System for detecting an edge of an image

Details System for detecting an edge of an image System for detecting an edge of an image

1993-12-28

1995-08-22

Boudreau, Leo H.

Image analysis

Pattern recognition

Feature extraction

382165, G06K 948

Patent

active

054447984

ABSTRACT:
A system for correctly detecting an edge of an image in which a first set of edges are corrected by a second set of edges which are detected as errors between an original image and a reproduced image obtained using the first set of edges. The edges may be in luminance components or lamellar chrominance components of a color image. A third set of edges obtained by applying a smaller threshold to the original image may be used to refine the second set of edges.

REFERENCES:
patent: 4618989 (1986-10-01), Tsukune et al.
patent: 5126834 (1992-06-01), Enomoto et al.
patent: 5126838 (1992-06-01), Ohsawa et al.
patent: 5148501 (1992-09-01), Enomoto et al.
Enomoto, H. et al., "Vector Representation Scheme of High Quality Picture", Signal Processing of HDTV, II at the Third International Workshop in HDTV, Sep. 1, 1989, pp. 863-870.
San-oh T. et al., "Hierarchical Encoding of Color Images with Multi-Stage BTC Scheme", Research Reports of Kogakuin University, pl No. 64, apr. 1988, pp. 282-289.
Carlsson, Stefan, "Sketch Based Coding of Grey Level Images", signal Processing, vol. 15, No. 1, Jul. 188, pp. 57-83.

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