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Dimensionality reduction plays an important role in lung nodule classification, but in most of the existing methods, dimensionality is reduced with all classes being considered jointly, difference between feature subsets of different classes is ignored. In this paper, a supervised manifold feature extraction method based on fusion of all-class and pair wise-class is proposed. Firstly, a manifold learning...
Low-level appearance as well as spatio-temporal features, appropriately quantized and aggregated into Bag-of-Words (BoW) descriptors, have been shown to be effective in many detection and recognition tasks. However, their effcacy for complex event recognition in unconstrained videos have not been systematically evaluated. In this paper, we use the NIST TRECVID Multimedia Event Detection (MED11 [1])...
In order to solve the problem that algorithm SVM (Support Vector Machine) is very slowly for intrusion detection systems, a novel algorithm based on SVM divided up by clusters was proposed. In the method, Training set is divided into many subsets by clustering algorithm, and these subsets are classified by the decision function SVM. Detection Experiments with the algorithm on intrusion detection data...
We present a system that improves accuracy of food intake assessment using computer vision techniques. Traditional dietetic method suffers from the drawback of either inaccurate assessment or complex lab measurement. Our solution is to use a mobile phone to capture images of foods, recognize food types, estimate their respective volumes and finally return quantitative nutrition information. Automated...
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