发明名称 |
Method of matching image features with reference features |
摘要 |
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. |
申请公布号 |
US9400941(B2) |
申请公布日期 |
2016.07.26 |
申请号 |
US201114240988 |
申请日期 |
2011.08.31 |
申请人 |
Metaio GmbH |
发明人 |
Kurz Daniel;Meier Peter |
分类号 |
G06K9/36;G06K9/62;G06K9/46;G06T7/20;G06T7/00 |
主分类号 |
G06K9/36 |
代理机构 |
Blank Rome LLP |
代理人 |
Blank Rome LLP |
主权项 |
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. |
地址 |
Munich DE |