Data processing: Pattern recognition: A review: Optical techniques developed to discern military targets are being studied for industrial and commercial applications

Optical pattern-recognition systems " systems that use optical interference to process incoming signals " have long attracted attention because of their highly parallel operation and high speed. Until now, most research in the United States has concentrated on military applications, such as missile guidance and electronic warfare. However, although the emphasis remains primarily on military applications, recent advances in optical system components, system architecture, and pattern-recognition algorithms suggest development of systems with potential commercial applications in robotics, automated product inspection, and other civilian fields.