Auto-calibration for vehicle cameras
AssigneeGM Global Technology Operations LLC
InventorsWei Tong, Shuqing Zeng
Life of this patent
Estimating the term…
Abstract
In various embodiments, methods, systems, and vehicles are provided for calibrating vehicle cameras. In certain embodiments, a vehicle includes a camera, a memory, and a processor. The camera is disposed onboard the vehicle, and is configured to generate a camera image in which an object is detected onboard the vehicle. The memory is configured to store map data relating to the detected object. The processor is disposed onboard the vehicle, and is configured to perform an initial projection using the map data and initial values of calibration parameters for the camera; and update values of the calibration parameters using a comparison of the initial projection with the camera image.
Claims20
A method comprising:
- obtaining a camera image from a camera onboard a vehicle;
- detecting an object in proximity to the vehicle from the camera image;
- obtaining map data relating to the detected object;
- performing, via a processor, an initial projection using the map data and initial values of calibration parameters for the camera;
- and
- updating, via the processor, values of the calibration parameters using a comparison of the initial projection with the camera image.
A system comprising:
- an image module configured to:
- obtain a camera image from a camera onboard a vehicle;
- detect an object in proximity to the vehicle from the camera image;
- and
- obtain map data relating to the detected object;
- and
- a processing module configured to:
- perform, via a processor, an initial projection using the map data and initial values of calibration parameters for the camera;
- and
- update, via the processor, values of the calibration parameters using a comparison of the initial projection with the camera image.
A vehicle comprising:
- a body;
- a propulsion system configured to generate movement of the body;
- a camera disposed onboard the vehicle and configured to generate a camera image in which an object is detected onboard the vehicle;
- a memory configured to store map data relating to the detected object;
- and
- a processor disposed onboard the vehicle and configured to:
- perform an initial projection using the map data and initial values of calibration parameters for the camera;
- and
- update values of the calibration parameters using a comparison of the initial projection with the camera image.
Dependencies are inferred from the claim text.