Method of matching image features with reference features
First Claim
1. A method of matching image features with reference features, comprising:
- providing a current image captured by a capturing device;
providing a set of reference features, wherein each of the reference features comprises at least one first parameter which is at least partially indicative of a position and/or orientation of the reference feature with respect to a global coordinate system, wherein the global coordinate system is an earth coordinate system or an object coordinate system, or which is at least partially indicative of a position of the reference feature with respect to an altitude;
detecting at least one feature in the current image in a feature detection process;
associating, with the detected feature, at least one second parameter which is at least partially indicative of a position and/or orientation of the detected feature with respect to the global coordinate system, or which is at least partially indicative of a position of the detected feature with respect to an altitude; and
matching the detected feature with at least one of the reference features of the set of reference features by determining a similarity measure between the at least one first parameter and the at least one second parameter.
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Abstract
A method of matching image features with reference features comprises the steps of providing a current image, providing a set of reference features, wherein each of the reference features comprises at least one first parameter which is at least partially indicative of a position and/or orientation of the reference feature with respect to a global coordinate system, wherein the global coordinate system is an earth coordinate system or an object coordinate system, or at least partially indicative of a position of the reference feature with respect to an altitude, detecting at least one feature in the current image in a feature detection process, associating with the detected feature at least one second parameter which is at least partially indicative of a position and/or orientation of the detected feature, or which is at least partially indicative of a position of the detected feature with respect to an altitude, and matching the detected feature with a reference feature by determining a similarity measure.
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Citations
25 Claims
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1. A method of matching image features with reference features, comprising:
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providing a current image captured by a capturing device; providing a set of reference features, wherein each of the reference features comprises at least one first parameter which is at least partially indicative of a position and/or orientation of the reference feature with respect to a global coordinate system, wherein the global coordinate system is an earth coordinate system or an object coordinate system, or which is at least partially indicative of a position of the reference feature with respect to an altitude; detecting at least one feature in the current image in a feature detection process; associating, with the detected feature, at least one second parameter which is at least partially indicative of a position and/or orientation of the detected feature with respect to the global coordinate system, or which is at least partially indicative of a position of the detected feature with respect to an altitude; and matching the detected feature with at least one of the reference features of the set of reference features by determining a similarity measure between the at least one first parameter and the at least one second parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer readable medium comprising software code sections adapted to perform a method of matching image features with reference features, comprising:
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providing a current image captured by a capturing device; providing a set of reference features, wherein each of the reference features comprises at least one first parameter which is at least partially indicative of a position and/or orientation of the reference feature with respect to a global coordinate system, wherein the global coordinate system is an earth coordinate system or an object coordinate system, or which is at least partially indicative of a position of the reference feature with respect to an altitude; detecting at least one feature in the current image in a feature detection process; associating with the detected feature at least one second parameter which is at least partially indicative of a position and/or orientation of the detected feature with respect to the global coordinate system, or which is at least partially indicative of a position of the detected feature with respect to an altitude; and matching the detected feature with at least one of the reference features of the set of reference features by determining a similarity measure between the at least one first parameter and the at least one second parameter.
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Specification