MPEG-2 to H.264 video transform-domain downscaling transcoder

Ke Ying Liao, Jar Ferr Yang, Yu Kuang Tu, Shau Yin Tseng

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we proposed a transform-domain MPEG-2 to H.264 intraframe downscaling transcoding algorithm. The proposed algorithm effectively performs 2:1 down sizing from an 8 × 8 screte cosine transform coefficient matrix into a 4 × 4 integer transform coefficient matrix without involving any spatial-domain process. By exploiting the proposed approach, the complexity of the transcoder is reduced. From the experiment results, we can find that the proposed transform-domain MPEG-2 to H.264 transcoder leads to a similar PSNR compared to that derived from the Cascaded Pixel-Domain Transcoder (CPDT) while the propose method can save 38% and 91% of computation on the numbers of multiplication and addition, respectively.

Original languageEnglish
Title of host publication2006 IEEE Region 10 Conference, TENCON 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)1424405491, 9781424405497
Publication statusPublished - 2006 Jan 1
Event2006 IEEE Region 10 Conference, TENCON 2006 - Hong Kong, China
Duration: 2006 Nov 142006 Nov 17

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450


Other2006 IEEE Region 10 Conference, TENCON 2006
CityHong Kong

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering


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