Image analysis – Histogram processing – For setting a threshold
Patent
1981-07-13
1984-08-28
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 21, G06K 956
Patent
active
044688075
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 as abstractions. 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. These abstractions are compared and several are permanently stored. In an access mode, the previously-obtained information is utilized to verify with current data, and depending upon the degree of correlation therebetween, an indication of recognition is either verified or rejected. If current data is better than any of the permanently-stored data, the permanently-stored data is replaced by the current data to update the permanently-stored data.
REFERENCES:
patent: 3581282 (1971-05-01), Altman
patent: 3648240 (1972-03-01), Jacoby et al.
patent: 4107775 (1978-08-01), Ott
patent: 4186378 (1980-01-01), Moulton
patent: 4206441 (1980-06-01), Kondo
patent: 4236082 (1980-11-01), Butler
Boudreau Leo H.
LaRue Adrian J.
Noe George T.
Palmguard Inc.
LandOfFree
Method for analyzing stored image details does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for analyzing stored image details, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for analyzing stored image details will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-881696