Patent ID: 8249301

Claim:
A method for classifying one or more objects in at least one video, wherein the at least one video comprises a plurality of frames, the method comprising: tracking one or more objects in the plurality of frames; computing a level of deformation for each of the one or more tracked objects in accordance with at least one change in a plurality of histograms of oriented gradients for a corresponding tracked object; and classifying each of the one or more tracked objects in accordance with the computed level of deformation; wherein computing a level of deformation further comprises the steps of: computing a plurality of histograms of oriented gradients for a given tracked object in the plurality of frames; detecting at least one change in the plurality of histograms of oriented gradients over the plurality of frames for the given tracked object; and calculating a level of deformation for the given tracked object using a weighted function, such that a variable of the weighted function is the at least one detected change in the plurality of histograms of oriented gradients over the plurality of frames.