Figure 8

Confusion matrices obtained on the KTH dataset with F2 descriptors [ 19 ], using SVM and the indicated kernels; (a) shows the rec with recognition rates of histogram Intersection kernel which is a positive definite but not a characteristic kernel; (b) denotes the result of a characteristic kernel (Gaussian) which is not tailored for histogram based information; (c) is the result of characteristic kernel which is tailored for histograms.