Method for analyzing stored image details

Details Method for analyzing stored image details Method for analyzing stored image details

1980-07-03

1983-02-01

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

3401463AE, G06K 946

Patent

active

043718655

ABSTRACT:
A method for analyzing stored image details for identification purposes is disclosed in which slopes are abstracted from an image to provide three-dimensional recognition information. Data representing light levels of an image are stored in a picture memory device, which is analyzed in a predetermined manner to select absolute illumination magnitudes between fixed locations of the image. This information is directly related to the slope between the locations. Steeper slopes and their corresponding locations are stored as recognition data in a learn mode. In an access mode, the previously-obtained information is utilized to locate new data, and depending upon the degree of correlation therebetween, an indication of recognition is either verified or rejected.

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