Camera monitor system with camera wing unfolding status detection based upon image processing
AssigneeStoneridge, Inc.
InventorsTroy Otis Cooprider, Liang Ma
Life of this patent
Estimating the term…
Abstract
A method of checking wing position in a camera monitor system includes calibrating a wing position that supports a camera relative to a vehicle to provide a desired field of view, extracting a reference feature from a calibrated image from the camera, storing the reference feature, triggering a wing position check, capturing a current image from the camera, the current image has a current position of the reference feature, comparing the current position of the reference feature to the stored reference feature, and outputting a result of the wing position check if a difference from the comparing step exceeds a threshold value.
Claims14
A method of checking wing position in a camera monitor system, comprising:
- calibrating a wing position supporting a camera relative to a vehicle to provide a desired field of view;
- extracting a reference feature from a calibrated image from the camera, wherein the reference feature is provided on a tractor of the vehicle;
- storing the reference feature;
- triggering a wing position check based upon at least one of a gear position, an engine operating state, and a predetermined time interval;
- capturing a current image from the camera, the current image having a current position of the reference feature;
- comparing the current position of the reference feature to the stored reference feature;
- and
- outputting a result of the wing position check if a difference from the comparing step exceeds a threshold value.
A camera monitor system (CMS) for a vehicle, comprising:
- a wing having a fixed portion configured to be secured to a vehicle, and a foldable portion pivotably mounted on the fixed portion;
- a camera mounted to the foldable portion and having a camera with an image capture unit configured to provide a desired field of view of the vehicle;
- a display configured to depict at least a portion of the field of view;
- an input configured to trigger a wing position check, wherein the input is at least one of a gear position sensor configured to provide a gear position, an engine sensor configured to provide an engine operating state, and a predetermined time interval;
- and
- a controller in communication with the camera and the display, the controller including a calibration module in which a reference feature is extracted from a calibrated image of the camera in which the desired field of view is provided, wherein the reference feature is provided on a tractor of the vehicle, the controller having a memory in which the reference feature is stored, the controller including a wing position verification module responsive to the input, the wing position verification module configured to capture a current image from the camera having a current position of the reference feature, comparing the current position reference feature to the stored reference feature, and outputting a result of the wing position check if a difference from comparing step exceeds a threshold value.
Dependencies are inferred from the claim text.