**4.2 Support Vector Machines (SVM)**

Support Vector Machines (SVM) is one of the most popular classifier which has recently gained popularity within visual pattern recognition. In spatial recognition, local features have recently been combined with SVM in a robust classification approach. In a similar manner, Schuldt et al. (Schuldt et al., 2004) explored the combination of local space-time features and SVM and apply the resulting approach to the recognition of human actions.
