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US 10,540,756 B2Granted
Vehicle vision system with lens shading correction
AssigneeMagna Electronics Inc.
InventorsMichael Junglas, Timor Knudsen, Peter Nicke
Life of this patent
Estimating the term…
Abstract
A vision system for a vehicle includes a camera disposed at a vehicle and having a field of view exterior of the vehicle, an image processor operable to process image data captured by the camera, and a display operable to display images derived from image data captured by the camera. The image processor, via processing of image data captured by the camera, determines a noise level in image data captured by the camera. The vision system applies a lens shading algorithm to captured image data, and the vision system adjusts a level of the lens shading algorithm responsive to the determined noise level.
Claims20
A vision system for a vehicle, said vision system comprising:
- a camera configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle, said camera comprising an imager and a lens;
- an image processor operable to process image data captured by said camera;
- a display configured to be disposed in the vehicle so as to be viewable by a driver of the vehicle;
- wherein said image processor, via processing of image data captured by said camera, determines a noise level in image data captured by said camera;
- wherein said vision system applies a lens shading algorithm to image data captured by said camera;
- wherein said vision system adjusts a level of the lens shading algorithm responsive to the determined noise level;
- and
- wherein, with said camera disposed at the vehicle and with said display disposed in the vehicle, said display displays images derived from image data captured by said camera after the adjusted level of the lens shading algorithm is applied.
5 more elements
A vision system for a vehicle, said vision system comprising:
- a plurality of cameras configured to be disposed at a vehicle so as to have respective fields of view exterior of the vehicle, each of said cameras comprising an imager and a lens;
- an image processor operable to process image data captured by said cameras;
- a display configured to be disposed in the vehicle so as to be viewable by a driver of the vehicle;
- wherein said image processor, via processing of image data captured by said cameras, determines a noise level in image data captured by each of said cameras;
- wherein said vision system applies a lens shading algorithm to image data captured by said cameras;
- wherein said vision system adjusts a level of the lens shading algorithm responsive to the determined noise level;
- wherein, responsive to the determined noise level being greater than an upper threshold level, the lens shading algorithm is not applied;
- wherein, with said cameras disposed at the vehicle and said display disposed in the vehicle, said display displays a surround view image derived from image data captured by said cameras and stitched together to provide a composite image at said display;
- and
- wherein the displayed surround view image is derived from image data captured by said cameras after the adjusted level of the lens shading algorithm is applied.
7 more elements
A vision system for a vehicle, said vision system comprising:
- a plurality of cameras configured to be disposed at a vehicle so as to have respective fields of view exterior of the vehicle, each of said cameras comprising an imager and a lens;
- an image processor operable to process image data captured by said cameras;
- a display configured to be disposed in the vehicle so as to be viewable by a driver of the vehicle;
- wherein said image processor, via processing of image data captured by said cameras, determines a noise level in image data captured by said camera;
- wherein said vision system applies a lens shading algorithm to image data captured by said cameras;
- wherein said vision system adjusts a level of the lens shading algorithm responsive to the determined noise level;
- wherein, with said cameras disposed at the vehicle and said display disposed in the vehicle, said display displays a surround view image derived from image data captured by said cameras and stitched together to provide a composite image at said display;
- wherein the displayed surround view image is derived from image data captured by said cameras after the adjusted level of the lens shading algorithm is applied;
- wherein, responsive to an increase in the determined noise level, said vision system reduces the level of the lens shading algorithm;
- wherein, responsive to the determined noise level being less than a first threshold level, the lens shading algorithm is tuned to 100 percent;
- and
- wherein, responsive to the determined noise level being greater than the first threshold level but less than a second threshold level, the lens shading algorithm is tuned to 50 percent.
9 more elements
Dependencies are inferred from the claim text.