Patent Document ID: 9686470
Application ID: 14502128
Patent Status: 1

Claim One:
1. A non-transitory program storage device, readable by a programmable control device and comprising instructions stored thereon to cause the programmable control device to: obtain a set of two or more image frames in an image sequence; downscale each of the obtained image frames in the set in its entirety, thereby generating a first downscaled version of each image frame, wherein the first downscaled version of each image frame consists of a first plurality of samples; calculate a coefficient of variation for each of the first plurality of samples in the first downscaled version of a last received image frame in the set, wherein the coefficient of variation for each sample in the first downscaled version of the last received image frame in the set is calculated based, at least in part, on the corresponding sample in the first downscaled version of each of the other image frames in the set; and detect motion in the last image frame in the set by comparing each of the calculated coefficients of variation in the first downscaled version of the last received image frame in the set to a threshold value.