Method for inputting a control command for a component of a motor vehicle

摘要

A method inputs a control command for a component of a motor vehicle. The method involves generating an image sequence of an input object guided by a user in a specified detection region using an imaging device, detecting a change in position of the input object on the basis of the image sequence, and generating a control command for the component of the motor vehicle on the basis of the detected change in position. The imaging device employs at least one infrared-sensitive camera, and the detection region is illuminated using at least one infrared source.

主权项

1. A method for inputting a control command for a component of a motor vehicle, comprising:
acquiring a calibration image for an input object, the calibration image being determined when the input object is at a predetermined position within a predetermined acquisition region, in order to calibrate a skeleton model to the input object; generating an image sequence for the input object, the image sequence being generated by imaging the input object within the acquisition region as the user guides the input object through the acquisition region, the input object being imaged by an imaging device comprising an infrared camera; illuminating the input object within the acquisition region using an infrared source so that infrared light from the infrared source is scattered by the input object back to the camera; identifying a position change of the input object based on the image sequence by:
adapting a first image of the image sequence to the skeleton model using first parameters;adapting a second image of the image sequence to the skeleton model using second parameters; andcomparing the first and second parameters; determining position information from a ratio between a size of the input object in the calibration image and a size of the input object in at least one image of the image sequence, and from a position of the input object along an axis parallel to a viewing direction of the camera determined based on a luminous intensity of the infrared light scattered back to the camera; and generating a control command for, and inputting the control command to, the component of the motor vehicle based on the position change and the position information, wherein a duration for which the camera is allowed to be exposed to the infrared light scattered back to the camera is varied cyclically by exposing the camera to the infrared light scattered back to the camera for a first period of time and exposing the camera to the infrared light scattered back to the camera for a second period of time which is greater than the first period of time.