Arbitrary downsizing video transcoding using fast motion vector reestimatlon

Yong Qing Liang; Lap Pui Chau; Yap Peng Tan

doi:10.1109/LSP.2002.804130

Arbitrary downsizing video transcoding using fast motion vector reestimatlon

Yong Qing Liang, Lap Pui Chau, Yap Peng Tan

Research output: Journal article publication › Journal article › Academic research › peer-review

34 Citations (Scopus)

Abstract

We propose a video transcoding method for arbitrarily downsizing a preeoded video by reestimating from its original motion vectors the new motion vectors required to code the downsized video. Compared with the existing methods for downsizing a precoded video by an integral factor, the main advantage of the proposed method is that the spatial resolution of the precoded video can be freely adjusted to meet different bandwidth and device requirements. Experimental results show that the proposed method can obtain arbitrarily downsized video with good perceptual quality while reducing the computational complexity of the process.

Original language	English
Pages (from-to)	352-355
Number of pages	4
Journal	IEEE Signal Processing Letters
Volume	9
Issue number	11
DOIs	https://doi.org/10.1109/LSP.2002.804130
Publication status	Published - Nov 2002
Externally published	Yes

Keywords

Arbitrary downsizing
Motion vector estimation
Video transcoding

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering
Applied Mathematics

More information

10.1109/LSP.2002.804130

Cite this

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AB - We propose a video transcoding method for arbitrarily downsizing a preeoded video by reestimating from its original motion vectors the new motion vectors required to code the downsized video. Compared with the existing methods for downsizing a precoded video by an integral factor, the main advantage of the proposed method is that the spatial resolution of the precoded video can be freely adjusted to meet different bandwidth and device requirements. Experimental results show that the proposed method can obtain arbitrarily downsized video with good perceptual quality while reducing the computational complexity of the process.

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Arbitrary downsizing video transcoding using fast motion vector reestimatlon

Abstract

Keywords

ASJC Scopus subject areas

More information

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