Design Consideration for Miniature Optical Correlation Systems that Use ofPixelated Input and Filter Transducers

摘要

Miniature optical correlators offer many advantages to the image processing andpattern recognition community, including portability, modularity, and possible field deployability. Indeed, computer-controlled miniature correlators that use pixelated input and filter transducers such as magneto-optic spatial light modulators (MOSLMs) or liquid crystal displays (LCDs) can be designed and built as powerful, special-purpose portable correlators for specific image processing and recognition applications. This paper presents a few important design considerations such as filter design, minimization of the overall correlators length, and the effect of aberrations on system performance. Two working prototype miniature binary phase-only filter (BPOF) correlators that use MOSLMs