Rectilinear object image matcher

Details Rectilinear object image matcher Rectilinear object image matcher

1991-03-20

1993-11-23

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 1, 358109, G06K 948

Patent

active

052651738

ABSTRACT:
A process for extracting the precise perimeter of buildings from down-looking terrain images. The process works for any rectilinear building shape, and no restrictions are placed on the orientation or scale of the buildings within an image. The process has the advantages of robustness and execution speed. The process is robust in that it can extract building perimeters from a digitized image in the presence of multiple noise sources. The execution speed is proportional to N+M, where the size of the image is N by M pixels.

REFERENCES:
patent: 3636513 (1972-01-01), Tisdale
patent: 4490848 (1984-12-01), Beall et al.
patent: 4499598 (1985-02-01), Chittineni
patent: 4783828 (1988-11-01), Sadjadi
patent: 4974077 (1990-11-01), Kusaba
patent: 5007098 (1991-04-01), Kumagai
patent: 5093869 (1992-03-01), Alves et al.

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