Abstract: 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 a.chieved. 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.

Abstract: 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.

Abstract: Embodiments of this application provide a method for obtaining depth information and an electronic device. The method is applied to the field of image processing technologies and can help an electronic device improve accuracy of obtaining depth information. A specific solution includes: The electronic device includes a first camera, a second camera, and an infrared projector.

Abstract: 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.

Abstract: 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.

Abstract: 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.