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上海交通大学应用数学系,上海,200240
纸质出版:2001
移动端阅览
潘旭山, 叶中行. 图像的失真率函数研究[J]. 电子学报, 2001,29(7):990-992.
PAN Xu-shan, YE Zhong-xing. Distortion-Rate Theory for Individual Images[J]. Acta Electronica Sinica, 2001, 29(7): 990-992.
潘旭山, 叶中行. 图像的失真率函数研究[J]. 电子学报, 2001,29(7):990-992. DOI:
PAN Xu-shan, YE Zhong-xing. Distortion-Rate Theory for Individual Images[J]. Acta Electronica Sinica, 2001, 29(7): 990-992. DOI:
对于无限大图像
I定义了一个失真率函数d(R/I
).它是在有限状态编码译码意义下和给定信息率
R时渐近可达的失真下限.本文证明了其编码定理和逆定理.它不必已知I
的概率特性.
For every individual images
I
we define a distortion-rate function
d(R/I
) which is shown to be an asymptotically attainable lower bound on the distortion that can be achieved for
by any finite-state encoder operating at a fixed output rate
R
.This is done by means of a coding theorem and its converse.No probabilistic characterization of
is assumed.
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