Image acquisition system and image acquisition method

Abstract

An embodiment of the present invention discloses an image acquisition system. The system comprises a light sensor, a controller, a rotary multi-filter apparatus and an imager, wherein the light sensor is used for obtaining light illuminance data in a target environment; the controller is used for generating a corresponding first control instruction according to the light illuminance data; the rotary multi-filter apparatus is used for switching a filter to a corresponding target filter in the target environment according to the first control instruction; and the imager is used for obtaining an image in the target environment after the target filter adjusts light intensity in the target environment. An embodiment of the present invention further provides an image acquisition method. According to the image acquisition system and the image acquisition method, images in different environments can be acquired; filters can be switched with environment changes; and the light intensity in the target environment can be adjusted by the target filter, so as to obtain an image with higher quality. Therefore, the workload can be reduced, equipment costs can be reduced, and device miniaturization can be facilitated.

Description

technical field [0001] Embodiments of the present invention relate to the technical fields of security authentication technology and human biometric feature recognition, and in particular, to an image acquisition system and an image acquisition method. Background technique [0002] Biometric identification technology is currently the most convenient and safe identification technology. Biometric identification technology can use human physiological and behavioral characteristics for identification. Among them, face recognition is a hot spot in the field of biometric identification. Compared with the widely used fingerprint recognition technology, face recognition has the advantages of intuitiveness, convenience, non-contact and high user contact. [0003] Traditional facial image acquisition equipment is greatly affected by light during use, and ambient light directly affects the image quality captured by the facial image acquisition equipment. In the prior art, a method is ...

AI Technical Summary

Problems solved by technology

If the number of imaging units is small, it is difficult to capture a suitable image. If the number of imaging units is large, the exposure parameters of each imaging unit need to be adjusted reasonably, which increases the workload and increases the cost of equipment. Too many imaging units It will also affect the volume of the equipment, which is not conducive to the miniaturization of the equipment

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