Patent ID: 11967107
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A method, comprising:
generating map information including a position of a feature point and identification information on an index in an image of a real space captured by a capturing apparatus;
collating the identification information on the index in the generated map information with the identification information on the index in one or more pieces of registered map information, and extracting map information from the one or more pieces of registered map information based on a result of the collation;
presenting a list of the extracted map information;
selecting one piece of map information from the list based on an instruction from a user; and
estimating a position and orientation of the capturing apparatus based on the position of the feature point in the selected map information and the position of the feature point in the generated map information.