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Electro-optical system for correlating and integrating image data from frame-to-frame

  • US 4,396,903 A
  • Filed: 05/29/1981
  • Issued: 08/02/1983
  • Est. Priority Date: 05/29/1981
  • Status: Expired due to Fees
First Claim
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1. An electro-optical system for processing image information of a plurality of frames, sequentially generated from an electro-optical sensor and representative of a field of view thereof, in order to extract and classify candidate object image patterns in said image frames in accordance with a set of reference object image patterns and a signature feature set associated with each reference pattern, said system comprising:

  • means operative to extract image patterns belonging to candidate objects from each of the plurality of sequentially generated frames and to derive a set of signature features associated with each image pattern extracted;

    first means for correlating said image patterns extracted from frame-to-frame to identify extracted image patterns belonging to common candidate objects;

    means for integrating the correlated extracted image patterns belonging to the identified common candidate objects to form a composite image pattern of each candidate object and a composite signature feature set associated therewith;

    second means for correlating a formed composite image signature feature set with the signature feature sets of selected reference object image patterns to generate a corresponding set of correlation values;

    means for generating a threshold correlation value; and

    means operative to classify a candidate object as a reference object based on a comparison between a selected one of said generated correlation values associated with said candidate object and said threshold correlation value.

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