Vehicle vision system with overlay calibration
AssigneeMagna Electronics Inc.
InventorBenjamin May
Life of this patent
Estimating the term…
Abstract
A vision system of a vehicle includes a camera disposed at the vehicle and having a field of view exterior of the vehicle. The camera includes an imager and a processor that is operable to process image data captured by the imager. A video display screen is operable to display video images derived from image data captured by the camera. The processor generates a graphic overlay for display with the video images at the video display screen. The processor calibrates the graphic overlay by adapting the view orientation and position of the displayed video images utilizing a spatial transform engine to adapt the view orientation and position to a corrected position and orientation.
Claims20
A vision system of a vehicle, said vision system comprising:
- a camera disposed at a vehicle and having a field of view exterior of the vehicle;
- wherein said camera comprises an imager having a pixelated imaging array having a plurality of photosensing elements;
- wherein said camera comprises a processor operable to process image data captured by said imager;
- a video display screen operable to display video images derived from image data captured by said imager;
- wherein said processor generates a graphic overlay for display with the video images at said video display screen;
- and
- wherein, responsive to processing by said processor of image data captured by said imager, said processor calibrates the camera relative to the vehicle by adapting the image data utilizing a spatial transform engine to adapt the image data orientation and position relative to the generated graphic overlay to a corrected orientation and position relative to the generated graphic overlay.
A vision system of a vehicle, said vision system comprising:
- a rearward viewing camera disposed at a rear portion of a vehicle and having a field of view exterior and rearward of the vehicle;
- wherein said rearward viewing camera comprises an imager having a pixelated imaging array having a plurality of photosensing elements;
- wherein said rearward viewing camera comprises a companion chip having a processor operable to process image data captured by said imager;
- wherein said processor runs calibration with use of frames of captured image data it receives from said imager;
- a video display screen operable to display video images derived from image data captured by said imager;
- wherein said processor generates a graphic overlay for display with the video images at said video display screen;
- wherein the graphic overlay comprises a projected path of travel of the vehicle during a reversing maneuver of the vehicle when said video display screen is displaying video images captured by said rearward viewing camera;
- and
- wherein, responsive to processing by said processor of image data captured by said imager, said processor calibrates the camera relative to the vehicle by adapting the image data utilizing a spatial transform engine to adapt the image data orientation and position relative to the generated graphic overlay to a corrected orientation and position relative to the generated graphic overlay.
A vision system of a vehicle, said vision system comprising:
- a rearward viewing camera disposed at a rear portion of a vehicle and having a field of view exterior and rearward of the vehicle;
- wherein said rearward viewing camera comprises an imager having a pixelated imaging array having a plurality of photosensing elements;
- wherein said rearward viewing camera comprises a processor operable to process image data captured by said imager;
- a video display screen operable to display video images derived from image data captured by said imager;
- wherein said processor generates a graphic overlay for display with the video images at said video display screen;
- wherein the graphic overlay comprises a projected path of travel of the vehicle during a reversing maneuver of the vehicle when said video display screen is displaying video images captured by said rearward viewing camera;
- wherein, responsive to processing by said processor of image data captured by said imager, said processor calibrates the camera relative to the vehicle by adapting the image data utilizing a spatial transform engine to adapt the image data orientation and position relative to the generated graphic overlay to a corrected orientation and position relative to the generated graphic overlay;
- and
- wherein, with the image data orientation and position relative to the generated graphic overlay adapted to the corrected orientation and position relative to the generated graphic overlay, the graphic overlay matches the displayed images without need of changing the graphic overlay.
Dependencies are inferred from the claim text.