US 11,889,180 B2Granted

Photographing method and electronic device

AssigneeHuawei Technologies Co., Ltd.

InventorsTao Shen, Jun Wang, Yang Li, Yanpeng Ma

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Abstract

A photographing method and an electronic device are provided, so that a to-be-photographed target can continue to be tracked after the to-be-photographed target returns to a shooting image, to improve accuracy of focusing performed during photographing of a moving object. The method includes: displaying a first image including a first object and a tracking indicator that is associated with the first object, the tracking indicator indicating that the first object is a tracked target; displaying a second image that does not include the first object or the tracking indicator; displaying a third image including the first object; automatically setting the first object as the tracked target and displaying the tracking indicator associated with the first object; and automatically focusing on the first object when displaying the third image.

Claims20

Dependent claims

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.

8 more elements

An electronic device, comprising:

one or more processors;
and
a non-transitory computer-readable medium, having computer-executable instructions stored thereon, the computer-executable instructions, when executed by one or more processors, causing the one or more processors to facilitate:
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;
and
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.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/420,939Filed 13 Dec 2019
Priority: CN 201910005608.63 Jan 2019
Published: US 2022/0094858 A124 Mar 2022
Granted: 30 Jan 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

G06V 20/40
Scenes; Scene-specific elements: in video content
H04N 23/632
Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters: for displaying or modifying preview…
G06V 10/761
Image or video pattern matching; Proximity measures in feature spaces: proximity, similarity or dissimilarity measures
H04N 23/61
Control of cameras or camera modules: based on recognised objects