Title :
A study on the rate control method for MPEG transcoder considering drift-error propagation
Author :
NAGAYOSHI, Isao ; Kasai, Hiroyuki ; Tominaga, Hideyoshi
Author_Institution :
Dept. of Electron., Inf. & Commun. Eng., Waseda Univ., Tokyo, Japan
Abstract :
As the transform method of video bit stream to the required bit stream format, the video transcoder has been adopted in various applications. In this paper, we focus on a MPEG video transcoder that can reduce the required bit rate by using re-quantization in the DCT domain. Furthermore, we propose a rate control method for this MPEG video transcoder that takes into consideration the estimation of drift-error propagation. Next, from simulation experiments, we compare the proposed rate control method to the traditional rate control method in terms of complexity, required buffer size and picture quality
Keywords :
buffer storage; code standards; coding errors; computational complexity; data compression; discrete cosine transforms; quantisation (signal); telecommunication standards; transform coding; video coding; DCT domain; MPEG video transcoder; bit rate reduction; bit stream format; buffer size; computational complexity; discrete cosine transform; drift-error propagation; picture quality; rate control method; re-quantization; simulation experiments; transform method; video bit stream; video transcoder; Bit rate; Discrete cosine transforms; Error correction; Image converters; Image quality; Quantization; Size control; Streaming media; Transcoding; Video compression;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.901120
