Image region detection method, recording medium, and device...

Details Image region detection method, recording medium, and device... Image region detection method, recording medium, and device...

2007-04-26

2010-10-12

Chang, Jon (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C382S199000, C382S202000, C382S203000

Reexamination Certificate

active

07813553

ABSTRACT:
Using an image region detection method according to the present invention, the detection of sides in the four directions (vertical and horizontal directions) is performed on the basis of results of edge detection performed on lines having a particular width, starting from an inner point toward the periphery of the quadrangular region in an input image, and the shape and the four corners of the quadrangle formed by the detected four sides are verified. Thereby, when there is a side that has been falsely detected, redetection on sides that are closer to the periphery than the side that has been detected falsely is performed, such that the quadrangular region can be formed at high speed.

REFERENCES:
patent: 6049636 (2000-04-01), Yang
patent: 6738154 (2004-05-01), Venable
patent: 6853751 (2005-02-01), Milligan et al.
patent: 2002/0154121 (2002-10-01), Ogawa et al.
patent: 2003/0095709 (2003-05-01), Zhou
patent: 2004/0012679 (2004-01-01), Fan
patent: 2004/0165786 (2004-08-01), Zhang et al.
patent: 2005/0207652 (2005-09-01), Albertelli et al.
patent: 2005/0226534 (2005-10-01), Moroo et al.
patent: 2008/0170784 (2008-07-01), Guerzhoy et al.
patent: 2005-182164 (2005-07-01), None
patent: 2005-277732 (2005-10-01), None
patent: 98/31136 (1998-07-01), None
Extended European Search Report issued in corresponding European Patent Application No. 07106459.6; dated May 29, 2008.

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