Naoki NISHIMURA, Yasuhiro AWATSUJI^1* and Toshihiro KUBOTA

Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
¹Division of Information and Production Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan

(Received May 14, 2003; Accepted August 19, 2003)

Performances of options for arranging data in the input images of digital optical computing are analyzed and evaluated on the basis of the characteristic functions that the authors formularized. The methods for arranging the data are classified into two options: the spatially expanded bit-pattern arrangement (SEPA) and the bit-slice arrangement (BSA). To analyze and evaluate the performance, the options are applied to the parallel operations based on the optical array logic that is a paradigm of digital parallel computing. Processing steps, storage capacity, and scale of the operation kernel required for performing various parallel operations are analyzed as the characteristic functions. The performances of the SEPA and the BSA are evaluated by comparing these functions. The features of each option are clarified and a guideline for choosing the optimal option is proposed to efficiently perform digital parallel optical operations.

Key words: optical computing, digital optical computing, parallel processing, optical data processing

^*E-mail address: awatsuji@dj.kit.ac.jp