Biological feature recognition method and device, and electronic equipment thereof

Abstract

The invention discloses a biometric feature recognition method and a device, and electronic equipment thereof. The biometric feature recognition method comprises the following steps: acquiring light intensity information of a biometric feature external environment; generating a light source having an exposure amount corresponding to the light intensity information based on a plurality of thresholdintervals; carrying out exposure operation by adopting the light source so as to acquire a biological characteristic image; and analyzing, identifying and / or storing the biological characteristics ofthe biological characteristic image, the exposure being positively correlated with the ambient light energy represented by the light intensity information, and updating and adjusting a threshold interval according to a biological characteristic identification result. According to the method, the light source with the exposure corresponding to the light intensity information is dynamically generated through the external environment light intensity information, the threshold interval and the biometric feature recognition result so as to acquire the biometric feature image, and the power consumption of the biometric feature recognition device is reduced while the biometric feature recognition efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of biological feature identification, in particular to a biological feature identification method, device and electronic equipment thereof. Background technique [0002] With the continuous development of biometric identification technology, biometric identification is widely used in mobile terminal devices. Users can wake up the device and secure payment by touching the terminal device with fingers, palms or iris recognition, which is convenient, fast and safe. Improved user experience. At present, in order to increase the proportion of the terminal screen, an optical biometric device is often installed under the screen of the terminal device, and the biometric feature is constructed on the luminous screen and the biometric image data is obtained. [0003] However, when the light intensity and / or brightness of the external environment changes, if a light source with the same exposure is still provi...

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Problems solved by technology

[0003] However, when the light intensity and / or brightness of the external environment changes, if a light source with the same exposure is still provided to the biometrics to be collected for imaging, the biometric imaging effect will be poor and the biometric recognition efficiency will be reduced. And in the case of weak light in the external environment, it will cause the problem of high power consumption of the mobile terminal

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