TY - JOUR
T1 - Restoration of images degraded by extreme mechanical vibrations
AU - Hadar, O.
AU - Adar, Z.
AU - Cotter, A.
AU - Kopeika, N. S.
N1 - Funding Information:
This research was supported partially by The Office of Science and The Arts in Jerusalem. Israel and by the Paul Ivanier Center for Robotics and Production Management at this university. It was also partially supported by a SPIE Education grant for the vibration sensor.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - A method of numerically calculating the optical transfer function appropriate to any type of image motion and vibration, including random, has been recently developed. This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restoration from blur deriving from any type of image motion, including random displacement. Here, image restorations of actual physically degraded images are presented, based on a constrained least squares improvement of the original Wiener filter. Even for extreme vibrations where the blur extent is much larger than the blurred detail, restoration is quite complete. The key to restoration is the determination of the optical transfer function unique to the particular image motion and vibration causing the blur. Results are also presented for low vibration frequency motion of random blur extent, as well as for high vibration frequencies.
AB - A method of numerically calculating the optical transfer function appropriate to any type of image motion and vibration, including random, has been recently developed. This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restoration from blur deriving from any type of image motion, including random displacement. Here, image restorations of actual physically degraded images are presented, based on a constrained least squares improvement of the original Wiener filter. Even for extreme vibrations where the blur extent is much larger than the blurred detail, restoration is quite complete. The key to restoration is the determination of the optical transfer function unique to the particular image motion and vibration causing the blur. Results are also presented for low vibration frequency motion of random blur extent, as well as for high vibration frequencies.
KW - Image restoration optomechanics
KW - Motion
KW - Optical transfer function
KW - Vibrations
UR - http://www.scopus.com/inward/record.url?scp=0031153657&partnerID=8YFLogxK
U2 - 10.1016/S0030-3992(97)00002-9
DO - 10.1016/S0030-3992(97)00002-9
M3 - Article
AN - SCOPUS:0031153657
SN - 0030-3992
VL - 29
SP - 171
EP - 177
JO - Optics and Laser Technology
JF - Optics and Laser Technology
IS - 4
ER -