Hybrid Video Transcoder for Bitrate Reduction of H.264 Bit Streams

摘要：

This paper presents a hybrid H.264 video transcoding scheme in order to reduce the bitrate.Firstly,we propose a cascaded pixel-domain architecture to transcode intra frame which cna enhance the rate-distortion performance;Then, we propose to transcode inter frame with open-loop architecture,which can improve the transcoding speed;at last, we propose a drift error compensation algorithm for P frames in order to maintain the transcoding quality. simulation results show that compared to existing H.264 transcoder, the hybrid transcoding method has lower computation complexity and higher transcoded quality,it can be effectively applied to transcode H.264 video stream for bitrate reduction.

作者: Min Li Bo Wang

作者单位: School of Computer Science Wuhan University of Science and Engineering Wuhan,China Electrical School of Wuhan University Wuhan University Wuhan,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 107-110

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）