Title :
SSIM performance limitation of linear equalizers
Author :
Li Chai ; Yuxia Sheng ; Jingxin Zhang
Author_Institution :
Sch. of Inf. Sci. & Eng., Wuhan Univ. of Sci. & Technol., Wuhan, China
Abstract :
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.
Keywords :
equalisers; image processing; mean square error methods; MSE; SSIM performance limitation; blurring filter; linear equalizer; maximal SSIM index computation; minimal mean square error; structural similarity criteria; zero mean image; Educational institutions; Equalizers; Image restoration; Indexes; Optimization; Signal to noise ratio; Structure similarity; image restoration; linear equalizer; performance limitation;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location :
Florence
DOI :
10.1109/ICASSP.2014.6853791
