-distortion (RD) performance significantly due to variable block size in H.264. Experimental results show that the proposed algorithm can be effectively applied to the H264 video transcoder for the lower complexity and the better quality.

Original languageEnglish
Number of pages4
Publication statusPublished - 2006
Event2006 International Symposium on Communications and Information Technologies, ISCIT - Bangkok, Thailand
Duration: 2006 Oct 182006 Oct 20


Other2006 International Symposium on Communications and Information Technologies, ISCIT

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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