Patent ID: 9619696
Date: 2017-04-11
CPC Classifications: G06K

Claim:
1. A method for detecting faces in video image frames, the method implemented on a computing device and comprising: comparing a current image frame to a previously processed image frame to determine similarity based on a threshold percent of deviance between said current and previously processed image frames; discarding said current image frame if said current image frame and said previously processed image frame are similar according to said comparing of image frames; if said current image frame and said previously processed image frame are not similar according to said comparing of image frames, detecting at least one detected facial image in said current image frame; comparing a location within said current image frame for said at least one detected facial image to a location within an associated image frame for at least one most recently stored facial image stored in a most recently used (MRU) cache; discarding said at least one detected facial image if said location within said current frame and said location within an associated image frame are similar according to said comparing of locations; if said location within said current image frame for said at least one detected facial image and said location within an associated image frame are not similar according to said comparing of locations, comparing said at least one detected facial image to said at least one most recently stored facial image stored in said MRU cache to determine similarity based on a threshold percent of deviance between said detected and most recently stored facial images; discarding said at least one detected facial image if said at least one detected facial image and said at least one most recently stored facial image are similar according to said comparing of facial images; and storing said at least one detected facial image in said MRU cache if said at least one detected facial image and said at least one most recently stored facial image are not similar according to said comparing of image frames.