Patent ID: 8457356
Filing Date: 2013-06-04
Classification: G06K,G06T

Abstract:
1. A computer-assisted method of tracking via video one or more objects moving in an area, the computer having a processor, the method comprising: receiving via the processor a video signal of the area including an image frame, the image frame having a plurality of pixels; defining a first tracking box surrounding the one or more objects in the image frame at a first time; determining first foreground pixels, first background pixels and first changing pixels in the first tracking box; defining a plurality of second tracking boxes in the image frame in the vicinity of the first tracking box, each second tracking box having second foreground pixels, second background pixels and second changing pixels; determining a signal-to-noise ratio for each of the plurality of second tracking boxes; and tracking the one or more objects by selecting the second tracking box having a highest signal-to-noise ratio as a new first tracking box.