Transcoding DV into MPEG-2 in the DCT domain

Donyeon Kim, Bumsik Youn, Yoonsik Choe

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
Pages (from-to)1026-1032
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberII
Publication statusPublished - 1999
EventProceedings of the 1999 Visual Communications and Image Processing - San Jose, CA, USA
Duration: 1999 Jan 251999 Jan 27

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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