DocumentCode
1691235
Title
Transcoder architectures for video coding
Author
Björk, Niklas ; Christopoulos, Charilaos
Author_Institution
Ericsson Telecom AB, Stockholm, Sweden
Volume
5
fYear
1998
Firstpage
2813
Abstract
Two different models for transcoding of H.263-based video streams are examined: rate reduction and resolution reduction. Results show that the computational complexity of the basic transcoding model can be reduced for each model by an average of 39% and 23% with less than 1 dB loss in quality for sequences with high motion. Comparisons with scalable video coding model are also presented
Keywords
computational complexity; decoding; discrete cosine transforms; image resolution; image sequences; inverse problems; transform coding; variable length codes; video coding; DCT; H.263-based video streams; IDCT; computational complexity reduction; high motion; image sequences; inverse discrete cosine transform; rate reduction; resolution reduction; scalable video coding model; transcoder architectures; transcoding model; variable length decoder; Bit rate; Computational complexity; Decoding; Discrete cosine transforms; Quantization; Streaming media; Transcoding; Transmitters; Video coding; Videoconference;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location
Seattle, WA
ISSN
1520-6149
Print_ISBN
0-7803-4428-6
Type
conf
DOI
10.1109/ICASSP.1998.678108
Filename
678108
Link To Document