Abstract: A method of image enhancement for a vehicle vision system includes providing a camera at the vehicle and providing a processor operable to process image data. Multiple frames of image data are captured with the camera, and contrast is enhanced in image data by tone mapping. As the vehicle moves, contrast thresholds are tracked within the captured frames of image data with respect to image flow caused by the vehicle's movement. Image data of a first frame of captured image data may be passed through two individual image transfer functions to generate a first transferred frame of image data. The first transferred frame may be blended with a second frame of image data. Presence of an object is detected in the field of view of the camera, and an output is generated responsive to detection of the object present in the field of view of the camera.

Abstract: A method of image enhancement for a vehicle vision system includes providing a camera at the vehicle and providing a processor operable to process image data. Multiple frames of image data are captured with the camera, and contrast is enhanced in image data by tone mapping. As the vehicle moves, contrast thresholds are tracked within the captured frames of image data with respect to image flow caused by the vehicle's movement. Image data of a first frame of captured image data may be passed through two individual image transfer functions to generate a first transferred frame of image data. The first transferred frame may be blended with a second frame of image data. Presence of an object is detected in the field of view of the camera, and an output is generated responsive to detection of the object present in the field of view of the camera.

Abstract: A method of image enhancement for a vehicle vision system includes capturing multiple frames of image data with a camera and executing a first brightness transfer function on a current frame of captured image data to generate a first enhanced image frame. At least one previously captured frame of image data is retrieved, and a second brightness transfer function is executed on the at least one previously captured frame of image data to generate a second enhanced image frame. The first and second enhanced image frames are blended to generate a blended enhanced image frame, and these steps are repeated so as to generate multiple blended enhanced image frames. The presence of an object is detected via processing of blended enhanced image frames by a processor, and an output is generated responsive to detection of the object.

Abstract: A method of image enhancement for a vehicle vision system includes capturing multiple frames of image data with a camera and executing a first brightness transfer function on a current frame of captured image data to generate a first enhanced image frame. At least one previously captured frame of image data is retrieved, and a second brightness transfer function is executed on the at least one previously captured frame of image data to generate a second enhanced image frame. The first and second enhanced image frames are blended to generate a blended enhanced image frame, and these steps are repeated so as to generate multiple blended enhanced image frames. The presence of an object is detected via processing of blended enhanced image frames by a processor, and an output is generated responsive to detection of the object.

Abstract: A vision system for a vehicle includes an imaging sensor disposed at the vehicle and having an exterior field of view, and an image processor. The imaging sensor captures image data and the image processor is operable to process successive frames of captured image data. Responsive to a determination of a low visibility driving condition, the image processor increases the contrast of the captured images to enhance discrimination of objects in the field of view of the imaging sensor. The image processor may execute a first brightness transfer function on frames of captured image data to enhance the contrast of captured image data, and may execute a second brightness transfer function over successive frames of earlier captured image data and may execute a tone mapping of the earlier captured image data and the currently captured image data to generate a contrast enhanced output image.

Abstract: A vision system for a vehicle includes at least one imaging sensor disposed at the vehicle and having an exterior field of view. The imaging sensor is operable to capture image data. The imaging sensor includes or is associated with an inclination sensor. At least one other inclination sensor is disposed at the vehicle. A processing system is operable to process outputs of the inclination sensors to determine an alignment or misalignment of the at least one imaging sensor at the vehicle.

Abstract: A vision system for a vehicle includes an imaging sensor disposed at the vehicle and having an exterior field of view, and an image processor. The imaging sensor captures image data and the image processor is operable to process successive frames of captured image data. Responsive to a determination of a low visibility driving condition, the image processor increases the contrast of the captured images to enhance discrimination of objects in the field of view of the imaging sensor. The image processor may execute a first brightness transfer function on frames of captured image data to enhance the contrast of captured image data, and may execute a second brightness transfer function over successive frames of earlier captured image data and may execute a tone mapping of the earlier captured image data and the currently captured image data to generate a contrast enhanced output image.

Abstract: A vision system for a vehicle includes at least one imaging sensor disposed at the vehicle and having an exterior field of view. The imaging sensor is operable to capture image data. The imaging sensor includes or is associated with an inclination sensor. At least one other inclination sensor is disposed at the vehicle. A processing system is operable to process outputs of the inclination sensors to determine an alignment or misalignment of the at least one imaging sensor at the vehicle.