| 一种基于二次变换运动预测的有损分割图轮廓编码 |
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| 引用本文： | 张颖,张兆扬,ZHANG Ying,ZHANG Zhao-yang.一种基于二次变换运动预测的有损分割图轮廓编码[J].上海大学学报(英文版),2000,4(3):214-219. |
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| 作者姓名： | 张颖 张兆扬 ZHANG Ying ZHANG Zhao-yang |
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| 作者单位： | ZHANG Ying，ZHANG Zhao yang School of Communication and Information Engineering，Shanghai University，Shanghai 200072，China |
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| 基金项目： | upported by the National Natural Science Foundation of China
!( 6 95 72 0 2 3)，bytheKeyProjectfromtheShanghaiEducation
Comm |
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| 摘 要： | 1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｔｈｅｉｎｔｅｒｅｓｔｉｎｖｅｒｙｌｏｗｂｉｔ ｒａｔｅｖｉｄｅｏｃｏｄｉｎｇｈａｓｉｎ ｃｒｅａｓｅｄｃｏｎｓｉｄｅｒａｂｌｙｗｉｔｈｔｈｅｃｒｅａｔｉｏｎｏｆｎｅｗｓｅｒｖｉｃｅｓａｎｄａｐｐｌｉｃａｔｉｏｎｓｒｅｑｕｉｒｉｎｇｔｈｉｓｃｌａｓｓｏｆｂｉｔｒａｔｅｓｉｎｔｈｅｉｒｆｕｎｃｔｉｏｎ .Ｗｉｔｈｔｈｉｓｔｒｅｎｄ ,ｏｂｊｅｃｔ ｏｒｉｅｎｔｅｄｖｉｄｅｏｃｏｄｉｎｇｗａｓｆｉｒｓｔｐｒｏｐｏｓｅｄｂｙＭｕｓｍａｎｎｅｔａｌ.ｉｎ 19891 ],ａｎｄｈａｓｂｅｅ…
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| 收稿时间： | 18 January 2000 |
A lossy contour-based representation of segmentation maps using quadratic transformations motion prediction |
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| Ying Zhang,Zhao-yang Zhang.A lossy contour-based representation of segmentation maps using quadratic transformations motion prediction[J].Journal of Shanghai University(English Edition),2000,4(3):214-219. |
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| Authors: | Ying Zhang Zhao-yang Zhang |
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| Institution: | School of Communication and Information Engineering , Shanghai University, Shanghai 200072, China |
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| Abstract: | In the context of object oriented video coding, the encoding of segmentation maps defined by contour networks is particularly critical. In this paper, we present a lossy contour network encoding algorithm where both the rate distortion contour encoding based on maximum operator and the prediction error for the current frame based on quadratic motion model are combined into a optimal polygon contour network compression scheme. The bit rate for the contour network can be further reduced by about 20% in comparison with that in the optimal polygonal boundary encoding scheme using maximum operator in the rate distortion sense. |
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| Keywords: | contour network encoding in the rate distortion sense very low bit rate object oriented video coding |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ |
