Patent ID: 8041075
Filing Date: 2011-10-18
Classification: G06T

Abstract:
1. A method of selectively tracking an object appearing in a video sequence comprising a plurality of frames, each frame comprising a plurality of pixels, the method comprising: (i) comparing first and second frames of the video sequence to identify a region of pixels therein representing an object having inter-frame motion; (ii) determining whether said region appears in a predetermined number of subsequent frames, and, if so, assigning a motion parameter ζ (iii) comparing said motion parameter ζ (iv) if said motion parameter ζ wherein the motion parameter ζ where σ cx 2 and σ cy 2 are the positional variances, of a reference point on said region, in x and y directions, respectively, σ vx 2 and σ vy 2 are the velocity variances in x and y directions of movement of said region, respectively, and τ is a predetermined constant.