Patent ID: 9683836
Date: 2017-06-20
CPC Classifications: G01B,G06K

Claim:
1. A method for vehicle classification utilizing a laser scanner, said method comprising: scanning at least one vehicle with a laser scanner comprising a time-of-flight measuring device that emits short pulses of light toward said at least one vehicle to generate scanned data, said scanning is repeated in a varying set of angles and each scan covers a linear row up to 100 degrees, wherein a number of rows depending on the length and/or speed of the vehicle; compiling with a processor data indicative of an optical profile of said at least one vehicle from said scanned data generated from said laser scanner; signal pre-processing with said processor said optical profile associated with said at least one vehicle, wherein said optical profile comprises a laser profile that is pre-processed with said processor wherein an input for all feature descriptors comprises a 2D cropped laser signal corresponding to a largest component in an original laser profile with respect to said laser profile; extracting with said processor particular features from said optical profile after preprocessing said optical profile, said particular features including at least two attribute features extracted by segmenting said laser profile into units with threshold heuristics; and classifying with at least one trained classifier said at least one vehicle based on said particular features extracted from said optical profile, said at least one trained classifier comprising a one-versus all linear classifier.