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Proceedings Paper

Transcoding DV into MPEG-2 in the DCT domain
Author(s): Donyeon Kim; Bumsik Youn; Yoonsik Choe
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Paper Abstract

Transcoding Digital Video (DV) for Digital Video Cassette Recorder (DVCR) into MPEG-2 intra coding is performed in the DCT domain to reduce conversion steps. Multiplying matrix by transformed data is used for 4:1:1-to-4:2:0 chroma format conversion and 2-4-8 DCT mode to 8-8 DCT mode conversion for parallel processing. M_quant of MPEG-2 rate control is computed in the DCT domain. For MPEG-2 inter coding, fast motion estimations taking advantage of data in the DCT domain are studied for transcoding. Among them, ME with overlapped search range shows better PSNR performance than ME without overlapping.

Paper Details

Date Published: 28 December 1998
PDF: 7 pages
Proc. SPIE 3653, Visual Communications and Image Processing '99, (28 December 1998); doi: 10.1117/12.334608
Show Author Affiliations
Donyeon Kim, Yonsei Univ. (South Korea)
Bumsik Youn, Yonsei Univ. (South Korea)
Yoonsik Choe, Yonsei Univ. (South Korea)

Published in SPIE Proceedings Vol. 3653:
Visual Communications and Image Processing '99
Kiyoharu Aizawa; Robert L. Stevenson; Ya-Qin Zhang, Editor(s)

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