Patent ID: 11922659
Assignee: NEC SOLUTION INNOVATORS, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The coordinate calculation method according to claim 7, further comprising:
generating a point cloud data of the object,
in the generating, in case that, in each of a plurality of images including an object, feature points to corresponding to images are extracted, a pair image is selected from the images which the feature points are extracted,
in each of the selected pair images, the three-dimensional coordinates of the location of the camera that has taken the image and the rotation matrix are obtained from the camera matrix calculated in advance for the camera that has taken the image,
the three-dimensional coordinates of the feature points corresponding to both of the selected pair images are calculated by using the three-dimensional coordinates of the camera location and the rotation matrix,
a point cloud data is generated by using the feature points for which the three-dimensional coordinates are calculated.