A one-hand operation method and an electronic device are provided. The method includes: displaying a first interface, where the interface is a user interface displayed on a screen; detecting a first trigger operation of a user; and displaying a floating interface based on the first trigger operation. After the user enables a “floating screen” function, the electronic device determines, based on an obtained length of a thumb of the user and an obtained position at which the user holds the electronic device, a region that can be operated by the user with one hand, and then presents the floating interface in that region.

The present disclosure relates to a door lock having an infrared biometrics information collection device. In certain embodiments, the door lock includes, a door with a door handle for opening the door, an infrared light source, and an infrared biometrics information collection sensor. The infrared light source includes one or more infrared light emitters. The infrared biometrics information collection sensor captures at least one infrared image of biometrics information of the one or more fingers of a target human hand. The fingers are positioned between the infrared light source and the infrared biometrics information collection sensor. The infrared light source irradiates infrared light through one or more fingers to generate infrared images of biometrics information of fingers to be captured by infrared biometrics information collection sensor, infrared images of biometrics information captured are used for user authentications, and the door lock can be unlocked by an authenticated user.

An authentication method executed by a computer, the authentication method including: extracting, when a captured image of a living body is acquired, a biometric image included in a region that corresponds to the living body from the captured image; and performing authentication of the living body on the basis of the extracted biometric image and a position of the biometric image in the captured image.

In some examples, a computing device may display a user interface (UI) to configure a multiple print unlock. The UI may determine a first plurality of prints placed on a touchscreen. Individual prints of the first plurality of prints may include a thumb print or a fingerprint. After the computing device has been inactive for a predetermined amount of time, the UI may lock the computing device. The UI may determine a second plurality of prints placed on a touchscreen and perform a comparison of the second plurality of prints to the first plurality of prints. If the UI determines that the second plurality of prints matches the first plurality of prints, then the UI may unlock the computing device. If the UI determines that the second plurality of prints does not match the first plurality of prints, then the computing device may remain locked.

Systems, methods, apparatuses, and computer program products for contactless image-based blood oxygen estimation. A method may include receiving an image or video of a part of a subject captured by a camera of a computing device. The method may also include extracting a region of interest of the part of the subject from the image or video. The method may further include performing feature extraction of the region of interest. In addition, the method may include estimating a blood oxygen saturation level of the subject based on a spatial and temporal data analysis of more than two color channels. Feature extraction and estimation of the blood oxygen saturation level may include implementing a combination of spatial averaging, color channel mixing, and temporal trend analysis.

The invention relates to a device for biometric identification with the aid of fingerprints and/or hand characteristics, the device comprising a sensor unit (1) directed at the region of an optical gate (2) in a scanning direction (S), wherein the optical gate (2) is adapted to initialize the sensor unit (1) for scanning an in-focus scan image or scan images of the fingers and/or hand of a person, wherein the device further comprises at least one light source (5), which is likewise directed at the region of the optical gate (2), wherein the sensor unit (1), the optical gate (2) and optionally also the light source (5) are coupled to a control and computing module (6) with software for controlling the device and its parts and for scanning a scan image or the scan images of fingers and/or a hand, and for evaluating the fingerprints and/or hand characteristics, wherein the sensor unit (1) is fixedly set to focus into a focal volume (3) which is assigned to the optical gate (2), and the sensor unit (1), the optical gate (2), the control and computing module (6) and optionally also the light source (5) are configured to scan a single in-focus scan image of the fingers and/or the hand at the time of the passage thereof through the focal volume (3).

The technology described in this document can be embodied in a method that includes obtaining, by one or more image acquisition devices, a first image of a portion of a human body under illumination by electromagnetic radiation in a first wavelength range, and obtaining a second image of the portion of the human body under illumination by electromagnetic radiation in a second wavelength range. The method also includes generating, by one or more processing devices, a third image or template that combines information from the first image with information from the second image. The method also includes determining that one or more metrics representing a similarity between the third image and a template satisfy a threshold condition, and responsive to determining that the one or more metrics satisfy a threshold condition, providing access to the secure system.

There is provided a recognition system adaptable to a portable device or a wearable device. The recognition system senses a body heat using a thermal sensor, and performs functions such as the living body recognition, image denoising and body temperature prompting according to detected results.

There is provided a human falling detection system including an image sensor, a thermal sensor and a microphone. The image sensor captures an image frame that is used to identify a face and a height-width ratio of a human image. The thermal sensor is used as a filter for filtering out a living body and captures a thermal image that is used to identify a height-width ratio of a human thermal image. The microphone records a time stamp of an abrupt sound appearing.

The technology described in this document can be embodied in a method that includes obtaining, by one or more image acquisition devices, a first image of a portion of a human body under illumination by electromagnetic radiation in a first wavelength range, and obtaining a second image of the portion of the human body under illumination by electromagnetic radiation in a second wavelength range. The method also includes generating, by one or more processing devices, a third image or template that combines information from the first image with information from the second image. The method also includes determining that one or more metrics representing a similarity between the third image and a template satisfy a threshold condition, and responsive to determining that the one or more metrics satisfy a threshold condition, providing access to the secure system.