| CPC G06V 20/52 (2022.01) [G06V 10/761 (2022.01); G06V 20/35 (2022.01); G06V 40/10 (2022.01); G06V 40/20 (2022.01); G08B 21/182 (2013.01)] | 19 Claims |

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1. A computer-implemented method comprising:
receiving, from a camera, a first video clip indicative of an event;
determining, from the first video clip, a category for the first video clip;
determining, for the first video clip and based on the category, a difference threshold;
receiving, from the camera, a second video clip;
determining, for the first video clip and the second video clip, a difference score; and
in response to determining that the difference score for the first video clip and the second video clip meets the difference threshold, providing an alert.
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