Abstract
Approaches to the prototype information processing system of imaging seeker (PIPSIS) with an Infrared Focal Plane Array (IRFPA) sensor and custom image processing hardware are described. The prototype system consists of general digital signal processors and specific infrared image processing hardware. An intelligent infrared image processing software with multiple tracking algorithms of projection, label and correlation has been developed in consideration of the specific needs of the seeker system. In an effort to compensate for the photoresponse nonuniformity in the IRFPA sensor, an improved piecewise-linear nonuniformity correction procedure is investigated. According to the environmental characteristics of imaging seeker, analog signal pre-processing and image sub-regions segmenting are considered. Experimental results show that PIPSIS could provide maximum track range, more robust tracking, and better false-target discrimination.
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