Title:
SEGMENT AND ARC DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2013069043
Kind Code:
A
Abstract:
To precisely detect a segment or arc through Hough transformation.
A Hough transformation part 14 performs contour extraction processing on first to third component data 102A to 102C to generate first to third contour data 103A to 103C. Respective pixels of the first to third contour data 103A to 103C have pixel values of 0 to 255. The Hough transformation part 14 performs Hough transformation on respective points of the first to third contour data 103A to 103C. In a Hough table 15, pixel values of the respective points of the first to third contour data 103A to 103C, i.e. values of contour intensity are totaled as addition values. A detection part 16 totally evaluates total values of the respective components to detect a segment or arc.
Inventors:
HASEGAWA HIROSHI
Application Number:
JP2011206004A
Publication Date:
April 18, 2013
Filing Date:
September 21, 2011
Export Citation:
Assignee:
MEGA CHIPS CORP
International Classes:
G06T7/60
Domestic Patent References:
| JPH0869533A | 1996-03-12 | |||
| JPH09251544A | 1997-09-22 | |||
| JP2005285006A | 2005-10-13 | |||
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| JPH0744709A | 1995-02-14 |
Foreign References:
| WO2007000911A1 | 2007-01-04 | |||
| WO2007000911A1 | 2007-01-04 |
Attorney, Agent or Firm:
Hidetoshi Ueba
Takao Matsuyama
Go Sakane
Kawakami Keiko
Takao Matsuyama
Go Sakane
Kawakami Keiko