Abstract: A vision system for a vehicle includes a rearward facing camera disposed at a rearward portion of a vehicle. With a trailer attached to the vehicle and rearward of the vehicle, a processor is operable to process captured images and, responsive at least in part to the processing, is operable to determine a plurality of trailer and vehicle-trailer interface parameters. The system is operable to calculate a calculated trailer angle based at least in part on calculations involving the parameters and a steering angle of the vehicle. Responsive to processing of images captured by the camera, the system is operable to determine a determined trailer angle of the trailer relative to a longitudinal axis of the vehicle. Responsive to the determined trailer angle and the calculated trailer angle, the system is operable to determine a degree of offset between the calculated trailer angle and the detected trailer angle.

Abstract: An imaging system suitable for use in a vehicle includes an imaging sensor having a two-dimensional array of photosensing pixels that includes at least one sub-array having a first photosensing pixel, a second photosensing pixel, a third photosensing pixel and a fourth photosensing pixel. Spectral filtering is disposed at the photosensing pixels whereby the first photosensing pixel primarily senses red visible light, the second photosensing primarily senses blue visible light, the third photosensing primarily senses green visible light and the fourth photosensing primarily senses infrared radiation. The imaging sensor is disposed at a vehicle and has a field of view external of the vehicle. An image processor is operable for processing image data captured by the imaging sensor. The image data includes outputs of the first, second, third and fourth photosensing pixels. The processing of image data by the image processor may include de-mosaicing that reduces infrared color wash-out.

Abstract: An imaging system for a vehicle includes an imaging sensor having four photosensing pixels of a sub-array, with one of (a) a red-light transmitting spectral filter disposed at a first photosensing pixel whereby the first pixel of each sub-array primarily senses red visible light and with an IR transmitting spectral filter disposed at the fourth photosensing pixel whereby the fourth pixel of each sub-array primarily senses infrared radiation, and (b) a red-light transmitting spectral filter disposed at a first photosensing pixel whereby the first pixel of each sub-array primarily senses red visible light and with an IR transmitting spectral filter disposed at a third photosensing pixel whereby the third pixel of each sub-array primarily senses infrared radiation. An image processor processes the output of each sub-array to determine at least one of an infrared component of the imaged scene and a visible light component of the imaged scene.

Abstract: A vision system for a vehicle includes a rearward facing camera disposed at a rearward portion of a vehicle. With a trailer attached to the vehicle and rearward of the vehicle, a processor is operable to process captured images and, responsive at least in part to the processing, is operable to determine a plurality of trailer and vehicle-trailer interface parameters. The system is operable to calculate a calculated trailer angle based at least in part on calculations involving the parameters and a steering angle of the vehicle. Responsive to processing of images captured by the camera, the system is operable to determine a determined trailer angle of the trailer relative to a longitudinal axis of the vehicle. Responsive to the determined trailer angle and the calculated trailer angle, the system is operable to determine a degree of offset between the calculated trailer angle and the detected trailer angle.

Abstract: An imaging system for a vehicle includes an imaging sensor having four photosensing pixels of a sub-array, with one of (a) a red-light transmitting spectral filter disposed at a first photosensing pixel whereby the first pixel of each sub-array primarily senses red visible light and with an IR transmitting spectral filter disposed at the fourth photosensing pixel whereby the fourth pixel of each sub-array primarily senses infrared radiation, and (b) a red-light transmitting spectral filter disposed at a first photosensing pixel whereby the first pixel of each sub-array primarily senses red visible light and with an IR transmitting spectral filter disposed at a third photosensing pixel whereby the third pixel of each sub-array primarily senses infrared radiation. An image processor processes the output of each sub-array to determine at least one of an infrared component of the imaged scene and a visible light component of the imaged scene.

Abstract: A critical parameter for a device is generated as follows. The critical parameter is modeled. When the device is operated under steady-state conditions, the modeled parameter is corrected by a measured parameter known to be accurate under steady state operating conditions. The correction accounts for errors which may be present in the synthesis of the critical parameter and normal anticipated performance variation of the device. When the device is operated under transient conditions, however, the correction of the modeled parameter is based upon previous steady-state conditions. Thus, the apparatus generates a theoretical parameter during transient operating conditions.