An effective motion vector re-estimation method for low bit-rate video transcoding

June Sok Lee, Goo Rak Kwon, Jae Won Kim, Nam Hyeong Kim, Sung Jea Ko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

For the low bit-rate multimedia communications, video contents have to be transcoded according to the requirements of network bandwidth and the performance of clients. However, transcoding to the low bit-rate creates video quality degradation (drift error) caused by quantization, motion vector truncation, and downsizing. In this paper, we present an effective motion vector reestimation method to compensate drift errors in the spatial resolution reduction transcoding. Experimental results show that our method can preserve image quality while transcoding to the low bit-rate.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalReal-Time Imaging
Volume10
Issue number5
DOIs
Publication statusPublished - 2004 Oct

ASJC Scopus subject areas

  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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