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System for retrieving images using a database

  • US 6,226,636 B1
  • Filed: 11/20/1998
  • Issued: 05/01/2001
  • Est. Priority Date: 11/20/1998
  • Status: Expired due to Term
First Claim
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1. A method of building a database which stores data corresponding to a plurality of images, wherein for each image, the method comprises the steps of:

  • dividing the image into N (N≧

    1) regions; and

    for each of the N regions;

    calculating a histogram of the region;

    generating a binary representation of the histogram; and

    storing data corresponding to the image in a binary tree based on the binary representation.

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