发明名称 |
Image measuring apparatus and image measuring method |
摘要 |
Disclosed is an image measuring apparatus including an image capture unit which captures an image of a measurement subject, an import unit which imports the image of the measurement subject which is captured by the image capture unit, a binarization unit which binarizes the image which is imported by the import unit, a contour detection unit which recognizes graphic information in the image which is binarized by the binarization unit and detects a contour of the graphic information, a corner detection unit which detects corners of the graphic information based on the contour which is detected by the contour detection unit, a setting unit which respectively sets edge detection tools on lines of the contour including the corners detected by the corner detection unit and a measurement unit which measures the graphic information by the edge detection tools which are set by the setting unit. |
申请公布号 |
US9140541(B2) |
申请公布日期 |
2015.09.22 |
申请号 |
US201113193214 |
申请日期 |
2011.07.28 |
申请人 |
MITUTOYO CORPORATION |
发明人 |
Kurihara Masaki |
分类号 |
H04N7/18;G01B11/03;G01B11/02;G06T7/60 |
主分类号 |
H04N7/18 |
代理机构 |
Oliff PLC |
代理人 |
Oliff PLC |
主权项 |
1. An image measuring apparatus, comprising:
an image capture unit which captures an image of a measurement subject; an import unit which imports the image of the measurement subject which is captured by the image capture unit; a binarization unit which binarizes the image which is imported by the import unit; a contour detection unit which recognizes graphic information in the image which is binarized by the binarization unit and detects a contour of the graphic information; a corner detection unit which detects corners of the graphic information based on the contour which is detected by the contour detection unit; a setting unit which respectively sets edge detection tools on lines of the contour including the corners detected by the corner detection unit; and a measurement unit which measures the graphic information by the edge detection tools which are set by the setting unit, wherein the setting unit sets the edge detection tools so that a longitudinal center axis of the detection tool respectively substantially overlaps a center portion of a line between adjacent corners detected by the corner detection unit, a length of the center portion corresponding to a length of the respective edge detection tool. |
地址 |
Kawasaki-shi JP |