System and method for detecting obstacles to vehicle motion and determining time to contact therewith using sequences of images
DC CAFCFirst Claim
1. A time-to-contact estimate determination system for generating an estimate as to the time-to-contact of a vehicle moving along a roadway with an obstacle comprising:
- A. an image receiver configured to receive image information relating to a series of at least two images as the vehicle moves along a roadway; and
characterized byB. a processor configured to determine a scaling factor that defines a ratio between a dimension length associated with two features of the obstacle in a first one of the at least two images and the same length between the same two features of the obstacle in a second one of the at least two images and uses the ratio to generate a time-to-contact estimate of the vehicle with the obstacle.
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Abstract
A time-to-contact estimate determination system is disclosed for generating an estimate as to the time-to-contact of a vehicle moving along a roadway with an obstacle. The time-to-contact estimate determination system comprises an image receiver and a processor. The image receiver is configured to receive image information relating to a series of at least two images recorded as the vehicle moves along a roadway. The processor is configured to process the image information received by the image receiver to generate a time-to-contact estimate of the vehicle with the obstacle.
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Citations
7 Claims
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1. A time-to-contact estimate determination system for generating an estimate as to the time-to-contact of a vehicle moving along a roadway with an obstacle comprising:
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A. an image receiver configured to receive image information relating to a series of at least two images as the vehicle moves along a roadway; and
characterized byB. a processor configured to determine a scaling factor that defines a ratio between a dimension length associated with two features of the obstacle in a first one of the at least two images and the same length between the same two features of the obstacle in a second one of the at least two images and uses the ratio to generate a time-to-contact estimate of the vehicle with the obstacle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification