8 December 1977 Noncoherent Optical Processing With Two-Pupil Hybrid Systems
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Recent developments in noncoherent optical processing suggest that hybrid incoherent optical/electronic systems represent a viable alternative to coherent optical systems for diffraction-limited parallel processing of two-dimensional signals. Favorable characteristics of incoherent systems include greatly simplified input transducer requirements and a redundancy or multichannel nature that makes them resistent to the blemish noise typical of coherent processors. In this paper we discuss the basic kinds or classes of hybrid optical/electronic methods for bipolar processing of two-dimensional signals using two-pupil optical systems: direct subtraction and carrier, pupil interaction and non-pupil interaction. Tradeoffs and limitations are considered, and a new method for realizing a general bipolar pointspread function with positive-real pupil transparencies is presented.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William T. Rhodes, William T. Rhodes, "Noncoherent Optical Processing With Two-Pupil Hybrid Systems", Proc. SPIE 0118, Optical Signal and Image Processing, (8 December 1977); doi: 10.1117/12.955677; https://doi.org/10.1117/12.955677


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