Abstract

The lensless shadow-casting technique for coded pattern processing usually accommodates two inputs at a time to perform desired logical operations in parallel. A method of binary encoding is proposed that can accommodate multiple input patterns for simultaneous processing. With the proposed multiple-input a carry-look-ahead technique of binary addition is developed that requires fewer processing steps encoding the conventional ripple-carry method. Experimental results for a few logic-processing operations than are included to establish the validity of the proposed technique.

© 1994 Optical Society of America

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