Patent attributes
A surveillance system includes a lower definition video camera and a higher definition video camera. The higher definition video is not recorded, generally, but video produced by the lower definition video camera is processed and compared to predefined videographic patterns to determine whether one or more events corresponding to the predefined videographic patterns has occurred. Likewise, inputs from other sources, such as audio, can be evaluated to determine if any predefined events have occurred. Upon determining that a predefined or triggering event has occurred, then video from the higher definition camera is recorded.