Title :
Blind full reference quality assessment of poisson image denoising
Author :
Chen Zhang ; Hirakawa, K.
Author_Institution :
Electr. & Comput. Eng., Univ. of Dayton, Dayton, OH, USA
Abstract :
The distribution of real camera sensor is well approximated by Poisson, and the estimation of the light intensity signal from the Poisson count data plays a prominent role in digital imaging. It is highly desirable for imaging devices to carry the ability to assess the performance of Poisson image restoration. Drawing on a new category of image quality assessment called corrupted reference image quality assessment (CR-QA), we develop a computational technique for predicting the quality score of the popular structural similarity index (SSIM) without having the direct access to the ideal reference image. We verified via simulation that the CR-SSIM scores indeed agrees with the full reference scores; and the visually optimal denoising experiments performed on real camera sensor data give credibility to the impact CR-QA has on real imaging systems.
Keywords :
Poisson distribution; cameras; image denoising; image intensifiers; image restoration; CR-QA; CR-SSIM; Poisson count data; Poisson image denoising; Poisson image restoration performance; blind full reference score quality assessment; camera sensor data distribution; computational technique; corrupted reference image quality assessment; digital imaging device; light intensity signal estimation; quality score prediction; structural similarity index; Cameras; Estimation; Image denoising; Measurement; Noise reduction; Wavelet transforms; Image denoising; image quality assessment;
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
DOI :
10.1109/ICIP.2014.7025550