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Efficient chroma subsampling strategy for compressing digital time delay integration mosaic video sequences in H.264/AVC

[+] Author Affiliations
Kuo-Liang Chung

National Taiwan University of Science and Technology, Department of Computer Science and Information Engineering, No. 43, Section 4, Keelung Road, Taipei, 10672 Taiwan

Wei-Jen Yang

National Taiwan University of Science and Technology, Department of Computer Science and Information Engineering, No. 43, Section 4, Keelung Road, Taipei, 10672 Taiwan

Chyou-Hwa Chen

National Taiwan University of Science and Technology, Department of Computer Science and Information Engineering, No. 43, Section 4, Keelung Road, Taipei, 10672 Taiwan

Hong-Yuan Mark Liao

Academia Sinica, Institute of Information Science, No. 128, Section 2, Academia Road, Taipei, 11529 Taiwan

Sheng-Mao Zeng

National Taiwan University of Science and Technology, Department of Computer Science and Information Engineering, No. 43, Section 4, Keelung Road, Taipei, 10672 Taiwan

J. Electron. Imaging. 20(2), 023011 (May 24, 2011). doi:10.1117/1.3586799
History: Received November 05, 2010; Revised March 30, 2011; Accepted April 13, 2011; Published May 24, 2011; Online May 24, 2011
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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.

© 2011 SPIE and IS&T

Topics

Video

Citation

Kuo-Liang Chung ; Wei-Jen Yang ; Chyou-Hwa Chen ; Hong-Yuan Mark Liao and Sheng-Mao Zeng
"Efficient chroma subsampling strategy for compressing digital time delay integration mosaic video sequences in H.264/AVC", J. Electron. Imaging. 20(2), 023011 (May 24, 2011). ; http://dx.doi.org/10.1117/1.3586799


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