Visual Area Coding Technique for Parallel Digital Optical Computing

INTRODUCTION Light has a lot of excellent features for information processing and communication, such as parallelism, high speed propagation, exclusive interference, and so on. We are investigating on potential capability of optical information processing based on digital computing scheme. On the investigation, we are involved in develop of an opt-electronic hybrid computing system called OPALS (optical parallel array logic system). However, considering the status of optics and electronics technologies, we have recognized importance of reviewing overlooked features of optical processing to breakthrough current deadlocked situation in optical computing research. Along with the recognition, we have found that visibility for human being, which is the most intuitive feature of light, has sufficient potential to be the breakthrough. In this study, an implementation of digitized-analog optical computing named visual area coding technique (VACT) [1] is considered as an example of visib