Patent ID: 8103090

Claim:
A video processing system comprising: one or more computer processors configured to: receive first training video samples from a plurality of video sensing devices, the first training video samples comprising substantially similar subject matter; generate a first training probability density function using features extracted from the first training video samples; receive second training video samples from the plurality of video sensing devices, the second training video samples comprising insubstantially similar subject matter; and generate a second training probability density function using features extracted from the second training video samples; wherein the features extracted from the first training video samples are extracted from a plurality of sub-images in the first training video samples, wherein the features extracted from the second training video samples are extracted from a plurality of sub-images in the second training video samples, wherein a location in a video frame of each sub-image in the second video training samples corresponds to a substantially similar location in a video frame for each corresponding sub-image in the first training video samples, and wherein the sub-images in the first training video samples and the sub-images in the second video training samples are non-contiguous within a field of view of the plurality of video sensing devices.