Abstract: A method for determining extrinsic camera parameters includes: starting camera movement, capturing a first raw image with parallel first and second patches at a first point of time, and a second raw image with parallel third and fourth patches at a second point of time. A distance between the first and second patches and between the third and fourth patches is the same. A reference position A of a first patch image feature, a reference position C of a second patch image feature, an offset position B of the feature of the first patch in the third patch, and an offset position D of the feature of the second patch in the fourth patch are detected. An epipolar model is applied based on the positions A-D and a distance travelled by the camera between the first and second time points. Extrinsic camera parameters are determined from the epipolar model.

Abstract: A method for determining extrinsic camera parameters includes: starting camera movement, capturing a first raw image with parallel first and second patches at a first point of time, and a second raw image with parallel third and fourth patches at a second point of time. A distance between the first and second patches and between the third and fourth patches is the same. A reference position A of a first patch image feature, a reference position C of a second patch image feature, an offset position B of the feature of the first patch in the third patch, and an offset position D of the feature of the second patch in the fourth patch are detected. An epipolar model is applied based on the positions A-D and a distance travelled by the camera between the first and second time points. Extrinsic camera parameters are determined from the epipolar model.

Abstract: A parking assistance system for a vehicle includes surround sensors, internal sensors, a data memory, and a processing unit. The surround sensors are configured to provide sensor data of the surrounding of the vehicle. The internal sensors are configured to detect a seat occupancy of passenger seats within the passenger room of the vehicle. The data memory stores a vehicle data model of the vehicle including positions of vehicle doors in the chassis of the vehicle. In addition, the processing unit is configured to process the sensor data received from the surround sensors to calculate an occupancy grid map of the vehicle's surrounding and further configured to calculate disembarking distances for the vehicle doors depending on the vehicle data model, the occupancy grid map and the detected seat occupancy.