| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing system capable of performing retrieval processing at a higher speed by reducing an operation amount for corresponding point retrieval, and suppressing a decrease in retrieval accuracy of a corresponding point.SOLUTION: A rotation angle around an optical axis of a camera 10 of a photographing object included in an image photographed by the camera 10 is acquired from the direction of the photographing object in an image that obtains a feature point, orientation information and a feature amount stored in a database 40. When coordinate systems between orientation information of a feature point of a photographed image and the orientation information stored in the database are aligned on the basis of the rotation angle, feature points where both orientation information are placed within a predetermined deviation angle range are determined to be feature points to be contrasted. |
