https://scholars.lib.ntu.edu.tw/handle/123456789/152323
標題: | Building a pseudo object-oriented very low bit-rate video coding system from a modified optical flow motion estimation algorithm | 作者: | Ku, Chung-Wei Chiu, You-Ming LIANG-GEE CHEN Yung-Pin Lee |
公開日期: | 五月-1996 | 卷: | 4 | 起(迄)頁: | 2064-2067 | 來源出版物: | International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96 | 摘要: | In this paper, a modified optical flow algorithm (MOFA) is proposed for the development of a very low bit-rate video coding system. Another edge preserving constraint and pyramid approach are suggested to generate an accurate motion field and reduce the possibility of trapped in local minimum respectively. Post-processing schemes are also designed to eliminated the problems for special regions. Compared with other motion estimation algorithms, the proposed method gives more exact estimation in terms of PSNR and subjective view. The arbitrarily shaped transform of motion field is then selected to further remove spatial redundancy. According to some primary simulation results, most of the test sequences are compressed into 16 Kbps or lower with excellent picture quality. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/2007041910031980 | DOI: | 10.1109/ICASSP.1996.545724 |
顯示於: | 電機工程學系 |
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00545724.pdf | 388.8 kB | Adobe PDF | 檢視/開啟 |
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