1. A method for selecting a d-entry feature set for video classification from t training images, each of the t training images having v rows and h columns of sub-images, the method comprising the steps of: computing t transform matrices by performing a transform on each of the t training images, each transform matrix having v rows and h columns of coefficient positions, each coefficient position having a transform coefficient associated with it; and selecting d coefficient positions as the d-entry feature set based upon the transform coefficients in the t transform matrices.