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Image quality analysis method and apparatus

  • US 5,687,250 A
  • Filed: 01/12/1995
  • Issued: 11/11/1997
  • Est. Priority Date: 02/14/1994
  • Status: Expired due to Fees
First Claim
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1. Apparatus for use with a machine based imaging system that is operable to scan a plurality of documents within a unit of work, and provides a plurality of images corresponding to each of said documents, said imaging system including means whereby a plurality of anomalous condition flags are set during operation of said imaging system, said apparatus operating to provide a quantitative measure of success of the operation of said imaging system, said apparatus comprising;

  • a first processor operable to determine a numerical image suspiciousness value for each of said plurality of images corresponding to each of said documents, and having an output containing said image suspiciousness values for each of said plurality of images corresponding to each of said documents,a first input to said first processor whereby the importance of each of said flags to image quality of said images is ranked by a flag weighting factor for each of said plurality of images,a second input to said first processor defining which of said flags are set for each of said documents,a second processor operable to determine a numerical document suspiciousness value for each of said documents, and having an output containing said document suspiciousness values,a first input to said second processor connected to said output of said first processor,a second input to said second processor whereby the importance of each of said images is ranked by an image weighting factor,a third processor for determining a numerical unit of work suspiciousness value and having an output containing said unit of work suspiciousness value,a first input to said third processor connected to the output of said second processor, anda second input to said third processor defining values by which said third processor determines whether or not said unit of work is acceptable.

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