Biometric information collection method, biometric information collection device, and terminal
A biometric information and collection method technology, which is applied in the directions of instruments, calculations, character and pattern recognition, etc., can solve the problems of low collection efficiency and long collection time of biometric information, so as to improve collection efficiency, reduce data volume, reduce The effect of acquisition time
Active Publication Date: 2021-03-09
SHENZHEN CHIPSAILING TECH CO LTD
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[0003] However, when collecting biometric information through an image sensor that matches the size of the display screen, in the prior art, all pixels of the image sensor need to be fully scanned and collected. Due to the large area of the display screen, the corresponding needs The number of pixels on the collected image sensor is large, so it takes a long time to collect biometric information and the collection efficiency is not high
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[0028] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0029] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0030] The embodiment of the present invention is applied to a terminal with an image sensor, the image sensor includes a pixel array composed of more than two pixels, and each pixel in the pixel array senses the biometric information to be collected, the The pixel sig...
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The invention is applicable to the technical field of biological feature identification, and provides a biological feature information collection method, a biological feature information collection device and a terminal. Applied to a terminal with an image sensor, the image sensor includes a pixel array composed of more than two pixels, and when each pixel in the pixel array senses biometric information to be collected, the pixel generated by the pixel The signal is greater than a preset threshold; the biometric information collection method includes: detecting pixel signals generated by pixels at n preset positions in the pixel array; determining pixels whose generated pixel signals are greater than the preset threshold as target pixels ; Based on the position information of each target pixel in the pixel array, generate at least one collection area on the pixel array, and collect biometric information on the at least one collection area. The invention can reduce the amount of collected data, reduce the collection time and improve the collection efficiency.
Description
technical field [0001] The invention belongs to the technical field of biological feature identification, and in particular relates to a biological feature information collection method, a biological feature information collection device, a terminal and a computer-readable storage medium. Background technique [0002] At present, biometric identification technology is widely used in various terminals due to its convenience, accuracy and security. For example, many mobile terminals such as mobile phones and tablets are equipped with the function of unlocking through fingerprint identification. When performing biometric identification, it is first necessary to collect biometric information. With the advancement of technology, more and more terminals tend to be equipped with larger-sized display screens, and the image sensor that matches the size of the display screen is used to collect and The biometric information of the object to be collected that is in contact with the scre...
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IPC IPC(8): G06K9/20
CPCG06V10/22
Inventor 李谋涛于泽
Owner SHENZHEN CHIPSAILING TECH CO LTD