Method and apparatus for image edge detection

Details Method and apparatus for image edge detection Method and apparatus for image edge detection

2011-07-26

2011-07-26

Le, Vu (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C382S166000

Reexamination Certificate

active

07986841

ABSTRACT:
An image edge detection method includes: classifying a plurality of candidate directions of an image region into a first direction set and at least one second direction set; computing a gradient for each candidate direction of the first direction set to obtain a first gradient set; determining if the first gradient set satisfies the conditions that one edge direction exists in the first direction set; and if the first gradient set does not satisfy the conditions, determining that none of the plurality of candidate directions is the edge direction of the image region.

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