Method and device for the real-time localization of rectilinear

Details Method and device for the real-time localization of rectilinear Method and device for the real-time localization of rectilinear

1991-07-22

1993-08-03

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

382 27, 382 41, G06K 948

Patent

active

052336700

ABSTRACT:
Apparatus and method to localize rectilinear contours in a digitized image for recognizing shapes at a scene. The gradient of the gray level function of the image at the position of each pixel is determined, and those pixels which constitute a contour pixel are identified. The identified contour pixels are complemented with filler pixels where discontinuities are found. The neighborhood of pixels about a contour pixel is compared with a series of characteristic pixel configurations to determine if a correspondence exists with the characteristic configurations. In this way, rectilinear contour pixels are identified.

REFERENCES:
patent: 4843630 (1989-06-01), Catros et al.
patent: 4910786 (1990-03-01), Eichel
patent: 4965842 (1990-10-01), Crossley et al.
patent: 5050227 (1991-09-01), Furusawa et al.
patent: 5068908 (1991-11-01), Inoue et al.
patent: 5142592 (1992-08-01), Moler

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