Position detector and attitude detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 2, 2001
app pub date -
Mar 5, 2001
filing date -
Sep 7, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A position of a target point on a given plane or an attitude of a given plane is to be detected. The given plane has a plurality of characteristic points, the number of which is greater than a predetermined number. The detector comprises an image sensor having an image plane on which an image of the given plane is formed with at least the predetermined number of the characteristic points included in the image. The position or the attitude is calculated on the basis of the identified positions of the predetermined number of the characteristic points on the image plane. A controller generates the characteristic points on the given plane. An image processor identifies the positions of the characteristic points with at least one of the characteristic points distinguished from the others. The image processor calculates a difference in the output of the image sensor between a first condition with the characteristic points on the given plane and a second condition with the given plane in a reference state. The identification of the positions of the characteristic points is caused by a trigger functioning with the image of the target point formed at the predetermined position of the image plane.
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