Homogeneous down sampling transcoder for MPEG-2 video based on Hadamard transform

Chnagseok Bae, Byeonggweon Choi, Yoonsik Choe

Research output: Contribution to conferencePaper

Abstract

This paper describes a homogeneous transcoding scheme for down sampling an MPEG-2 video stream. We employ a spatial resolution reduction method and a motion vector refinement method using Hadamard transform to maintain quality of the transcoded video data. The proposed method transcodes a video stream in the DCT domain to reduce the processing time. Experimental results for Fmn and Susie video sequences show that our scheme can enhance quality of the video data from 0.1 dB to 1.3 dB compared to the methods using linear interpolation of the video data and median of motion vectors.

Original languageEnglish
Pages38-42
Number of pages5
Publication statusPublished - 2003 Dec 1
EventProceedings of the International Conference on Imaging Science, Systems and Technology, CISST'03 - Las Vegas, NV, United States
Duration: 2003 Jun 232003 Jun 26

Other

OtherProceedings of the International Conference on Imaging Science, Systems and Technology, CISST'03
CountryUnited States
CityLas Vegas, NV
Period03/6/2303/6/26

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Bae, C., Choi, B., & Choe, Y. (2003). Homogeneous down sampling transcoder for MPEG-2 video based on Hadamard transform. 38-42. Paper presented at Proceedings of the International Conference on Imaging Science, Systems and Technology, CISST'03, Las Vegas, NV, United States.