A simple, intuitive camera calibration tool for natural images
BMVC 94 Proceedings of the conference on British machine vision (vol. 2)
Machine Learning
An Efficient k-Means Clustering Algorithm: Analysis and Implementation
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Vision-Based Vehicle Identification System
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 4 - Volume 04
Improved Vehicle Classification in Long Traffic Video by Cooperating Tracker and Classifier Modules
AVSS '06 Proceedings of the IEEE International Conference on Video and Signal Based Surveillance
Machine Graphics & Vision International Journal
Examining Kalman Filters Applied to Tracking Objects in Motion
WIAMIS '08 Proceedings of the 2008 Ninth International Workshop on Image Analysis for Multimedia Interactive Services
SURF: speeded up robust features
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part I
Automatic traffic surveillance system for vehicle tracking and classification
IEEE Transactions on Intelligent Transportation Systems
Comparison of texture features based on Gabor filters
IEEE Transactions on Image Processing
Rotation Moment Invariants for Recognition of Symmetric Objects
IEEE Transactions on Image Processing
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Experiments and results regarding vehicle type classification are presented. Three classes of vehicles are recognized: sedans, vans and trucks. The system uses a non-calibrated traffic camera, therefore no direct vehicle dimensions are used. Various vehicle descriptors are tested, including those based on vehicle mask only and those based on vehicle images. The latter ones employ Speeded Up Robust Features (SURF) and gradient images convolved with Gabor filters. Vehicle type is recognized with various classifiers: artificial neural network, K-nearest neighbors algorithm, decision tree and random forest.