ROAD SURFACE CONDITION CLASSIFICATION METHOD AND SYSTEM
First Claim
1. A computer implemented method for classifying winter road surface conditions, comprising:
- acquiring a digital image of a road surface at a given location and time;
processing the acquired digital image to generate one or more feature vectors for classifying winter road surface conditions;
acquiring values for auxiliary data to create feature vectors that enhance classification of the winter road surface conditions; and
based on a comparison of the feature vectors to models in a classification knowledge database, classifying the road surface condition at the given location and time of the acquired digital image.
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Abstract
There is disclosed a method and system for classifying road surface conditions. In an aspect, the method comprises: acquiring a digital image of a road surface at a given location and time; processing the acquired digital image to generate one or more feature vectors for classifying winter road surface conditions; acquiring values for auxiliary data to create feature vectors that enhance classification of the winter road surface conditions; and based on a comparison of the feature vectors to models in a classification knowledge database, classifying the road surface condition at the given location and time of the acquired digital image. In an embodiment, the method further comprises collecting classified road surface condition information acquired from a plurality of vehicles travelling over one or more roads; and mapping the classified winter road surface conditions for the one or more roads on a graphical display of a geographic region.
62 Citations
24 Claims
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1. A computer implemented method for classifying winter road surface conditions, comprising:
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acquiring a digital image of a road surface at a given location and time; processing the acquired digital image to generate one or more feature vectors for classifying winter road surface conditions; acquiring values for auxiliary data to create feature vectors that enhance classification of the winter road surface conditions; and based on a comparison of the feature vectors to models in a classification knowledge database, classifying the road surface condition at the given location and time of the acquired digital image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for classifying winter road surface conditions, wherein the system is adapted to:
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acquire a digital image of a road surface at a given location and time; process the acquired digital image to generate one or more feature vectors for classifying winter road surface conditions; acquire values for auxiliary data to create feature vectors that enhance classification of the winter road surface conditions; and classify the road surface condition at the given location and time of the acquired digital image based on a comparison of the feature vectors to models in a classification knowledge database. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification