Title :
A spatially variant model for imaging through cataract
Author :
Sameti, Mohammad ; Jernigan, M. Ed
Author_Institution :
Dept. of Syst. Design Eng., Waterloo Univ., Ont., Canada
Abstract :
A spatially variant model is developed to simulate cataract degradation on retinal images, based on the results obtained from studying a pair of images taken from the same retina, one before cataract surgery and the other after surgery. In this model the blurring effect of the cataract on the retinal images is considered. The restoration process was implemented by applying the inverse of the model on the degraded image. Results showing the effect of the spatially variant cataract model as well as the performance of the corresponding restoration filter for enhancement of retinal images are presented
Keywords :
eye; image restoration; medical image processing; physiological models; cataract degradation; image restoration filter; retinal image enhancement; retinal images; spatially variant cataract model; Degradation; Design engineering; Image restoration; Image segmentation; Inverse problems; Lenses; Retina; Surgery; Systems engineering and theory; Wiener filter;
Conference_Titel :
Systems, Man, and Cybernetics, 1994. Humans, Information and Technology., 1994 IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-2129-4
DOI :
10.1109/ICSMC.1994.400271
