US 12,266,223 B2
Parking lot management and control method based on object activity prediction, and electronic device
Geni Xue, Xi'an (CN)
Assigned to XI'AN CREATION KEJI CO. ,LTD., Xi'An (CN)
Appl. No. 17/256,911
Filed by Xi'an Creation Keji CO., Ltd., Xi'an (CN)
PCT Filed Dec. 26, 2020, PCT No. PCT/CN2020/139754
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2022/134120, PCT Pub. Date Jun. 30, 2022.
Prior Publication US 2023/0222844 A1, Jul. 13, 2023
Int. Cl. G06K 9/00 (2022.01); G06T 7/73 (2017.01); G06V 20/52 (2022.01); G07B 15/02 (2011.01)
CPC G07B 15/02 (2013.01) [G06T 7/73 (2017.01); G06V 20/52 (2022.01); G06T 2207/30232 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A parking lot management and control method based on object activity prediction, comprising:
obtaining a scene video of a parking lot;
detecting and tracking objects in the scene video to generate a spatial AND-OR graph model of the parking lot, where the spatial AND-OR graph model represents spatial position relationships of the objects in the scene video;
performing a sub-activity extraction on the spatial AND-OR graph model to obtain a sub-activity tag set representing activity states of concerned ones of the objects;
inputting the sub-activity tag set into a temporal AND-OR graph model to obtain a future activity prediction result of the concerned ones of the objects in the parking lot, wherein the temporal AND-OR graph model is obtained according to a pre-established object-activity corpus of the parking lot; and
transmitting control information, based on the future activity prediction result of the concerned ones of the objects, to a device corresponding to the parking lot.