Initial key word OCR filter results

David P. Casasent; Anand K. Iyer; Gopalan Ravichandran

doi:10.1117/12.25335

1 February 1991 Initial key word OCR filter results

David P. Casasent, Anand K. Iyer, Gopalan Ravichandran

Proceedings Volume 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition; (1991) https://doi.org/10.1117/12.25335
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States

Abstract

Initial simulated optical correlation filter results to locate key words in destination address blocks on machine printed United States Postal Service (USPS) envelope mail are presented. The filters used are SDF MACE G-MACE and MINACE. These filters provide sharp correlation peaks allow controlled tolerance of intra-class (pitch font) variations and improved false class rejection (using symbolic filters).

Citation Download Citation

David P. Casasent, Anand K. Iyer, and Gopalan Ravichandran "Initial key word OCR filter results", Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); https://doi.org/10.1117/12.25335

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