Position detector and attitude detector
First Claim
1. A position detector for detecting a position of a target point on a given plane having a plurality of characteristic points, the number of which is greater than a predetermined number, comprising:
- 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, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image plane; and
a processor that calculates the position of the target point on the basis of the identified positions of the predetermined number of the characteristic points on the image plane.
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Accused Products
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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Citations
26 Claims
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1. A position detector for detecting a position of a target point on a given plane having a plurality of characteristic points, the number of which is greater than a predetermined number, comprising:
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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, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image plane; and
a processor that calculates the position of the target point on the basis of the identified positions of the predetermined number of the characteristic points on the image plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A position detector for detecting a position of a target point in a display on a given plane comprising:
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a controller that adds a known standard to the display on the given plane;
an image sensor having an image plane on which an image of the display on the given plane is formed with an image of the standard included, a point in the image of the display which is formed at a predetermined position of the image plane corresponding to the target point to be located in the display on the given plane;
an image processor that identifies the image of the standard on the image plane;
a processor that calculates the position of the target point on the basis of the identified image of the standard on the image plane.
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14. A position detector for detecting a position of a target point on a given plane comprising:
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a controller that generates a first display and a second display on the given plane with the relative positions between both the displays predetermined;
an image sensor having an image plane on which an image of the first display and an image of the second display are capable of being formed, a point in the image of the first display which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the image of the second display on the image plane;
a processor that calculates the position of the target point on the basis of the identified image of the second display on the image plane.
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15. A position detector for detecting a position of a target point on a given plane having a plurality of characteristic points comprising:
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an image sensor having an image plane on which an image of the given plane is formed with the characteristic points included in the image, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image plane, the image processor identifying the positions with at least one of the characteristic points distinguished from the others; and
a processor that calculates the position of the target point on the basis of the identified positions of the characteristic points on the image plane. - View Dependent Claims (16)
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17. A position detector for detecting a position of a target point on a given plane comprising:
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a controller that generates a plurality of characteristic points on the given plane, at least one of the characteristic points being distinguished from the others;
an image sensor having an image plane on which an image of the given plane is formed with the characteristic points included in the image, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image; and
a processor that calculates the position of the target point on the basis of the identified positions of the characteristic points on the image plane. - View Dependent Claims (18, 19, 20)
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21. A position detector for detecting a position of a target point on a given plane having a plurality of characteristic points comprising:
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an image sensor having an image plane on which an image of the given plane is formed with the characteristic points included in the image, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image, the image processor including a calculator that 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 to identify the positions of the characteristic points; and
a processor that calculates the position of the target point on the basis of the identified positions of the characteristic points on the image plane. - View Dependent Claims (22, 23)
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24. A position detector for detecting a position of a target point on a given plane having a plurality of characteristic points comprising:
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an image sensor having an image plane on which an image of the given plane is formed with the characteristic points included in the image, a point of the image which is formed at a predetermined position of the image plane corresponding to the target point to be located on the given plane;
an image processor that identifies the positions of the characteristic points on the image, the image processor includes a trigger that causes the identification of the positions of the characteristic points with the image of the target point formed at the predetermined position of the image plane; and
a processor that calculates the position of the target point on the basis of the identified positions of the characteristic points on the image plane. - View Dependent Claims (25)
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26. An attitude detector for detecting an attitude of a given plane comprising:
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a trigger;
a controller that generates a plurality of characteristic points on the given plane in synchronism with the trigger;
an image sensor having an image plane on which an image of the given plane is formed with the characteristic points included in the image;
an image processor that identifies the positions of the characteristic points on the image, the identification of the positions of the characteristic points being caused in synchronism with the trigger;
a processor that calculates the attitude of the given plane on the basis of the identified positions of the characteristic points on the image plane.
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Specification