US 11,869,265 B2
Object tracking system and object tracking method
Sungwon Byon, Daejeon (KR); Eun Jung Kwon, Daejeon (KR); Hyunho Park, Daejeon (KR); Won-Jae Shin, Daejeon (KR); Dong Man Jang, Sejong-si (KR); Eui Suk Jung, Daejeon (KR); and Yong Tae Lee, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Mar. 4, 2021, as Appl. No. 17/191,981.
Claims priority of application No. 10-2020-0028287 (KR), filed on Mar. 6, 2020.
Prior Publication US 2021/0279455 A1, Sep. 9, 2021
Int. Cl. G06V 40/10 (2022.01); H04N 7/18 (2006.01); G06T 7/20 (2017.01); G06V 20/10 (2022.01)
CPC G06V 40/10 (2022.01) [G06T 7/20 (2013.01); G06V 20/10 (2022.01); H04N 7/185 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An object tracking system, the system comprising:
one or more processors configured to execute instructions; and
a memory storing instructions, wherein execution of the instructions by the one or more processors configure the one or more processors to:
receive an identifier of a terminal and a reference time to track an object corresponding to the identifier;
detect a cross-closed circuit television (CCTV) for the terminal by using a CCTV installation information and a location of the terminal before the reference time;
detect an object repeatedly appearing in the cross-CCTV as a basic image;
detect a current-CCTV currently recording the terminal by detecting a location and a moving direction of the terminal after the reference time;
detect an object appearing in the current-CCTV based on the location and the moving direction of the terminal after the reference time; and
track an object corresponding to the identifier by determining whether the detected object from the current-CCTV is re-identified from the basic image.