Transcoding DV into MPEG-2 in the DCT domain

Donyeon Kim; Bumsik Youn; Yoonsik Choe

doi:10.1117/12.334608

28 December 1998 Transcoding DV into MPEG-2 in the DCT domain

Donyeon Kim, Bumsik Youn, Yoonsik Choe

Proceedings Volume 3653, Visual Communications and Image Processing '99; (1998) https://doi.org/10.1117/12.334608
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

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.

Citation Download Citation

Donyeon Kim, Bumsik Youn, and Yoonsik Choe "Transcoding DV into MPEG-2 in the DCT domain", Proc. SPIE 3653, Visual Communications and Image Processing '99, (28 December 1998); https://doi.org/10.1117/12.334608

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