White Light Image Processing With Iron-Doped LiNbO3

R. Grousson; S. Mallick

doi:10.1117/12.958984

15 May 1981 White Light Image Processing With Iron-Doped LiNbO₃

R. Grousson, S. Mallick

Proceedings Volume 0236, 1980 European Conf on Optical Systems and Applications; (1981) https://doi.org/10.1117/12.958984
Event: 1980 European Conference on Optical Systems and Applications, 1980, Utrecht, Netherlands

Abstract

The ferro-electric crystals such as Lithium Niobate have been extensively employed for high capacity information storage. A few image processing operations have also been carried out with these recording materials. In all of these operations , coherent light has been used for both writing and reading the information. In an effort to increase the S/N ratio, we have studied an experimental arrangement in which a white light source of limited dimensions has been used for both recording and reading. The signals to be treated are in the form of realamplitude transparencies. With our technique we have obtained the sum and difference of two signals. Contrast enhancement can also be achieved . The two sianals are suitably modulated and are recorded once for all and the different operations are carried out by different manipulations at the reading stage. A further advantage of our system is that the output information can be displayed in color. The writing and reading processes are explained in the following paragraphs.

Citation Download Citation

R. Grousson and S. Mallick "White Light Image Processing With Iron-Doped LiNbO₃", Proc. SPIE 0236, 1980 European Conf on Optical Systems and Applications, (15 May 1981); https://doi.org/10.1117/12.958984

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