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Postal Address Block Location in Real Time
July 1992 (vol. 25 no. 7)
pp. 34-42

The CEDAR real-time address block location system, which determines candidates for the location of the destination address from a scanned mail piece image, is described. For each candidate destination address block (DAB), the address block location (ABL) system determines the line segmentation, global orientation, block skew, an indication of whether the address appears to be handwritten or machine printed, and a value indicating the degree of confidence that the block actually contains the destination address. With 20-MHz Sparc processors, the average time per mail piece for the combined hardware and software system components is 0.210 seconds. The system located 89.0% of the addresses as the top choice. Recent developments in the system include the use of a top-down segmentation tool, address syntax analysis using only connected component data, and improvements to the segmentation refinement routines. This has increased top choice performance to 91.4%.

Citation:
Paul W. Palumbo, Sargur N. Srihari, Jung Soh, Ramalingam Sridhar, Victor Demjanenko, "Postal Address Block Location in Real Time," Computer, vol. 25, no. 7, pp. 34-42, July 1992, doi:10.1109/2.144438
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