Method and system for imaging acquisition

Abstract

Embodiments of the present invention disclose an image capturing method and device, so as to capture different types of biometric characteristic image information rapidly by using a device that can be integrated easily. The method according to the embodiment of the present invention is applied to an image capturing device, and the method includes: turning on a first supplementary lighting source when it is detected through a range sensor that there is an object in a first capturing distance, the first supplementary lighting source being a light source for supplementarily lighting a first biometric characteristic; acquiring first biometric characteristic image information through an imaging element; turning on a second supplementary lighting source when it is detected through the range sensor that there is an object in a second capturing distance, the second supplementary lighting source being a light source for supplementarily lighting a second biometric characteristic; and acquiring second biometric characteristic image information through the imaging element. When acquiring an image, the imaging element cooperates with a corresponding supplementary lighting source, so as to acquire high-quality biometric characteristic image information. Moreover, the image capturing device uses one imaging element and avoids using multiple imaging elements, thus facilitating integration of the device.