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1. (WO2018219012) THREE-DIMENSIONAL VEIN IDENTIFICATION DEVICE AND METHOD, SWITCH, AND MOBILE TERMINAL

Pub. No.:    WO/2018/219012    International Application No.:    PCT/CN2018/078993
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Mar 15 00:59:59 CET 2018
IPC: G06K 9/00
Applicants: YANNAN GUOCHUANG TECHNOLOGY (BEIJING) CO., LTD.
燕南国创科技(北京)有限公司
Inventors: LI, Xiangming
李向明
Title: THREE-DIMENSIONAL VEIN IDENTIFICATION DEVICE AND METHOD, SWITCH, AND MOBILE TERMINAL
Abstract:
Disclosed are a three-dimensional vein identification device and method, a switch, and a mobile terminal. The device comprises: a light source, a microlens array, an image sensor, a three-dimensional vein image processor, and a three-dimensional vein identifier. The microlens array comprises an outer surface, an inner surface, and an edge part. The light source is provided at a side of the edge part. The image sensor is provided at a side of the inner surface. The image sensor is connected to the three-dimensional vein image processor. The three-dimensional vein image processor is connected to the three-dimensional vein identifier. Embodiments allow a reflected light shone on a finger of a user by the light source to be shone on the microlens array to produce two or three or more two-dimensional vein images, angular and depth transformation processing is performed with respect to the two-dimensional vein images by the three-dimensional vein image processor to acquire vein depths, and the two or three or more two-dimensional vein images are converted into one three-dimensional vein image on the basis of two or three or more vein depths, thus implementing three-dimensional vein identification of an increased degree of precision.