Image acquisition method and device, storage medium and electronic equipment

Abstract

An image acquisition method and device, a storage medium and an electronic device are disclosed. The image acquisition device comprises: a light-transmitting cover plate having a first surface and a second surface opposite to each other in a thickness direction, the first surface of the light-transmitting cover plate being adapted to be in contact with an object to be acquired; a light source component provided with a first surface and a second surface which are opposite to each other in the thickness direction, and the first surface of the light source component is arranged towards the secondsurface of the light-transmitting cover plate; and a sensor member provided on a second surface of the light source member; wherein the sensor member is formed by splicing a plurality of sensor modules, and the plurality of sensor modules are distributed on the same plane. According to the scheme provided by the invention, large-area imaging can be realized in a multi-block splicing manner, so that the requirement of intelligent equipment on a large-size screen is met, the data processing speed is high, and the manufacturing and maintenance cost is favorably reduced.

Description

technical field [0001] The present invention relates to the technical field of image acquisition, in particular to an image acquisition method and device, a storage medium, and electronic equipment. Background technique [0002] With the development of information technology, biometric identification technology is playing an increasingly important role in ensuring information security. Among them, fingerprint identification has become one of the key technical means for identification and device unlocking widely used in the mobile Internet field. [0003] Under the trend of increasing screen-to-body ratio of smart devices, traditional capacitive fingerprint recognition technology can no longer meet the demand, while ultrasonic fingerprint recognition technology has problems in terms of technology maturity and cost. Therefore, optical fingerprint recognition technology It is expected to become the mainstream technical solution of fingerprint recognition. [0004] Existing opt...

AI Technical Summary

Problems solved by technology

[0006] However, as the screen-to-body ratio of smart devices continues to increase, as well as the concept of full-screen devices and the advent of full-screen products, the production capacity of existing optical under-screen fingerprint recognition devices based on the principle of total reflection cannot meet the full-screen requirements of smart devices.

[0007] On the other hand, in order to meet the fingerprint recognition requirements of smart devices with a high screen-to-body ratio, it is necessary to increase the photosensitive area of ​​the optical fingerprint recognition device, which will lead to a sharp increase in the number of pixels of the optical fingerprint recognition device, which in turn will lead to an increase in the number of optical fingerprint recognition devices. The data processing speed of the device is severely reduced every time an image is output

[0008] In addition, the increase in the photosensitive area and pixels will also lead to an increase in the manufacturing cost of the optical fingerprint identification device.

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