Method for monitoring a position of vehicle in a lane of a roadway
First Claim
1. A method for monitoring a position of a vehicle in a lane of a roadway, comprising the steps of:
- inputting an image signal of a lane from a camera;
eliminating noise of the image signal;
dividing the image signal into a plurality of image frames having different resolutions;
extracting a lane border by processing the image frames;
modeling a road using the lane border;
calculating an actual road width according to a distance between pixels on an image coordinate using a camera parameter calculated in accordance with a position of a camera;
determining if the vehicle is moving out of the lane or not; and
producing an alarm when the vehicle is moving out of the lane.
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Abstract
A method for monitoring a position of a vehicle in a lane of a roadway. An image signal of a lane is first input from a camera, then noise of the image signal is eliminated. The image signal is divided into a plurality of image frames having different resolutions, and a lane border is extracted by processing the image frames. A road is modeled using the lane border, and an actual road width is calculated according to a distance between pixels on an image coordinate using a camera parameter calculated in accordance with a position of a camera. Then it is determined If the vehicle is moving out of the lane or not; and an alarm is produced when the vehicle is moving out of the lane.
19 Citations
3 Claims
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1. A method for monitoring a position of a vehicle in a lane of a roadway, comprising the steps of:
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inputting an image signal of a lane from a camera;
eliminating noise of the image signal;
dividing the image signal into a plurality of image frames having different resolutions;
extracting a lane border by processing the image frames;
modeling a road using the lane border;
calculating an actual road width according to a distance between pixels on an image coordinate using a camera parameter calculated in accordance with a position of a camera;
determining if the vehicle is moving out of the lane or not; and
producing an alarm when the vehicle is moving out of the lane. - View Dependent Claims (2, 3)
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Specification