Vehicle vision system camera with adaptive field of view
A vision system for a vehicle includes a camera configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle. The camera includes a wide angle lens providing a field of view of the camera and the camera captures an image data set representative of the field of view of the camera. An image processor may process image data captured by the camera and may process a sub-set of the image data set representative of a sub-portion of the field of view of said camera that is less than the field of view of the camera. A display may display images derived from the sub-set of the image data set representative of the sub-portion of the field of view of the camera. The sub-set of the image data set for processing or display is determined based on steering of the vehicle.
1. A vision system for a vehicle, said vision system comprising:
a camera disposed at a vehicle so as to have a field of view exterior of the vehicle;
wherein said camera comprises a pixelated imaging array having a two dimensional array of photosensing elements;
wherein said camera comprises a wide angle lens providing the field of view, and wherein said camera captures an image data set representative of the field of view of said camera;
an image processor operable to process image data captured by said camera;
wherein said image processor processes a sub-set of said image data set representative of a sub-portion of the field of view of said camera to determine the presence of an object in the sub-portion of the field of view of said camera;
wherein the sub-set of said image data set is representative of the sub-portion of the field of view of said camera that is less than the field of view of said camera;
a display disposed at the vehicle and viewable by a driver of the vehicle, wherein said display is operable to display video images derived from the sub-set of said image data set;
wherein the sub-set of said image data set that is processed by said image processor is determined based on steering of the vehicle; and
wherein, during a driving maneuver of the vehicle, said display displays video images derived from the determined sub-set of said image data set and does not display video images derived from other captured image data not part of the determined sub-set of said image data set.
2. The vision system of claim 1 , wherein another sub-set of said image data set is determined and processed by said image processor based on a change in steering of the vehicle.
3. The vision system of claim 1 , wherein said camera is disposed at a rear portion of the vehicle so as to have a rearward field of view.
4. The vision system of claim 1 , wherein the field of view of said camera comprises at least a 180 degree field of view, and wherein the sub-portion of the field of view of said camera comprises less than a 135 degree field of view.
5. The vision system of claim 1 , wherein the determined sub-set of said image data set is determined by determining a sub-set of said image data set that is representative of a sub-portion of the field of view that has a principal axis extending sideward of the vehicle that corresponds to the direction in which the vehicle is steered.
6. The vision system of claim 1 , wherein the determined sub-set of said image data set is determined by determining a sub-set of said image data set that is representative of a sub-portion of the field of view that has a side border expanded towards the side of the vehicle that corresponds to the direction in which the vehicle is steered.
7. The vision system of claim 1 , wherein, as the vehicle is steered towards one side when changing its direction of travel, said image processor processes a sub-set of said image data set representative of a sub-portion of the field of view of said camera towards that side.
8. The vision system of claim 7 , wherein said image processor processes different sub-sets of said image data set responsive to changes in steering of the vehicle, and wherein the different sub-sets of said image data set are representative of respective sub-portions of the field of view of said camera having a principal axis in a respective direction of steering of the vehicle.
9. A vision system for a vehicle, said vision system comprising:
a camera disposed at a rear portion of a vehicle so as to have a field of view exterior and rearward of the vehicle;
wherein said camera comprises a pixelated imaging array having a two dimensional array of photosensing elements;
wherein said camera comprises a wide angle lens providing the field of, and wherein said camera captures an image data set representative of the field of view of said camera;
a display disposed at the vehicle and viewable by a driver of the vehicle, wherein said display is operable to display video images derived from captured image data;
wherein said display displays video images derived from a sub-set of said image data set representative of a sub-portion of the field of view of said camera;
wherein the sub-set of said image data set is representative of a sub-portion of the field of view of said camera that is less than the field of view of said camera;
wherein the sub-set of said image data set that represents the displayed sub-portion of the field of view of said camera is determined based on steering of the vehicle;
wherein, responsive to steering of the vehicle during a driving maneuver of the vehicle, said display displays video images derived from the determined sub-set of said captured image data set corresponding to a sub-portion of the field of view of said camera that encompasses a region sideward of the vehicle in the direction of steering; and
wherein, during the driving maneuver of the vehicle, said display does not display video images derived from other captured image data not part of the determined sub-set of said image data set.
10. The vision system of claim 9 , wherein the field of view of said camera comprises at least a 180 degree field of view, and wherein the sub-portion of the field of view of said camera comprises less than a 135 degree field of view.
11. The vision system of claim 9 , wherein the determined sub-set of said image data set is determined by determining a sub-set of said image data set that is representative of a sub-portion of the field of view that has a principal axis extending sideward of the vehicle that corresponds to the direction in which the vehicle is steered.
12. The vision system of claim 9 , wherein the determined sub-set of said image data set is determined by determining a sub-set of said image data set that is representative of a sub-portion of the field of view that has a side border expanded towards the side of the vehicle that corresponds to the direction in which the vehicle is steered.
13. The vision system of claim 12 , wherein an opposite side border of the sub-portion of the field of view is not expanded.
14. The vision system of claim 9 , wherein, as the vehicle is steered towards one side when changing its direction of travel, said display displays images derived from a sub-set of said image data set representative of a sub-portion of the field of view of said camera towards that side.
15. A vision system for a vehicle, said vision system comprising:
a camera disposed at a rear portion of a vehicle so as to have a field of view exterior and rearward of the vehicle;
wherein said camera comprises a pixelated imaging array having a two dimensional array of photosensing elements;
wherein said camera comprises a wide angle lens providing the field of, and wherein said camera captures an image data set representative of the field of view of said camera;
an image processor operable to process image data captured by said camera;
a display disposed at the vehicle and viewable by a driver of the vehicle, wherein said display is operable to display images derived from captured image data;
wherein said image processor processes a sub-set of said image data set representative of a sub-portion of the field of view of said camera to determine the presence of an object in the sub-portion of the field of view of said camera;
wherein said display displays video images derived from the sub-set of said image data set representative of the sub-portion of the field of view of said camera;
wherein the sub-set of said image data set is representative of a sub-portion of the field of view of said camera that is less than the field of view of said camera;
wherein the sub-set of said image data set that is processed by said image processor is determined based on steering of the vehicle, and wherein the sub-set of said image data set that represents the displayed sub-portion of the field of view of said camera is determined based on steering of the vehicle; and
wherein, during a driving maneuver of the vehicle, said display displays video images derived from the determined sub-set of said image data set and does not display video images derived from other captured image data not part of the determined sub-set of said image data set.
16. The vision system of claim 15 , wherein the field of view of said camera comprises at least a 180 degree field of view, and wherein the sub-portion of the field of view of said camera comprises less than a 135 degree field of view.
17. The vision system of claim 15 , wherein the sub-set of said image data set is representative of a sub-portion of the field of view that has a principal axis extending sideward of the vehicle that corresponds to the direction in which the vehicle is steered.