Invention Grant
- Patent Title: System and method for optimal camera calibration
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Application No.: US16653959Application Date: 2019-10-15
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Publication No.: US11657535B2Publication Date: 2023-05-23
- Inventor: Feng Hu , Yuzhuo Ren , Niranjan Avadhanam , Ankit Pashiney
- Applicant: NVIDIA Corporation
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Taylor English Duma L.L.P.
- Main IPC: G06T7/80
- IPC: G06T7/80 ; G06T7/70 ; H04N17/00 ; G06F3/14

Abstract:
Systems and methods for automatic camera calibration without using a robotic actuator or similar hardware. An electronic display screen projects an image of a simulated three-dimensional calibration pattern, such as a checkerboard, oriented in a particular pose. The camera captures an image of the calibration pattern that is displayed on the screen, and this image together with the transform of the simulated three-dimensional calibration pattern are used to calibrate the camera. Multiple different pictures of different poses are employed to determine the optimal set of poses that produces the lowest reprojection error. To aid in selecting different poses, i.e., spatial positions and orientations of the simulated three-dimensional calibration pattern, poses may be selected from only that portion of the camera's field of view which is expected to be typically used in operation of the camera.
Public/Granted literature
- US20210110575A1 SYSTEM AND METHOD FOR OPTIMAL CAMERA CALIBRATION Public/Granted day:2021-04-15
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