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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zezhi Chen Ellis, T. |
| Copyright Year | 2013 |
| Description | Author affiliation: Digital Imaging Res. Centre, Kingston Univ., Kingston upon Thames, UK (Zezhi Chen; Ellis, T.) |
| Abstract | Data collection, especially data annotation, is surprisingly time consuming and costly for vehicle classification. This paper presents an algorithm for the semi-automatic annotation of vehicle type that significantly reduces the time needed to annotate a dataset. Vehicles are automatically detected using a background subtraction GMM. The detected vehicles are classified into four main categories: car, van, bus and motorcycle. A vehicle observation vector is constructed from measurement-based features and an intensity-based pyramid HOG (histogram of orientation gradients). K-means clustering is used to initialize the labels of the collected data set. The output scores of a linear SVM classifier are used to identify low confidence samples, which are then manually annotated, significantly reducing the number of samples needing annotation. Experimental results of synthetic and real data set demonstrate the effectiveness and efficiency of our approach. The method is general enough so that it can be used in other classification problems and domains, e.g. pedestrian detection. |
| Sponsorship | IEEE Intell.Transp. Syst. Soc. |
| Starting Page | 59 |
| Ending Page | 64 |
| File Size | 587218 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479929146 |
| DOI | 10.1109/ITSC.2013.6728211 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-10-06 |
| Publisher Place | Netherlands |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Support vector machines Classification algorithms Motorcycles Training Clustering algorithms Accuracy |
| Content Type | Text |
| Resource Type | Article |
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