The present disclosure relates to a display control method, an electronic device, and a storage medium. The method includes: obtaining at least one frame of sensing data representing motion of a target object relative to an electronic device; predicting a to-be-identified region on the electronic device according to the sensing data; and displaying preset information in the to-be-identified region. The preset information is configured to indicate to input biometric information of the target object.

A fingerprint reading device that can suppress a position shift of a finger, that includes: a placement portion on which a finger is placed; a reading face; a pair of light sources provided on the placement portion and that irradiate the finger with lights; and a reading unit that captures and reads a fingerprint of the finger in contact with the reading face in accordance with lights scattered in the finger and emitted from a surface of the finger, the pair of light sources are provided on both ends of the reading face that are opposed to each other in a width direction of the placement portion and have light guiding parts formed in a front-back direction of the placement portion, respectively, and the light guiding parts are formed so as to extend up to above the ends of the reading face.

A biometric authentication device includes a biometric information sensor to read biometric information of a user, a biometric information storage unit to pre-register biometric information of a registered person as registered biometric information for verification, a determination unit to determine whether or not a captured image captured by the biometric information sensor is suitable for biometric authentication, and to perform biometric authentication by comparing the captured image to the registered biometric information registered in the biometric information storage unit when the determination unit determines that the captured image is suitable for the biometric authentication, and a notification unit to issue a notification indicating that the captured image is unsuitable for the biometric authentication. When the determination unit determines that the captured image is unsuitable for the biometric authentication, the determination unit does not perform the biometric authentication by the authentication unit and causes the notification unit to issue the notification.

The present invention describes a device and method for touchless palmprint acquisition. The method can be applied to a terminal device (including but not limited to mobile phones, tablet computers and other portable devices) with a display screen and a front-facing camera. The camera is used to capture images of palms. The screen is used as a supplementary light source. When lighting condition in the palm area is undesirable, the screen changes its display to improve the lighting condition inside the palm, which increases the recognizability of the palmprint. The palmprint acquisition device and method described in the present invention can be directly applied to existing terminal devices without requiring any additional hardware. By adopting a variety of ways to change the display of the built-in screen of the terminal device, the lighting condition of the palm area will be improved and the recognizability of the palmprint will be increased.

Disclosed is an electronic device that includes a housing including a first plate facing a first direction, the first plate including a fingerprint sensing area, a second plate facing a second direction opposite to the first direction, and a side member interposed between the first and second plates, a touch screen display interposed between the first and second plates and having at least a portion exposed through the first plate of the housing, a fingerprint sensor interposed between the touch screen display and the second plate, and a processor connected to the fingerprint sensor. The processor may determine whether the fingerprint sensing area is contaminated and determine whether to register a fingerprint image captured by the fingerprint sensor based on whether the fingerprint sensing area is contaminated. In addition, it is possible to implement other various embodiment understood through the disclosure.

An electronic device includes a memory storing a plurality of fingerprint reference data files and one or more sensors identifying whether a mechanical support condition of the electronic device is a hand supported condition or a surface supported condition. A fingerprint sensor receives fingerprint data while the electronic device is in the mechanical support condition. One or more processors select a prioritized fingerprint data reference file from the plurality of fingerprint reference data files as a function of the mechanical support condition and authenticate an authorized user of the electronic device by comparing the fingerprint data to the prioritized fingerprint data reference file before comparing the fingerprint data to any other fingerprint reference data files of the plurality of fingerprint reference data files. The prioritized fingerprint reference data file can also be selected as a function of a geometric form factor of the electronic device.

A fingerprint enrollment method and a device related to the field of terminals includes receiving, by a terminal, a first input of a user, displaying, in response to the first input, a fingerprint enrollment interface, displaying at least two fingerprint patterns in the fingerprint enrollment interface, instructing the user to touch a displayed fingerprint pattern, and when the user touches a display position of the fingerprint pattern, enrolling fingerprint information of the user, where each of the at least two fingerprint patterns at least partially overlaps a fingerprint collection area of the touchscreen, and different fingerprint patterns have different overlapping areas with the fingerprint collection area.

A method for analyzing a diagnostic test may include receiving an image depicting a diagnostic test, wherein the diagnostic test comprises a test region indicating a test result, validating quality of the image, locating a test region image portion of the image depicting the test region of the diagnostic test; and predicting the test result based on the test region image portion. Furthermore, a method for facilitating analysis of a diagnostic test may include receiving one or more images depicting one or more control markings on a scan surface, wherein the one or more control markings are representative of one or more predetermined test results for the diagnostic test, and verifying detection of the one or more control markings in the one or more images using at least one computer vision technique.

The invention relates to an image sensor, including a substrate, a unit pixel, a first polarizer, a second polarizer, and readout circuit. First, incident light is emitted to the image sensor, and the first and second polarizers convert incident light into first and second incident lights respectively. Then, the photoelectric conversion element of the unit pixel covered by the first and second polarizers respectively generates first and second electrons after receiving the first and second incident lights respectively. Afterwards, the readout circuit performs subtraction and integral of the first electron and the second electron to generate a voltage signal corresponding to the number of electrons in the actual signal. Finally, repeat the above steps. Thereby, the image sensor of the invention effectively increases the full well capacity of the equivalent unit pixel, so as to improve the signal-to-noise ratio of the image sensor of the invention.

Provided is a data transmission system including analog image frame buffer, line analog-to-digital converter, line buffer memory, and an interface. First, the analog image frame buffer stores the image data lines generated from the image sensor as analog signals, and then the line analog digital converter which is electrically connected to the analog image frame buffer converts the image data lines from analog signals to digital signals. Then, the image data lines converted into digital signals are stored in one of the line buffer memories. Then, according to the user's needs, the image data line of the digital signal is temporarily stored in another line buffer memory. Finally, according to the instructions of the master device, the interface outputs the image data lines of digital signals according to the conversion order of the line analog to digital converter.