US 11,657,613 B2
Zone based object tracking and counting
Raka Singh, Bangalore (IN); and Anil M Sripadarao, Bangalore (IN)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Nov. 19, 2020, as Appl. No. 16/952,477.
Claims priority of provisional application 63/064,073, filed on Aug. 11, 2020.
Prior Publication US 2022/0051026 A1, Feb. 17, 2022
Int. Cl. G06V 20/52 (2022.01); G08B 13/24 (2006.01); G08B 13/196 (2006.01); G06T 7/00 (2017.01); G06V 20/40 (2022.01)
CPC G06V 20/52 (2022.01) [G06T 7/0004 (2013.01); G06V 20/41 (2022.01); G08B 13/19608 (2013.01); G08B 13/248 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A system for detecting an object using one or more sensors, the system comprising:
a processor circuit; and
a memory circuit for storing one or more instructions that, when performed by the processor, configure the processor to perform operations comprising:
detecting an object in a first zone of a plurality of zones of an area, the plurality of zones comprising a first collection of zones that is parallel to a second collection of zones, the first collection of zones comprising the first zone and a second zone, the object moving along a direction through the first collection of zones;
determining that the object has moved from the first zone to the second zone of the first collection of zones;
determining whether movement of the object from the first zone to the second zone fails to satisfy a zone transition criterion for updating a count value in response to determining that the object has passed through a given zone in the second collection of zones, that is parallel to the first collection of zones, between being determined to move from the first zone to the second zone of the first collection of zones;
determining whether an amount of time taken for the object to move from the first zone to the second zone fails to satisfy a time criterion for updating the count value; and
based on determining whether the movement of the object from the first zone to the second zone fails to satisfy the zone transition criterion and based on determining whether the amount of time taken for the object to move from the first zone to the second zone fails to satisfy the time criterion, preventing the count value from being updated.