Coordinate calculating apparatus and coordinate calculating program
First Claim
1. A coordinate calculating apparatus for calculating two object position coordinate points from an image captured by an image capturing apparatus, the two object position coordinate points indicating positions of two predetermined objects whose images to be captured, the positions being on a plane corresponding to the captured image, the apparatus comprising:
- coordinate detecting means of detecting a position coordinate point of an area satisfying a predetermined condition in the captured image for each area;
reference setting means of setting a reference with respect to at least one of a direction connecting two position coordinate points in the captured image and a length between the two position coordinate points;
selection means of, when a plurality of position coordinate points are detected by the coordinate detecting means, with respect to combinations of two position coordinate points among the plurality of position coordinate points, comparing at least one of a direction connecting two position coordinate points in the combinations and a length between the two position coordinate points, with the reference, and selecting a combination of two position coordinate points in the combinations most close to the reference as the two object position coordinate points.
1 Assignment
0 Petitions
Accused Products
Abstract
An object position coordinate computing and selection method and apparatus detects one or more areas satisfying a predetermined criterion in a captured digital image and compares an object-position coordinate point to associate with such areas. When a plurality of such areas have been detected and associated object-position coordinate points have been computed, the coordinate computing method and apparatus sets a reference value based on at least one or both of a direction of a line connecting the first two object-position coordinate points recognized in the image and a length of the line connecting the two object-position coordinate points. The coordinate computing method and apparatus then selects a single pair combination of object-position coordinate points out of the plurality of possible pair combinations of object-position coordinate points that is closest to the set reference value for use as selected object position coordinate points.
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Citations
44 Claims
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1. A coordinate calculating apparatus for calculating two object position coordinate points from an image captured by an image capturing apparatus, the two object position coordinate points indicating positions of two predetermined objects whose images to be captured, the positions being on a plane corresponding to the captured image, the apparatus comprising:
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coordinate detecting means of detecting a position coordinate point of an area satisfying a predetermined condition in the captured image for each area; reference setting means of setting a reference with respect to at least one of a direction connecting two position coordinate points in the captured image and a length between the two position coordinate points; selection means of, when a plurality of position coordinate points are detected by the coordinate detecting means, with respect to combinations of two position coordinate points among the plurality of position coordinate points, comparing at least one of a direction connecting two position coordinate points in the combinations and a length between the two position coordinate points, with the reference, and selecting a combination of two position coordinate points in the combinations most close to the reference as the two object position coordinate points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer readable storage medium storing one or more sequences of one or more processing instructions which when executed by a computer, implement a method for calculating two object position coordinate points from an image captured by an image capturing apparatus, the two object position coordinate points indicating positions of two predetermined objects whose images were captured, the positions being on a plane corresponding to the captured image, the processing instructions causing the computer to execute:
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a reference setting step of setting a reference with respect to at least one of a direction connecting two position coordinate points in the captured image and a length between the two position coordinate points; and a selection step of, with respect to combinations of two position coordinate points among position coordinate points of areas satisfying a predetermined condition in the captured image, comparing at least one of a direction connecting two position coordinate points in the combinations and a length between the two position coordinate points, with the reference, and selecting a combination of two position coordinate points in the combinations most close to the reference as the two object position coordinate points. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of selecting two specific object-position coordinate points from among a plurality of object-position coordinate points corresponding to imaged objects in a digital image acquired by an image capturing apparatus, said object-position coordinate points being on a plane corresponding to the acquired image and being indicative of relative positions of imaged objects in the acquired image, comprising:
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detecting one or more areas in an acquired digital image which satisfy a predetermined criterion and assigning each such area a relative object-position coordinate point designation within the plane of the acquired image; setting as a reference value a direction of a line connecting object-position coordinate points corresponding to two of said areas which are initially detected in the acquired image or a length of said line; using position coordinate points of two of said areas that are initially detected which satisfy said predetermined condition after a predetermined period of time, if no further areas are detected; and
,whenever more than two of said areas are detected in the acquired image and assigned a relative object-position coordinate point designation, comparing the set reference value with at least one of either a direction of a line connecting two object-position coordinate points and a length of a line connecting the two object-position coordinate points for different pair combinations of object-position coordinate points out of possible different remaining combinations of pairs of assigned object-position coordinate points; and selecting one pair of said possible different combinations of assigned object-position coordinate point pairs that has an associated line direction or line length that is closest in value to the set reference value. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An apparatus for selecting specific object-position coordinate points from among a plurality of object-position coordinate points corresponding to imaged objects in an acquired digital image, said object-position coordinate points being on a plane corresponding to the acquired image and being indicative of relative positions of imaged objects in the acquired image, comprising:
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object detection programmed logic circuitry configured to detect one or more areas in a digital image which satisfy a predetermined criterion and assign each such area a relative object-position coordinate point designation within the plane of the acquired image; reference setting detection programmed logic circuitry configured to set as a reference value at least one or both of a direction of a line connecting assigned object-position coordinate points corresponding to two of said areas which are first detected in the acquired image and a length of said line; and reference value comparison programmed logic circuitry configured to compare the set reference value, whenever more than two of said areas are detected in the acquired image and assigned a relative object-position coordinate point designation, with at least one of either a direction of a line connecting two object-position coordinate points and a length of a line connecting the two object-position coordinate points for different pair combinations of object-position coordinate points out of possible available combinations of pairs of assigned object-position coordinate points; and object-position coordinate point pair selection programmed logic circuitry configured to select one pair of possible different combinations of object-position coordinate point pairs that has an associated line direction or line length that is closest in value to the set reference value. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification