Patent ID: 11961258
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The calibration method for the optical see-through display as claimed in claim 1, further comprising:
photographing a pattern of the real object of a known size by using a tracking camera and obtaining extrinsic parameters between the tracking camera and the pattern of the real object, wherein a relation between the tracking camera and the image sensing device is calibrated, and obtaining intrinsic parameters of the tracking camera and extrinsic parameters between the tracking camera and the image sensing device; and
transforming a coordinate of a third feature point on the pattern of the real object to a coordinate of an image photographed by the tracking camera, then transforming to a coordinate of an image photographed by the image sensing device, and further transforming to a coordinate of an image of the virtual camera, and lastly transforming to a coordinate of the virtual image displayed by the optical see-through display, wherein a position represented by the coordinate of the virtual image, the third feature point, and the standard position are on a same straight line in a space.