18 July 1988 Hybrid Techniques For Postal Address Location
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Abstract
Many real-world pattern recognition problems entail location of an image within a very cluttered environment. Hybrid processing can be valuable in such a situation by using the high-speed parallelism inherent in optical processing for the feature extraction step, since feature extraction is often the most time-consuming operation to perform digitally. The work reported here takes such an approach for finding addresses on cluttered mail. Two optical systems, a coherent spatial filtering system and an incoherent correlation system, are each discussed for use in combination with digital image processing techniques. Examples of mail processed and statistical results are presented.
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Keith Mersereau, Keith Mersereau, Mark Kuhner, Mark Kuhner, Daniel Grieser, Daniel Grieser, } "Hybrid Techniques For Postal Address Location", Proc. SPIE 0939, Hybrid Image and Signal Processing, (18 July 1988); doi: 10.1117/12.947057; https://doi.org/10.1117/12.947057
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