Programming of optical array logic. 2: Numerical data processing based on pattern logic.

A new technique for space-variant processing with optical array logic and a new concept for parallel processing called pattern logic are proposed. Optical array logic is a technique for achieving any parallel neighborhood operation by simple coding, optical correlation, and parallel OR operation. Using pattern logic, various kinds of parallel processing can be realized, which can be implemented by optical array logic. Several kinds of numerical data processing are presented to verify the capability of pattern logic.