Abstract

Although a joint Fourier transform processor is effective for the correlation operation,¹ it can also be used as a generalized coherent image processor.² In this paper we show that blurred photographic images due to linear motion can be restored with a joint transform processor. The major advantage of using the joint transform processor (JTP) for image deblurring must be the avoidance of spatial filter synthesis. In other words, the deconvolution function³ for image deblurring can be directly implemented at the input plane of a JTP, and the difficulty caused by the singularities of an inverse filter can be avoided. To generate a bipolar deconvolution function, we have encoded two sets of π phase shifted sinusoidal gratings of the same spatial frequency.

© 1989 Optical Society of America