Motorcycle Classification in Urban Scenarios using Convolutional Neural Networks for Feature Extraction
This work addresses the problem of classifying motorcycles from other road users in urban environments, but it is incremental as it applies existing methods (CNN feature extraction and SVM) to a specific domain.
The paper tackled motorcycle classification in urban scenarios by using a pre-trained CNN (AlexNet) for feature extraction and an SVM for classification, achieving mean accuracies of 99.40% and 99.29% on three-class and five-class tasks, respectively.
This paper presents a motorcycle classification system for urban scenarios using Convolutional Neural Network (CNN). Significant results on image classification has been achieved using CNNs at the expense of a high computational cost for training with thousands or even millions of examples. Nevertheless, features can be extracted from CNNs already trained. In this work AlexNet, included in the framework CaffeNet, is used to extract features from frames taken on a real urban scenario. The extracted features from the CNN are used to train a support vector machine (SVM) classifier to discriminate motorcycles from other road users. The obtained results show a mean accuracy of 99.40% and 99.29% on a classification task of three and five classes respectively. Further experiments are performed on a validation set of images showing a satisfactory classification.