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Journal of Electronic Imaging

Efficient chroma subsampling strategy for compressing digital time delay integration mosaic video sequences in H.264/AVC
Author(s): Kuo-Liang Chung; Wei-Jen Yang; Chyou-Hwa Chen; Hong-Yuan M. Liao; Sheng-Mao Zeng
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Paper Abstract

Digital time delay and integration (DTDI) mosaic video sequences captured by high-speed DTDI line-scan cameras are commonly used in industrial print inspection and high-speed capture applications. To reduce the memory requirement for saving these video sequences, it is necessary to compress them. In this paper, we present an efficient chroma subsampling strategy for compressing DTDI mosaic video sequences in H.264/AVC. Based on the color domain transform between the RGB domain and the YUV domain, a position-selection strategy is proposed to determine the two subsampling chroma components, U and V, according to the DTDI mosaic structure. The quality of reconstructed DTDI video sequences is better than those reconstructed by conventional methods. By experimenting on some popular test DTDI mosaic video sequences, the results turned out to be superior than conventional ones that adopt H.264/AVC as compression standard.

Paper Details

Date Published: 1 April 2011
PDF: 16 pages
J. Electron. Imaging. 20(2) 023011 doi: 10.1117/1.3586799
Published in: Journal of Electronic Imaging Volume 20, Issue 2
Show Author Affiliations
Kuo-Liang Chung, National Taiwan Univ. of Science and Technology (Taiwan)
Wei-Jen Yang, National Taiwan Univ. of Science and Technology (Taiwan)
Chyou-Hwa Chen, National Taiwan Univ. of Science and Technology (Taiwan)
Hong-Yuan M. Liao, Institute of Information Science (Taiwan)
Sheng-Mao Zeng, National Taiwan Univ. of Science and Technology (Taiwan)

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