Camera auto-calibration system
AssigneeNortek Security & Control LLC
InventorChandan Gope
Life of this patent
Estimating the term…
Abstract
A seed camera disposed a first location is manually calibrated. A second camera, disposed at a second location, detects a physical marker based on predefined characteristics of the physical marker. The physical marker is located within an overlapping field of view between the seed camera and the second camera. The second camera is calibrated based on a combination of the physical location of the physical marker, the first location of the seed camera, the second location of the second camera, a first image of the physical marker generated with the seed camera, and a second image of the physical marker generated with the second camera.
Claims20
A computer-implemented method comprising:
- identifying a reference object depicted in a second image captured with a second camera that is disposed at a second location, the second camera uncalibrated at the second location;
- computing calibration parameters of the second camera based on the second image and a first image captured with a first camera, the first camera calibrated and disposed at a first location, the reference object located within an overlapping field of view between the first camera and the second camera;
- and
- calibrating the second camera based on the calibration parameters of the second camera.
A computing apparatus, the computing apparatus comprising:
- a processor;
- and
- a memory storing instructions that, when executed by the processor, configure the apparatus to perform operations comprising:
- identifying a reference object depicted in a second image captured with a second camera that is disposed at a second location, the second camera uncalibrated at the second location;
- computing calibration parameters of the second camera based on the second image and a first image captured with a first camera, the first camera calibrated and disposed at a first location, the reference object located within an overlapping field of view between the first camera and the second camera;
- and
- calibrating the second camera based on the calibration parameters of the second camera.
A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a computer, cause the computer to perform operations comprising:
- identifying a reference object depicted in a second image captured with a second camera that is disposed at a second location, the second camera uncalibrated at the second location;
- computing calibration parameters of the second camera based on the second image and a first image captured with a first camera, the first camera calibrated and disposed at a first location, the reference object located within an overlapping field of view between the first camera and the second camera;
- and
- calibrating the second camera based on the calibration parameters of the second camera.
Dependencies are inferred from the claim text.