US 11,889,180 B2
Photographing method and electronic device
Tao Shen, Shanghai (CN); Jun Wang, Shanghai (CN); Yang Li, Moscow (RU); and Yanpeng Ma, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 17/420,939
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Dec. 13, 2019, PCT No. PCT/CN2019/125067
§ 371(c)(1), (2) Date Jul. 6, 2021,
PCT Pub. No. WO2020/140726, PCT Pub. Date Jul. 9, 2020.
Claims priority of application No. 201910005608.6 (CN), filed on Jan. 3, 2019.
Prior Publication US 2022/0094858 A1, Mar. 24, 2022
Int. Cl. H04N 23/63 (2023.01); G06V 10/74 (2022.01); H04N 23/611 (2023.01)
CPC H04N 23/632 (2023.01) [G06V 10/761 (2022.01); H04N 23/611 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A photographing method, comprising:
generating a feature model comprising a plurality of to-be-photographed targets based on to-be-photographed objects comprised in a plurality of shooting images, wherein the to-be-photographed targets associate with a plurality of image features and the plurality of shooting images are obtained before a first shooting image;
obtaining the first shooting image comprising one or more to-be-photographed objects;
determining a to-be-photographed object in the first shooting image as a to-be-tracked target in response to the to-be-photographed object matching a to-be-photographed target in the feature model; and
tracking the to-be-tracked target in a number of shooting images following the first shooting image;
wherein for each of shooting images following the first shooting image, the tracking of the to-be-tracked target is active when the shooting image comprises a to-be-photographed object matching the to-be-tracked target, and the tracking of the to-be tracked target is inactive when the shooting image does not comprise a to-be-photographed object matching the to-be-tracked target;
wherein tracking the to-be-tracked target in the number of shooting images following the first shooting image further comprises:
initiating a timer in response to the tracking of the to-be-tracked target being active in a previous shooting image and the tracking of the to-be-tracked target being inactive in a current shooting image;
obtaining a next shooting image;
in response to the timer indicating a time interval less than a preset time length, determining one or more to-be-photographed objects in the next shooting image, and terminating the timer when a to-be-photographed object in the next shooting image matches the to-be-tracked target, and
in response to the timer indicating a time interval greater than or equal to the preset time length, determining a next to-be-tracked target in the next shooting image and terminating the timer.