Method and systems for scanning and inspecting images

  • US 4,979,029 A
  • Filed: 03/27/1990
  • Issued: 12/18/1990
  • Est. Priority Date: 03/11/1963
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for inspecting an image field to determine if an select image phenomenon is present in said image field, comprising:

  • (a) scanning an image field containing at least one optically contrasting image portion which is detectable with an electro-optical scanning means,(b) generating first electrical signals which vary in accordance with variations in the optical characteristics of the image field scanned,(c) analyzing said first electrical signals and generating first information signals corresponding to the optical characteristics of the image field scanned,(d) electrically comparing said first information signals with signals from recordings in a memory which are indicative of said select image phenomenon, and,(e) generating digital signals indicative of the presence of said select image phonomenon in said scanned image field.

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