All linear finite-dimensional transformations can be implemented with diffractive optics. Such transformations include general point transforms. A technique for the implementation of general point transforms is considered. This is used to implement two point transforms. The implementation of a 90°-rotation and a Hough transform is discussed. Fresnel diffraction patterns of these implementations are presented.
© 1993 Optical Society of America
Filippus Stefanus Roux, "Implementation of general point transforms with diffractive optics," Appl. Opt. 32, 4972-4978 (1993)