The High-Resolution Rate-Distortion Function under the Structural Similarity Index

被引:4
|
作者
Ostergaard, Jan [1 ]
Derpich, Milan S. [2 ]
Channappayya, Sumohana S. [3 ]
机构
[1] Aalborg Univ, Dept Elect Syst, DK-9220 Aalborg, Denmark
[2] Univ Tecn Federico Santa Maria, Dept Elect Engn, Valparaiso 2390123, Chile
[3] PacketVideo Corp, San Diego, CA 92121 USA
关键词
Image Processing; Information Technology; Recent Result; Quantum Information; Similarity Index;
D O I
10.1155/2011/857959
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We show that the structural similarity (SSIM) index, which is used in image processing to assess the similarity between an image representation and an original reference image, can be formulated as a locally quadratic distortion measure. We, furthermore, show that recent results of Linder and Zamir on the rate-distortion function (RDF) under locally quadratic distortion measures are applicable to this SSIM distortion measure. We finally derive the high-resolution SSIM-RDF and provide a simple method to numerically compute an approximation of the SSIM-RDF of real images.
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页数:7
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