SSIM performance limitation of linear equalizers

The performance limitation of linear equalizers is studied for the structural similarity (SSIM) criteria. Given a blurring filter and an image with zero mean, the closed form formula is obtained to compute the maximal SSIM index and the corresponding optimal linear equalizer. The formula shows that...

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Bibliographic Details
Published in2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) pp. 1220 - 1224
Main Authors Li Chai, Yuxia Sheng, Jingxin Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2014
Subjects
Educational institutions
Equalizers
Image restoration
Indexes
linear equalizer
Optimization
performance limitation
Signal to noise ratio
Structure similarity
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Summary:The performance limitation of linear equalizers is studied for the structural similarity (SSIM) criteria. Given a blurring filter and an image with zero mean, the closed form formula is obtained to compute the maximal SSIM index and the corresponding optimal linear equalizer. The formula shows that the equalizer with maximal SSIM index is equal to the one with minimal mean square error (MSE) multiplied by a positive real number. Numerical examples are given to demonstrate the theoretical results.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2014.6853791