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Visual attention system

  • US 6,934,415 B2
  • Filed: 10/16/2001
  • Issued: 08/23/2005
  • Est. Priority Date: 02/17/2000
  • Status: Active Grant
First Claim
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1. A method of processing visual image, for identifying areas of visual attention, comprising:

  • storing an image as an array of pixels, each pixel having a value;

    selecting test pixels from the array;

    for each text pixel;

    selecting one or more neighbor groups of pixels neighboring the test pixel;

    selecting comparison pixels from the array;

    identifying a group of pixels neighboring a selected comparison pixel having the same respective positional relationships to the comparison pixel as a selected neighbor group of pixels has to the test pixel;

    comparing the values of the selected neighbor group with the values of the identified group in accordance with a predetermined match criterion, and generating a measure of visual attention for each test pixel, in dependence upon the number of comparisons made for that test pixel for which the comparison results in a mismatch.

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