Finger vein identification method, apparatus and vein authentication terminal device

A finger vein and identification method technology, applied in the field of authentication, can solve the problems of complex processing methods, difficult to guarantee cameras, and increased sampling rejection rate.

Inactive Publication Date: 2015-08-26
HITACHI BUILDING TECH GUANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vein authentication terminal device is non-contact sampling, that is, the sampled finger is in a suspended state during the sampling process, so it is difficult to ensure that the finger plane is perpendicular to the camera when the camera captures the finger image, so that the sampling image and the sample There is a large difference in the image, resulting in an increase in the rejection rate of sampling and a reduction in the recognition ability of the device
[0003] At present, the relevant m...

Method used

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  • Finger vein identification method, apparatus and vein authentication terminal device
  • Finger vein identification method, apparatus and vein authentication terminal device
  • Finger vein identification method, apparatus and vein authentication terminal device

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Embodiment 1

[0034] see figure 2 Shown is a schematic flow chart of an embodiment of the finger vein recognition method of the present invention. Such as figure 2 As shown, the finger vein recognition method in the present embodiment includes the following steps:

[0035] Step S101: After detecting that the sampled finger enters the recognition area, control the image acquisition device to rotate around the sampled finger;

[0036] Here, the sampled finger refers to the finger of the sampled person;

[0037] Here, the recognition area refers to the area between the infrared light-emitting device and the image acquisition device, which is the area where the image acquisition device can effectively sample the image of the sampled finger (or the sampled finger vein);

[0038] Here, the image acquisition device can be an image acquisition sensor, a CCD (Charge Coupled Device, charge-coupled device image sensor) camera, or a camera, generally using a CMOS (CMOS (Complementary Metal Oxide S...

Embodiment 2

[0058] According to the above-mentioned finger vein recognition method of the present invention, the present invention also provides a finger vein recognition device, and an embodiment of the finger vein recognition device of the present invention will be described in detail below. For the convenience of explanation, Figure 4 Only a schematic structural view of the finger vein recognition embodiment of the present invention is shown.

[0059] Such as Figure 4 As shown, the finger vein recognition device of the present invention includes a detection device 301, a first control device 302, a first image acquisition device 303, a first rotation device 304, and a first processing device 305, wherein:

[0060] The detection device 301 is used to detect the information that the sampled finger enters the recognition area;

[0061] The first control device 302 is configured to send a rotation instruction to the first rotation device 304 and send a rotation shooting instruction to ...

Embodiment 3

[0073] According to the above-mentioned finger vein recognition method of the present invention, the present invention also provides a finger vein recognition device, and an embodiment of the finger vein recognition device of the present invention will be described in detail below. For the convenience of explanation, Figure 6 Only a schematic structural view of an embodiment of the finger vein recognition device of the present invention is shown.

[0074] The difference between the finger vein recognition device in this embodiment and the finger vein recognition device in the second embodiment above is that, considering the existing image acquisition device, for example, an image sensor, it is often possible to realize whether there is an object entering its image acquisition For this reason, the finger vein identification device in this embodiment does not include a detection device, but uses the second image acquisition device 403 to detect the information that the sampled ...

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PUM

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Abstract

The invention relates to a finger vein identification method, an apparatus and a vein authentication terminal device. The method includes controlling an image acquisition apparatus to rotate about a sample finger once the sampled finger entered in an identification area is detected, driving the image acquisition apparatus to sample the vein of the sampled finger to obtain a plurality of sampling images, comparing and matching the sampling images with preset sample images, and determining passing of vein identification if at least one sampling image matches with the sample images. The vein false rejection rate can be maintained even when the finger plane is not perpendicular to the image acquisition apparatus. The invention is easy to realize.

Description

technical field [0001] The invention relates to the technical field of authentication, in particular to a finger vein identification method, device and vein authentication terminal equipment. Background technique [0002] Traditional vein authentication terminal equipment, including infrared light-emitting devices and cameras (or imaging sensors), during authentication, such as figure 1 As shown, a camera vertical to the finger plane is required to ensure the accuracy of the sampling effect. However, the vein authentication terminal device is non-contact sampling, that is, the sampled finger is in a suspended state during the sampling process, so it is difficult to ensure that the finger plane is perpendicular to the camera when the camera captures the finger image, so that the sampling image and the sample There is a large difference in the image, resulting in an increase in the rejection rate of sampling and a reduction in the recognition ability of the device. [0003] ...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1312G06V40/1365G06V40/14
Inventor 曾超张永生潘煜熙欧咏锦石杰刘恒林李基源
Owner HITACHI BUILDING TECH GUANGZHOU CO LTD
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