US 12,315,319 B2
Tailgating detection using multimodal entry data
Abhijeet Shenoi, San Francisco, CA (US); and Sagar Kashinath Honnungar, Mountain View, CA (US)
Assigned to HAKIMO INC., Menlo Park, CA (US)
Filed by HAKIMO INC.
Filed on May 16, 2023, as Appl. No. 18/318,226.
Prior Publication US 2024/0386766 A1, Nov. 21, 2024
Int. Cl. G07C 9/15 (2020.01); G06T 7/70 (2017.01); G06V 20/40 (2022.01); G06V 20/52 (2022.01); G06V 40/16 (2022.01); G07C 9/00 (2020.01)
CPC G07C 9/15 (2020.01) [G06T 7/70 (2017.01); G06V 20/41 (2022.01); G06V 20/52 (2022.01); G06V 40/168 (2022.01); G06V 40/172 (2022.01); G07C 9/00571 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/30201 (2013.01); G06T 2207/30232 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
circuitry configured to:
receive data from an access control system for a physical entry point;
detect, based on the data, an event that indicates a grant to access a physical area via the physical entry point;
receive entry information that indicates a set of authentications provided by the access control system within a defined period from a time of the detection of the event;
receive a video from at least one imaging device;
extract, from a portion of the video, object detection information that indicates a set of entries that corresponds to the defined period;
determine cost information based on a difference between a time of each entry of the set of entries and a time of each authentication of the set of authentications;
execute a matching operation on the cost information;
determine a minimum cost association between each authentication of the set of authentications and a corresponding entry of the set of entries based on the executed matching operation;
determine a correspondence between a subset of the set of entries and the set of authentications based on the minimum cost association;
detect, from the set of entries, one or more entries that are different from the subset as one or more tailgating entries; and
control an output device to render tailgating information based on the one or more tailgating entries.