Method and system for guiding a vehicle with vision enhancement
First Claim
1. A method for guiding a vehicle, the method comprising:
- establishing a maximum allowable correction duration for correction of a location error in a position of a vehicle;
establishing a maximum allowable vision-derived displacement for correction of vision error in the position of the vehicle;
collecting location data for the vehicle based on a location-determining receiver associated with the vehicle;
collecting vision data for the vehicle based on a vision module associated with the vehicle;
estimating location quality data for the location data during an evaluation time window;
estimating vision quality data for the vision data during the evaluation time window, the vision quality data being degraded by a quality degradation indicator where a reference feature or reference marker in an image is not referenced for a threshold maximum time; and
selecting a guidance mode of the vehicle based on the quality data and consistent with at least one of the maximum allowable correction duration and the maximum allowable vision displacement.
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Accused Products
Abstract
A method and system for guiding a-vehicle comprises a location module for collecting location data for the vehicle. A vision module collects vision data for the vehicle. A maximum allowable correction duration and a maximum allowable vision-derived displacement are established for correction of a position of a vehicle. A location quality estimator estimates location quality data for the corresponding collected location data during an evaluation time window. A vision module estimates vision quality data for the corresponding collected vision data during the evaluation time window. A selector selects the application of location data or vision data based on the quality data and at least one of the maximum allowable correction duration and the maximum allowable vision-derived displacement for the evaluation time window or for an application interval trailing the evaluation time window.
71 Citations
22 Claims
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1. A method for guiding a vehicle, the method comprising:
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establishing a maximum allowable correction duration for correction of a location error in a position of a vehicle; establishing a maximum allowable vision-derived displacement for correction of vision error in the position of the vehicle; collecting location data for the vehicle based on a location-determining receiver associated with the vehicle; collecting vision data for the vehicle based on a vision module associated with the vehicle; estimating location quality data for the location data during an evaluation time window; estimating vision quality data for the vision data during the evaluation time window, the vision quality data being degraded by a quality degradation indicator where a reference feature or reference marker in an image is not referenced for a threshold maximum time; and selecting a guidance mode of the vehicle based on the quality data and consistent with at least one of the maximum allowable correction duration and the maximum allowable vision displacement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for guiding a vehicle, the system comprising:
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a data storage device for storing at least one of a maximum allowable correction duration and a maximum allowable vision-derived displacement for correction of a position of a vehicle; a location module for collecting location data for the vehicle based on a location-determining receiver associated with the vehicle; a vision module for collecting vision data for the vehicle based on a vision module associated with the vehicle; a location quality estimator for estimating location quality data for the location data during an evaluation time window; a vision quality estimator for estimating vision quality data for the vision data during the evaluation time window, the vision quality data being degraded by a quality degradation indicator where a reference feature or reference marker in an image is not referenced for a threshold maximum time; and a selector for selecting a guidance mode of the vehicle based on the quality data and consistent with at least one of the maximum allowable correction duration and the maximum allowable vision-derived displacement. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification