Contour detecting apparatus and method, and storage medium...

Details Contour detecting apparatus and method, and storage medium... Contour detecting apparatus and method, and storage medium...

2005-07-19

2005-07-19

Au, Amelia M. (Department: 2623)

Image analysis

Pattern recognition

Feature extraction

C382S203000

Reexamination Certificate

active

06920248

ABSTRACT:
A contour detecting apparatus for accurately detecting a contour of a target object without increasing the detection time is disclosed. The apparatus comprises a section for storing a contour model consisting of nodes, which surrounds at least one target object in a captured image and is used for detecting a contour of the target object; a deforming section for contracting or expanding the contour model by shifting the nodes based on a predetermined rule; a section for calculating a distance between two non-adjacent nodes of the contour model which was deformed by the deforming section, and determining that the contour model is to be split when the calculated distance is equal to or smaller than a predetermined threshold; and a section for splitting the contour model according to a result of the above determination, wherein the splitting operation is executed in the vicinity of said non-adjacent nodes.

REFERENCES:
patent: 5881170 (1999-03-01), Araki et al.
patent: 6636635 (2003-10-01), Matsugu
patent: 8-189809 (1996-07-01), None
patent: 8-329254 (1996-12-01), None

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