US 12,456,205 B2
Method and apparatus with object tracking using dynamic field of view
Jingtao Xu, Beijing (CN); Yiwei Chen, Beijing (CN); Feng Qiu, Beijing (CN); Byung In Yoo, Seoul (KR); Changbeom Park, Seoul (KR); Hyunjeong Lee, Seoul (KR); Jaejoon Han, Seoul (KR); Qiang Wang, Beijing (CN); and Jiaqian Yu, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 3, 2021, as Appl. No. 17/541,753.
Claims priority of application No. 202011412120.4 (CN), filed on Dec. 4, 2020; and application No. 10-2021-0136809 (KR), filed on Oct. 14, 2021.
Prior Publication US 2022/0180531 A1, Jun. 9, 2022
Int. Cl. G06T 7/246 (2017.01); G06T 7/292 (2017.01); G06V 10/22 (2022.01); G06V 10/40 (2022.01)
CPC G06T 7/246 (2017.01) [G06T 7/292 (2017.01); G06V 10/22 (2022.01); G06V 10/40 (2022.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method with object tracking, the method comprising:
determining a first target tracking state indicating whether a tracking state of a target that has been detected is stable by tracking the target from a first image frame using a first search region of the first image frame, the first search region having a first region size;
determining, based on a result of the determining of the first target tracking state and the first region size, a second region size for a second search region of a second image frame from among a plurality of predetermined reference region sizes; and
generating a second target tracking result by tracking a target from the second image frame by using the second search region of the second image frame, the second search region having the second region size,
wherein the first region size and the second region size are selected from a first reference region size, a second reference region size, and a third reference region size, among the plurality of predetermined reference region sizes,
wherein the second reference region size is greater than the first reference region size,
wherein the third reference region size is less than the first reference region size, and
wherein the determining of the second region size comprises:
when the first region size is the first reference region size, determining the second region size as the second reference region size in response to the first target tracking state being a second state, determining the second region size as the third reference region size in response to the first target tracking state being a first state, and determining the second region size as the first reference region size in response to the first target tracking state being a third state;
when the first region size is the second reference region size, determining the second region size as the second reference region size in response to the first target tracking state being the second state, determining the second region size as the first reference region size in response to the first target tracking state being the first state, and determining the second region size as the second reference region size in response to the first target tracking state being the third state; and
when the first region size is the third reference region size, determining the second region size as the first reference region size in response to the first target tracking state being the second state, determining the second region size as the third reference region size in response to the first target tracking state being the first state, and determining the second region size as the third reference region size in response to the first target tracking state being the third state.