Vehicle make and model recognition using sparse representation and symmetrical SURFs
| Autor: | Yilin Yan, Duan-Yu Chen, Jun-Wei Hsieh, Li-Chih Chen |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Background subtraction
Contextual image classification Matching (graph theory) business.industry Feature extraction Hamming distance Pattern recognition Sparse approximation Artificial Intelligence Signal Processing Computer vision Computer Vision and Pattern Recognition Artificial intelligence Noise (video) Representation (mathematics) Projection (set theory) business Hamming code Software Mathematics |
| Zdroj: | ITSC |
| ISSN: | 0031-3203 |
| DOI: | 10.1016/j.patcog.2014.12.018 |
| Popis: | This paper presents a new symmetrical SURF descriptor to detect vehicles on roads and then proposes a novel sparsity-based classification scheme to recognize their makes and models. First, for vehicle detection, this paper proposes a symmetry transformation on SURF points to detect all possible matching pairs of symmetrical SURF points. Then, each desired ROI of vehicle can be located very accurately from the set of symmetrical matching pairs through a projection technique. The advantages of this scheme are no need of background subtraction and its extreme efficiency in real-time detection tasks. After that, two challenges in vehicle make and model recognition (MMR) should be addressed, i.e., the multiplicity and ambiguity problems. The multiplicity problem stems from one vehicle model often having different model shapes on the road. The ambiguity problem means vehicles even made from different companies often share similar shapes. To treat the two problems, a dynamic sparse representation scheme is proposed to represent a vehicle model in an over-complete dictionary whose base elements are the training samples themselves. With the dictionary, a novel Hamming distance classification scheme is proposed to classify vehicle makes and models to detailed classes. Because of the sparsity of the representation and the nature of Hamming code highly tolerant to noise, different vehicle makes and models can be recognized with high accuracy. A novel idea is proposed to enrich the SURF scheme to detect symmetrical objects.A new detection scheme is proposed to detect vehicles from moving cameras.A novel sparse representation is proposed to represent and recognize vehicle makes and models.An HDC scheme is proposed to classify vehicles to various vehicle categories. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect