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Constant Rate Control for Motion JPEG2000 Jun HOU Xiangzhong FANG Haibin YIN Jiliang LI Publication IEICE TRANSACTIONS on Information and Systems Vol.E89-D No.10 pp.2690-2692 Publication Date: 2006/10/01 Online ISSN: 1745-1361 DOI: 10.1093/ietisy/e89-d.10.2690 Print ISSN: 0916-8532 Type of Manuscript: LETTER Category: Image Processing and Video Processing Keyword: motion JPEG2000, constant rate control, RD slope, cutoff RD slope threshold, Full Text: PDF(187.1KB)>>
Summary: The paper proposes a constant bit rate (CBR) control algorithm for motion JPEG2000 (MJ2). In MJ2 coding, every frame can be coded at similar target bitrate due to the accurate rate control feature. Moreover, frames of the same scene have the similar rate-distortion (RD) characters. The proposed method estimates the initial cutoff threshold of the current frame according to the previous frame's RD information. This iterative method reduces computational cost significantly. As opposed to previous algorithms, it can be used at any compression ratio. Experiments show that the performance is comparable to normal JPEG2000 coding. | ||||||||||
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