Edge and line detection in multidimensional noisey, imagery data

Details Edge and line detection in multidimensional noisey, imagery data Edge and line detection in multidimensional noisey, imagery data

1982-07-02

1985-02-12

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 22, 382 27, G06K 956

Patent

active

044995989

ABSTRACT:
A machine process for identification and extraction of magnitude and direction of edges and lines in noisey multidimensional imagery data. A digital picture function is viewed as a sampling of the underlying reflectance function of the objects in the scene or pattern with noise added to the true function values. The edges or lines relate to those places in the image where there are jumps in the values of the function or its derivatives. By expressing the function in some parametric form, the edges or line may by inferred from the values of the parameters.

REFERENCES:
patent: 3609685 (1971-09-01), Deutsch
patent: 4020463 (1977-04-01), Himmel
Holdermann et al., "Processing of Gray-Scale Pictures", Computer Graphics and Image Processing, vol. 1, No. 1, Apr. 1972, pp. 66-80.
Sakai et al., "Extraction of Invariant Picture Sub-Structures by Computer", Comp. Graphics and Image Process, vol. 1, No. 1, Apr. 1972, pp. 81-96.

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