New noise-suppression technique in photorefractive crystals.
On the basis of the idea that signal gratings have a faster formation rate than noise gratings and signal gratings have a slower erasure rate than noise gratings under the same erasing beam, we report a new technique to suppress or eliminate the noise in image processing in photorefractive crystals. A general theoretical analysis and experimental results in LiNbO(3):Fe crystals are given.
Zhang
G
G
Liu
S
S
Tian
G
G
Xu
J
J
Sun
Q
Q
Zhang
G
G