Abstract:
A method and device for controlling an irradiating light for photographing an iris is provided. The device includes a light source configured to generate light, an active lens configured to adjust a refractive index of light passing through the active lens, an image capturer configured to capture an image of the iris by using a camera, and a controller configured to control the active lens to change the refractive index of the light passing through the active lens based on distance, motion and ambient light levels.
Abstract:
A wearable device includes a display; a sensor configured to obtain a biometric information of a user; a memory configured to store at least one instruction; and at least one processor configured to execute the at least one instruction to: based on an event related to executing an application, identify execution of biometric authentication associated with the application; based on the identification, display a message indicating information corresponding to the biometric authentication to be performed in the wearable device; obtain, by the sensor, the biometric information of the user wearing the wearable device; identify authority using the obtained biometric information and registered biometric information stored in the memory; and display, by the display, a screen associated with the executed application based on the identified authority.
Abstract:
A head mounted device (HMD) includes an imaging unit configured to capture at least one image of a partial region of an iris, an electrocardiogram (ECG) sensor configured to receive an ECG signal, and a control unit configured to acquire at least one image of the partial region of the iris and ECG signals, and authenticate a user by using the acquired image(s) of the partial region of the iris and the ECG signals.
Abstract:
A method for a device to acquire biometric information includes acquiring a plurality of images including an ocular region using an infrared ray (IR) image sensor, detecting a sclera region in each of the plurality of acquired images, sensing a change of the detected sclera region, and determining biometric information based on information on the sensed change of the sclera region.
Abstract:
A wearable device includes: a sensor configured to capture a vein image of a user; and a processor configured to control the sensor to capture the vein image of the user wearing the wearable device when a function or an application is selected, identify the user by comparing the captured vein image with at least one registered vein image, and execute the function or the application when the user has execution authority.
Abstract:
Disclosed are a method and apparatus for controlling a booster circuit such that maximum power is extracted from a power supply while power consumption for monitoring power generated by the power supply is reduced, and an apparatus for extracting maximum power by using the method and apparatus for controlling a booster circuit.