Method and device for optically detecting the open state of a vehicle door
First Claim
1. A method for detecting a position of an object in a vehicle and/or an object forming a part of the vehicle, comprising:
- recording a sequence of images of a door of a vehicle with a camera;
generating a differential image by comparing a currently recorded image of the door with a previously stored image of the door;
determining whether the door is in an open state or a closed state by evaluating the differential image; and
if the door is in the open state, switching off a security device protecting at least one occupant of the vehicle.
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Accused Products
Abstract
The invention relates to a method for detecting the position of an object within the interior or a vehicle equipped with a door (4). The inventive method is characterized by recording a sequence of images by means of a camera (2) and calculating the actual position of the object by electronically evaluating the images of the sequence of images, and generating a differential image by comparing an actual recorded image with a previously stored image. The position of the object is calculated on the basis of the differential image. To achieve this, the camera (2) records images of the door (4). The images of the door (4) are evaluated and the open state of the door (4) is established on the basis of the differential image between the closed state and the opened state.
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Citations
23 Claims
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1. A method for detecting a position of an object in a vehicle and/or an object forming a part of the vehicle, comprising:
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recording a sequence of images of a door of a vehicle with a camera; generating a differential image by comparing a currently recorded image of the door with a previously stored image of the door; determining whether the door is in an open state or a closed state by evaluating the differential image; and if the door is in the open state, switching off a security device protecting at least one occupant of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for detecting a position of an object in a vehicle and/or an object forming a part of the vehicle, comprising:
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recording a sequence of images of at least a portion of a door of a vehicle with a camera; generating a differential image by comparing a currently recorded image of at least the portion of the door with a previously stored image of at least the portion of the door; determining whether a window located in the door is in an open state by evaluating the differential image; and if an object is within an open area of a frame of the door, generating a signal indicating the presence of the object within the open area;
the open area of the frame of the door being formed when the window is open. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A device for detecting a position of an object in a vehicle and/or an object forming a part of the vehicle, the device comprising:
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a camera recording a sequence of images of a door of a vehicle; and a monitoring device configured to; generate a differential image by comparing a currently recorded image of the door with a previously stored image of the door; determine whether the door is in an open state or a closed state by evaluating the differential image; and switch off a security device protecting at least one occupant of the vehicle if the door is in the open state. - View Dependent Claims (21)
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22. A device for detecting a position of an object in a vehicle and/or an object forming a part of the vehicle, the device comprising:
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a camera recording a sequence of images of at least a portion of a door of a vehicle; and a monitoring device configured to; generate a differential image by comparing a currently recorded image of at least the portion of the door with a previously stored image of at least the portion of the door; determine whether a window located in the door is in an open state by evaluating the differential image; and generate a signal indicating whether an object is within an open area of a frame of the door;
the open area of the frame of the door being formed when the window is open. - View Dependent Claims (23)
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Specification