公开(公告)号：US20180012463A1

公开(公告)日：2018-01-11

申请号：US15207459

申请日：2016-07-11

申请人： GOOGLE INC.

发明人： Rizwan Ahmed Chaudhry ,  Navneet Dalal ,  Jonathan Ben Meshulam ,  George Alban Heitz, III

IPC分类号： G08B13/196 ,  G06K9/00

CPC分类号： G06K9/00765 ,  G06K9/00369 ,  G06K9/00771 ,  G06K9/46 ,  G06K9/6219 ,  G06K2009/00738 ,  G06T7/246 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/30196 ,  H04N7/18 ,  H04N7/181

摘要： The various embodiments described herein include methods, devices, and systems for providing event alerts. In one aspect, a method includes: (1) obtaining a video feed, the video feed comprising a plurality of images; and, (2) for each image, analyzing the image to determine whether the image includes a person, the analyzing including: (a) determining that the image includes a potential instance of a person by analyzing the image at a first resolution; (b) in accordance with the determination that the image includes the potential instance, denoting a region around the potential instance; (c) determining whether the region includes an instance of the person by analyzing the region at a second resolution, greater than the first resolution; and (d) in accordance with a determination that the region includes the instance of the person, determining that the image includes the person.