Honor Device Co., Ltd.

Huawei Technologies Co., Limited

Jiangfeng Yuan

Yu Zhang

Junwei Zhou

Jianming Lv

Guoqiao Chen

Zhichao Li

Yichao Zhang

Chuan Liao

Kun Ma

Zhi Chang

Xiaogang Feng

Gang Cui

Mengyou Yuan

Embodiments of this application relate to the terminal field, and provide a method and an apparatus for facial recognition so as to improve security of facial recognition. The method is applied to an electronic device, where the electronic device includes a TOF camera module, and the TOF camera module includes a transmitter configured to transmit a light signal. The method includes: receiving a first operation by a user, where the first operation is used to trigger the TOF camera module to work; controlling the transmitter to work at a first current value; controlling, in a case that the transmitter is working at a first current value, the transmitter to work at a second current value, where the second light intensity is higher than the first light intensity.

Method and apparatus for facial recognition

A first frame of time of flight (TOF) data including projection off data and infrared data is obtained, and after determining that a data block satisfying that a number of data points with values greater than a first threshold is greater than a second threshold is present in the infrared data, TOF data for generating a first frame of a TOF image is obtained based on a difference between the infrared data and the projection off data. Because the data block satisfying the number of data points with values greater than the first threshold is greater than the second threshold is an overexposed data block, and the projection off data is TOF data acquired by a TOF camera with a TOF light source being off, the difference between the infrared data and the projection off data can correct the overexposure, improving quality of the first frame of the TOF image.

Data obtaining method and apparatus

This application provides a data processing method and an apparatus. The data processing method includes: acquiring a first frame of time-of-flight (TOF) data; processing the first frame of TOF data into a TOF image; and performing face recognition by using the first frame of TOF image to obtain a recognition result. When TOF data is used for face recognition, higher security can be achieved. In addition, the first frame of TOF image is used for face recognition immediately after the first frame of TOF image is obtained, so that the execution speed is high. Because the TOF data is less affected by light, a high-quality TOF image can be obtained even if the first frame of TOF data is used, and therefore, the recognition accuracy is high.

Data processing method and apparatus

Embodiments of this application provide a face recognition method and apparatus, including: obtaining TOF data; processing the TOF data into a TOF image in a TEE; and performing face recognition by using the TOF image, to obtain a recognition result. Because the TOF data is used for face recognition, higher security is achieved. Implementation in the TEE can further improve the security.

Face recognition method and apparatus

Embodiments of this application provide a method for obtaining depth information and an electronic device, which is applied to the field of image processing technologies and can help an electronic device improve accuracy of obtaining depth information. The electronic device includes a first camera, a second camera, and an infrared projector. The electronic device receives a instruction to obtain depth information of a target object; transmits infrared light with a light spot by an infrared projector; collects first image information of the target object by using the first camera; collects second image information by using the second camera, where the first and second image information include a feature of the target object and a texture feature formed by infrared light; and calculates depth information of the target object based on the first and second image information, the first length, lens focal lengths of the first camera and the second camera.

Method and device for obtaining depth information from infrared light pattern projection

A facial recognition method includes receiving, by an electronic device, a first instruction triggering the electronic device to perform facial recognition, emitting in response to the first instruction, infrared light with a light spot using an infrared projector, collecting first image information of a first object using a first camera, collecting second image information of the first object using a second camera, calculating depth information of the first object based on the first image information, the second image information, the first length, a lens focal length of the first camera, and a lens focal length of the second camera, and performing user identity verification on the first object using the first image information and the depth information of the first object.

Facial recognition method and electronic device

In a power supply system, when a power supply is inserted into a power interface of the OTG peripheral, the power supply supplies power to a USB secondary device connected to a second USB interface of the OTG peripheral; and when the power supply is inserted into the power interface of the OTG peripheral, the OTG peripheral outputs a high-level pulse by using the first USB interface of the OTG peripheral, so as to trigger a terminal connected to the first USB interface to stop supplying power to the USB secondary device; and in addition, the OTG peripheral enables, after a delay of a preset safe time, the power supply to supply power to the terminal connected to the first USB interface.

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Shenzhen, China

Jiangfeng Yuan