標題: A fast downsizing video transcoder based on H.264/AVC standard
作者: Li, CH
Wang, CN
Chiang, TH
交大名義發表
National Chiao Tung University
公開日期: 2004
摘要: This paper presents a novel spatial transcoding technique for H.264/AVC based video applications. With superior coding performance, H.264 will be used in a variety of multimedia applications. For various video applications, spatial transcoding techniques can facilitate compact storage of video sequences with specified resolution and bitstrem format. Under demands, we can convert the archival bitstreams to another bitstream with different bitrates and different. resolution before transmission. For H.264 video transmission that needs spatial resolution conversion, we propose a bottom-up motion vector re-estimation, rapid rate-distortion (R-D) optimized mode decision. and adaptive motion search range to speed up the spatial transcoding and retain visual quality of transcoded video. The results show that the fast transcoder has the R-D performance close to or better than R-D re-encoding algorithm. which has the highest complexity and best coding efficiency.
URI: http://hdl.handle.net/11536/27272
ISBN: 3-540-23985-5
ISSN: 0302-9743
期刊: ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2004, PT 3, PROCEEDINGS
Volume: 3333
起始頁: 215
結束頁: 223
顯示於類別:會議論文