To markedly enhance correction accuracy insusceptible to robot controlling accuracy and resolution accuracy by a method wherein a distance between a visual sensing means and an object is changed and positions and angles of two points are measured three times so that correction method for the position and angle is formed.
In a position detecting method for an object by image processing, positions of two points of an object 1 and an angle of a line passing through the two points with respect to a reference line are obtained by image recognition using a visual sensing means 2. Next, the visual sensing means 2 is moved such that obtained positions and angle is equal to reference positions and a reference angle. On the moved position a, positions and angle of the two points are detected again. Next, a distance β between the visual sensing means 2 and object 1 are changed, then the positions of the two points and the angle are detected again, thereby correcting the positions and angle.
KIMURA YOSHIAKI
SAKAMOTO TOSHIHARU
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