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Segmentation of image features using hierarchical analysis of multi-valued image data and weighted averaging of segmentation results

  • US 6,075,875 A
  • Filed: 09/30/1996
  • Issued: 06/13/2000
  • Est. Priority Date: 09/30/1996
  • Status: Expired due to Term
First Claim
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1. A method of segmenting an arbitrary first image feature in a selected video image frame from an adjacent second image feature in the selected video image frame, the arbitrary first image feature having plural pixels of a first spatial image characteristic and motion relative to the second image feature between the selected video image frame and a preceding video image frame, and the second image feature having plural pixels and a second spatial image characteristic different from the first image characteristic, comprising:

  • obtaining a motion representation of corresponding pixels in the selected video image frame and the preceding video image frame;

    segmenting the first and second video image features according to the motion representation to form first and second motion segmented video image features;

    segmenting the first and second video image features according to the respective first and second spatial image characteristics to form first and second spatially segmented video image features; and

    forming jointly segmented first and second video image features as a weighted sum of the first and second motion segmented video image features and the first and second spatial segmented video image features;

    wherein the first and second motion segmented image features are computed independently from the first and second spatial segmented video image features.

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