System and method for range measurement of a preceding vehicle
First Claim
1. A system for determining range of a vehicle, the system comprising:
- a camera configured to view a region of interest including the vehicle and generate an electrical image of the region;
a processor in electrical communication with the camera to receive the electrical image, wherein the processor is configured to create an edge enhanced image and construct a plurality of objects indicative of potential vehicle locations from the edge enhanced image, and wherein each object of the plurality of objects is analyzed based on a model of a plurality of models to determine a score for each object, the range of the vehicle being determined based on the object with the best score.
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Accused Products
Abstract
A system for determining range and lateral position of a vehicle is provided. The system includes a camera and a processor. The camera is configured to view a region of interest including the vehicle and generate an electrical image of the region. The processor is in electrical communication with the camera to receive the electrical image. The processor analyzes the image by identifying a series of windows within the image each window corresponds to features of the vehicle at a different target range. For example, from the perspective of the camera the vehicle will appear larger when it is closer to the camera than if it is further away from the camera. Accordingly, each window is sized proportional to the vehicle as it would appear at each target range. The processor evaluates characteristics in the electrical image within each window to identify the vehicle. A score is determined indicating the likelihood that certain characteristics of the electrical image actually correspond to the vehicle and also that the vehicle is at target range for that window.
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Citations
22 Claims
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1. A system for determining range of a vehicle, the system comprising:
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a camera configured to view a region of interest including the vehicle and generate an electrical image of the region; a processor in electrical communication with the camera to receive the electrical image, wherein the processor is configured to create an edge enhanced image and construct a plurality of objects indicative of potential vehicle locations from the edge enhanced image, and wherein each object of the plurality of objects is analyzed based on a model of a plurality of models to determine a score for each object, the range of the vehicle being determined based on the object with the best score. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification