WO2018032922A1 - 一种手指静脉采集方法及装置 - Google Patents

一种手指静脉采集方法及装置 Download PDF

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WO2018032922A1
WO2018032922A1 PCT/CN2017/093105 CN2017093105W WO2018032922A1 WO 2018032922 A1 WO2018032922 A1 WO 2018032922A1 CN 2017093105 W CN2017093105 W CN 2017093105W WO 2018032922 A1 WO2018032922 A1 WO 2018032922A1
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Prior art keywords
image
finger vein
light source
unit
finger
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French (fr)
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金晓峰
梁添才
陈侃
龚文川
徐俊
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GRG Banking Equipment Co Ltd
GRG Banking IT Co Ltd
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GRG Banking Equipment Co Ltd
GRG Banking IT Co Ltd
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    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/14Vascular patterns
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands

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  • the present application relates to the field of biometrics, and more particularly to a finger vein collection method and apparatus.
  • biometrics With the continuous development of technology, traditional methods of user identification and verification through user names and passwords are insufficient to meet the growing demand for online payment.
  • Biometrics has developed rapidly with its uniqueness. Specifically, the biometric identification technology utilizes biometric or behavioral characteristics of the human body for personal identity authentication, wherein the biometric features may include fingerprints, palms, irises, faces, etc., and the behavioral features may include actions, sounds, signatures, and the like.
  • the vein recognition technology is one of the biometric identification technologies, which achieves the purpose of identification and authentication by performing living body recognition on the vein image of the finger or the palm, and has the characteristics of high anti-counterfeiting, living body detection, high precision, and easy operation.
  • the inventors have found that in the existing finger vein collection and recognition device, although there are structural guiding and restricting devices for finger positioning, the user may inevitably have a finger during the collection process due to different finger operating habits during use. Rotate left and right. In this case, the image of the finger vein collected is deviated from the finger vein template in which the finger is laid flat, and the result that the image verification fails is likely to occur.
  • the present application provides a finger vein collection method, which can solve the problem of finger rotation existing in the finger vein collection process by collecting finger vein images of different angles, performing feature matching and fusion splicing.
  • a finger vein collecting method is applied to a finger vein collecting device, the device comprising: a multi-angle light source, a finger sensing unit, an imaging lens, an image collecting unit, a control unit, an image fusion unit and an image storage unit, the multi-angle light source
  • the method includes at least a first light source disposed at the first preset position and a second light source disposed at the second preset position, where the collecting method comprises:
  • the finger sensing unit receives the first triggering instruction, and sends the generated sensing signal to the control unit;
  • the control unit controls the first light source and the second light source of the multi-angle light source to be turned on or off respectively, and acquires at least two finger veins in different open states of the light source through the image collecting unit. image;
  • the image fusion unit splicing and merging the finger vein images collected by the image acquisition unit;
  • the image storage unit stores the merged finger vein mosaic image.
  • controlling the first light source and the second light source of the multi-angle light source to be turned on or off respectively, and acquiring at least two finger vein images in the open or closed state of different light sources by the image collecting unit comprises:
  • the control unit controls the first light source to emit light, the second light source does not emit light, and the image capturing unit acquires the first finger vein image;
  • the control unit controls the second light source to emit light, the first light source does not emit light, and the image acquisition unit acquires the second finger vein image.
  • the multi-angle light source further includes a third light source disposed at the third preset position, and the corresponding method further includes:
  • the control unit controls the third light source to emit light, the first light source and the second light source do not emit light, and the image capturing unit acquires the third finger vein image.
  • the first finger vein image, the second finger vein image, and the third finger vein are respectively horizontally rotated, horizontally displaced, and renormalized to obtain images NorF1, NorF2, and NorF3;
  • a finger vein collecting device comprises: a multi-angle light source, a finger sensing unit, an imaging lens, an image collecting unit, a control unit, an image fusion unit and an image storage unit,
  • the multi-angle light source is connected to the control unit, and includes at least a first light source disposed at the first preset position and a second light source disposed at the second preset position;
  • the finger sensing unit is connected to the control unit, and configured to send the sensing signal generated according to the first triggering instruction to the control unit;
  • the imaging lens cooperates with the image capturing unit to collect a finger vein image
  • An image acquisition unit is connected to the controller and the image fusion unit, and configured to convert the optical signal into an electrical signal and output the image to the image fusion unit;
  • the image fusion unit is configured to splicing and merging the finger vein images collected by the image acquisition unit;
  • the image storage unit is connected to the image fusion unit and the controller for storing the merged finger vein mosaic image.
  • the multi-angle light source further includes a third light source disposed at the third preset position, respectively controlling opening or closing of the first light source, the second light source, and the third light source, and acquiring the first finger vein image, A two-finger vein image and a third finger vein image.
  • a third light source disposed at the third preset position, respectively controlling opening or closing of the first light source, the second light source, and the third light source, and acquiring the first finger vein image, A two-finger vein image and a third finger vein image.
  • the image fusion unit comprises:
  • a preprocessing module configured to perform horizontal rotation, horizontal displacement correction, and size normalization processing on the first finger vein image, the second finger vein image, and the third finger vein image, respectively, to obtain images NorF1, NorF2, and NorF3;
  • the present application provides a finger vein collection method, which receives finger pressure by a finger pressure sensing unit, and sends the generated pressure touch command to the control unit, and the control unit receives the pressure touch.
  • the first light source and the second light source in the multi-angle light source are controlled to be turned on or off, and at least two finger vein images in different states of the light source being turned on or off are obtained by the image collecting unit, and the image fusion unit collects the image collecting unit.
  • the finger vein image is stitched and combined, and the image storage unit stores the finger vein image and the synthesized finger vein image.
  • FIG. 1 is a flowchart of a method for collecting a finger vein according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a finger vein collecting device disclosed in the embodiment
  • FIG. 3 is a schematic structural diagram of still another finger vein collecting device disclosed in the embodiment.
  • FIG. 4 is a schematic structural diagram of still another finger vein collecting device disclosed in the embodiment.
  • FIG. 1 is a flowchart of a method for collecting a finger vein according to an embodiment of the present invention. The method includes the following steps:
  • the finger sensing unit receives the first triggering instruction, and sends the generated sensing signal to the control unit.
  • the control unit controls the first light source and the second light source of the multi-angle light source to be turned on or off respectively, and acquires at least two of different light sources in an open state by the image collecting unit. Finger vein image.
  • the image fusion unit performs splicing and merging the finger vein images collected by the image acquisition unit.
  • the image storage unit stores the merged finger vein mosaic image.
  • a vein collecting device as shown in FIG. 2, comprises: a multi-angle light source 1, a finger sensing unit 2, an imaging lens, an image capturing unit 4, a control unit 5, an image fusion unit 6, and an image storage unit 7.
  • the multi-angle light source includes at least a first light source disposed at the first preset position and a second light source disposed at the second preset position.
  • the finger sensing unit may be a pressure touch type, an optical sensor, or the like.
  • the acquisition sensor can be a CMOS image sensor or a CCD image sensor.
  • a finger vein image of a plurality of angles is collected, and the image is synthesized to obtain a spliced larger image, thereby solving the problem of finger rotation when collecting the finger vein image in the prior art. problem.
  • the first light source may be disposed on the upper left side of the finger placement position, and the second light source may be placed on the upper right side of the finger placement position.
  • the position where the light source is set can be set according to actual needs, and is not limited in this embodiment.
  • the control unit controls the first light source to emit light, the second light source does not emit light, and the image acquisition unit acquires the first finger vein image f1.
  • the control unit controls the second light source to emit light, the first light source does not emit light, and the image acquisition unit acquires the second finger vein image f2.
  • RegF1 and RegF2 are added to increase the amount of information, and the image smoothing transition is performed by the weighted average method to generate a finger vein mosaic image MosaicF.
  • the embodiment of the solution collects finger vein images of different angles and generates a large mosaic image, the problem of finger rotation can be solved, and the user experience is improved.
  • the multi-angle light source further includes a third light source disposed at the third preset position
  • the corresponding finger vein collection method further includes:
  • the control unit controls the third light source to emit light, the first light source and the second light source do not emit light, and the image acquisition unit acquires the third finger vein image f3.
  • the multi-angle light source is connected to the control unit, and includes a first light source, a second light source, and a third light source, and the first light source is disposed on a left side (preferably an upper left side) of the finger placement position.
  • the second light source is disposed above the finger placement position, and the third light source is disposed at a right side (preferably the upper right side) of the finger placement position.
  • the finger sensing unit is connected to the control unit, and configured to send the sensing signal generated according to the first trigger signal to the control unit;
  • the imaging lens is connected to the image capturing unit for acquiring a finger vein image; and image capturing
  • the unit is connected to the controller and the image fusion unit for converting the optical signal into an electrical signal and outputting the signal to the controller;
  • the image fusion unit is configured to splicing and merging the finger vein image collected by the image acquisition unit;
  • the image storage unit is connected to the image fusion unit and the controller for storing the merged finger vein mosaic image.
  • the finger vein collection method provided in this embodiment is specifically:
  • Horizontal rotation and horizontal displacement correction and size normalization processing are performed on the first finger vein image f1, the second finger vein image f2, and the third finger vein image f3, respectively, to obtain images NorF1, NorF2, and NorF3.
  • the images NorF1 and NorF3 are taken as the target image, and the image NorF2 is taken as the reference image.
  • the multi-angle light source in the present scheme may further include three or more light sources, and the working principle thereof is similar to the above embodiment.
  • the present embodiment uses a three-source light source as an example to describe a finger vein collection device provided by the embodiment.
  • the collection device includes: a multi-angle light source, a finger sensing unit, an imaging lens, an image acquisition unit, and control. Unit, image fusion unit and image storage unit.
  • the multi-angle light source is connected to the control unit, the first light source is disposed on a left side of the finger pressure sensing unit, and the second light source is disposed on an upper side of the finger pressure sensing unit, the third A light source is disposed on a right side of the finger pressing sensing unit.
  • the finger sensing unit is connected to the control unit, and configured to send a pressure touch instruction generated according to the first trigger instruction to the control unit.
  • An imaging lens is coupled to the image acquisition unit for capturing a finger vein image.
  • An image acquisition unit is coupled to the controller and the image fusion unit for converting an optical signal into an electrical signal for output to the controller.
  • the image fusion unit is configured to splicing and merging the finger vein images collected by the image acquisition unit.
  • the image storage unit is connected to the image fusion unit and the controller for storing the merged finger vein mosaic image.
  • the image fusion unit includes:
  • the correction module 401 is configured to perform horizontal rotation and horizontal displacement correction and size normalization processing on the first finger vein image, the second finger vein image, and the third finger vein, respectively, to obtain images NorF1, NorF2, and NorF3;
  • the present application provides a finger vein collection method, which receives a first trigger instruction by a finger sensing unit, and sends the generated sensing signal to a control unit, and the control unit controls the multi-angle light source after receiving the sensing signal.
  • the first light source and the second light source are turned on or off, and at least two finger vein images in different states of the light source being turned on or off are obtained by the image collecting unit, and the image fusion unit splicing and merging the finger vein images collected by the image collecting unit, the image
  • the storage unit stores the merged finger vein mosaic image.
  • the device embodiment since it basically corresponds to the method embodiment, it can be referred to the partial description of the method embodiment.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Can choose according to actual needs Some or all of the modules are used to achieve the objectives of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

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Abstract

本申请提供了一种手指静脉采集方法及装置,所述采集方法通过手指感应单元接收第一触发指令,并将产生的感应信号发送往控制单元,控制单元在接收到感应信号后,控制多角度光源中的第一光源以及第二光源开启或关闭,并通过图像采集单元获取不同光源开启或关闭状态下的至少两个手指静脉图像,图像融合单元将图像采集单元采集到的手指静脉图像进行拼接融合,图像存储单元存储融合后的手指静脉拼接图像。可见,本发明提供的指静脉采集方法和装置,通过采集不同角度的手指静脉图像,并进行特征匹配和融合拼接,有效的解决在指静脉采集过程中存在的手指旋转的问题。

Description

一种手指静脉采集方法及装置
本申请要求于2016年08月17日提交中国专利局、申请号为201610681664.8、发明名称为“一种手指静脉采集方法及装置”的国内申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及生物特征识别技术领域,更具体地说,涉及一种手指静脉采集方法及装置。
背景技术
随着科技的不断发展,传统的通过用户名、密码等方式进行用户身份识别和验证的方式不足以满足日益发展的网络支付的需求。生物特征识别凭借其唯一性,得到了快速的发展。具体的,生物特征识别技术是利用人体生物特征或者行为特征进行个人身份认证,其中,生物特征可以包括指纹、掌型、虹膜、脸型等,行为特征可以包括动作、声音、签名等。
静脉识别技术是生物识别技术中的一种,其通过对手指或手掌中静脉图像进行活体识别来达到识别认证的目的,具有高度防伪、活体检测、精准度高、便于操作等特性。
但发明人发现,现有的指静脉采集和识别装置中,虽然存在手指定位的结构上的引导和限制装置,但用户在使用过程中由于不同的手指操作习惯,不可避免在采集过程中手指存在左右旋转的情况。此种情况下采集的指静脉图像偏离了手指平放的手指静脉模板,容易发生图像验证不通过的结果。
发明内容
有鉴于此,本申请提供了一种手指静脉采集方法,通过采集不同角度的手指静脉图像,并进行特征匹配和融合拼接,有效的解决在指静脉采集过程中存在的手指旋转的问题。
为了实现上述目的,现提出的方案如下:
一种手指静脉采集方法,应用于手指静脉采集装置,所述装置包括:多角度光源,手指感应单元,成像镜头,图像采集单元,控制单元,图像融合单元以及图像存储单元,所述多角度光源至少包括设置在第一预设位置的第一光源以及设置在第二预设位置的第二光源,所述采集方法包括:
所述手指感应单元接收第一触发指令,并将产生的感应信号发送往所述控制单元;
控制单元在接收到所述感应信号后,控制所述多角度光源中的第一光源以及第二光源分别开启或关闭,并通过所述图像采集单元获取不同光源开启状态下的至少两个手指静脉图像;
所述图像融合单元将图像采集单元采集到的手指静脉图像进行拼接融合;
所述图像存储单元存储所述融合后的手指静脉拼接图像。
优选的,所述控制所述多角度光源中的第一光源以及第二光源分别开启或关闭,并通过所述图像采集单元获取不同光源开启或关闭状态下的至少两个手指静脉图像包括:
所述控制单元控制第一光源发光,第二光源不发光,所述图像采集单元获取第一手指静脉图像;
所述控制单元控制第二光源发光,第一光源不发光,所述图像采集单元获取第二手指静脉图像。
优选的,所述多角度光源还包括设置在第三预设位置的第三光源,相应的所述方法还包括:
所述控制单元控制第三光源发光,第一光源以及第二光源不发光,所述图像采集单元获取第三手指静脉图像。
优选的,分别对第一手指静脉图像、第二手指静脉图像和第三手指静脉进行水平旋转、水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3;
将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像,对不同角度采集的指静脉图像进行图像配准,得到图像RegFi(i=1,3)和RegF2;
将图像RegFi(i=1,3)和RegF2相加,并通过加权平均的方法进行图像平滑过渡,融合生成一手指静脉拼接图像MosaicF。
一种手指静脉采集装置,包括:多角度光源,手指感应单元,成像镜头,图像采集单元,控制单元,图像融合单元以及图像存储单元,
所述多角度光源与所述控制单元相连,至少包括设置在第一预设位置的第一光源以及设置在第二预设位置的第二光源;
所述手指感应单元与所述控制单元相连,用于将根据第一触发指令产生的感应信号发送往所述控制单元;
成像镜头与所述图像采集单元配合,用于采集手指静脉图像;
图像采集单元与所述控制器以及所述图像融合单元相连,用于将光信号转换为电信号,输出至所述图像融合单元;
图像融合单元用于将图像采集单元采集到的手指静脉图像进行拼接融合;
图像存储单元与所述图像融合单元以及所述控制器相连,用于存储所述融合后的手指静脉拼接图像。
优选的,所述多角度光源还包括设置在第三预设位置的第三光源,分别控制所述第一光源、第二光源和第三光源的开启或关闭,采集第一手指静脉图像、第二手指静脉图像和第三手指静脉图像。
优选的,所述图像融合单元包括:
预处理模块,用于分别对第一手指静脉图像、第二手指静脉图像和第三手指静脉图像进行水平旋转、水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3;
配准模块,用于将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像,对不同角度采集的指静脉图像进行图像配准,得到图像RegFi(i=1,3)和RegF2;
融合模块,用于将图像RegFi(i=1,3)和RegF2相加,并通过加权平均的方法进行图像平滑过渡,融合生成一手指静脉拼接图像MosaicF。
从上述的技术方案可以看出,本申请提供了一种手指静脉采集方法,通过手指压触感应单元接收手指压触,并将产生的压触指令发送往控制单元,控制单元在接收到压触指令后,控制多角度光源中的第一光源以及第二光源开启或关闭,并通过图像采集单元获取不同光源开启或关闭状态下的至少两个手指静脉图像,图像融合单元将图像采集单元采集到的手指静脉图像进行拼接合成,图像存储单元存储手指静脉图像以及合成后的手指静脉图像。可见,本发明提供的指静脉采集方法,通过采集不同角度的手指静脉图像,并进行特征匹配和融合拼接,有效的解决了在指静脉采集过程中存在的手指旋转的问题。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本实施例公开的一种手指静脉采集方法的流程图;
图2为本实施例公开的一种手指静脉采集装置的结构示意图;
图3为本实施例公开的又一种手指静脉采集装置的结构示意图;
图4为本实施例公开的又一种手指静脉采集装置的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
实施例一
请参阅图1,为本实施例提供的一种手指静脉采集方法的流程图,该采集方法包括步骤:
S1、所述手指感应单元接收第一触发指令,并将产生的感应信号发送往所述控制单元。
S2、控制单元在接收到所述感应信号后,控制所述多角度光源中的第一光源以及第二光源分别开启或关闭,并通过所述图像采集单元获取不同光源开启状态下的至少两个手指静脉图像。
S3、所述图像融合单元将图像采集单元采集到的手指静脉图像进行拼接融合。
S4、所述图像存储单元存储所述融合后的手指静脉拼接图像。
本实施例提供的手指静脉采集方法需要基于本发明实施例提供的手指 静脉采集装置,该装置如图2所示,包括:多角度光源1,手指感应单元2,成像镜头,图像采集单元4,控制单元5,图像融合单元6以及图像存储单元7。
其中,所述多角度光源至少包括设置在第一预设位置的第一光源以及设置在第二预设位置的第二光源,具体的,手指感应单元可以为压触式、光学感应等,图像采集传感器可以是CMOS图像传感器或者CCD图像传感器。
具体的,本发明实施例是通过采集多个角度的指静脉图像,并将其进行图像合成,得到一个拼接后的较大的图像,进而解决了现有技术中采集指静脉图像时手指旋转的问题。
现以多角度光源为两个光源为例,对本实施例提供的指静脉采集方法的工作原理进行说明,如下:
在本实施例中,可以将第一光源设置在手指放置位置的左上侧,第二光源放置在手指放置位置的右上侧。其光源设置的位置可根据实际需求进行设定,在本实施例中不对其进行限定。
所述控制单元控制第一光源发光,第二光源不发光,所述图像采集单元获取第一手指静脉图像f1。所述控制单元控制第二光源发光,第一光源不发光,所述图像采集单元获取第二手指静脉图像f2。
对图像f1和f2进行水平旋转和水平位移校正和大小归一化处理,得到图像NorF1、NorF2。
将NorF1作为目标图像,将NorF2作为参考图像,实现不同角度采集的指静脉图像的图像配准,得到图像RegF1和RegF2;
将RegF1和RegF2相加,从而增加信息量,并通过加权平均的方法进行图像平滑过渡,生成一手指静脉拼接图像MosaicF。
由于本方案实施例是采集不同角度的指静脉图像,并生成一个大的拼接图像,因此能解决手指旋转的问题,提高用户体验。
实施例二
在实施例一的基础上,所述多角度光源还包括设置在第三预设位置的第三光源,相应的所述指静脉采集方法还包括:
所述控制单元控制第三光源发光,第一光源以及第二光源不发光,所述图像采集单元获取第三手指静脉图像f3。
具体的,如图3所示,多角度光源与所述控制单元相连,包括第一光源、第二光源以及第三光源,所述第一光源设置在手指放置位置的左侧(优选左上侧),所述第二光源设置在手指放置位置的上方,所述第三光源设置在手指放置位置的右侧(优选右上侧)。
所述手指感应单元与所述控制单元相连,用于将根据第一触发信号产生的感应信号发送往所述控制单元;成像镜头与所述图像采集单元相连,用于采集手指静脉图像;图像采集单元与所述控制器以及所述图像融合单元相连,用于将光信号转换为电信号,输出至所述控制器;图像融合单元用于将图像采集单元采集到的手指静脉图像进行拼接融合;图像存储单元与所述图像融合单元以及所述控制器相连,用于存储所述融合后的手指静脉拼接图像。
基于上述硬件,本实施例提供的指静脉采集方法具体为:
分别对第一手指静脉图像f1、第二手指静脉图像f2和第三手指静脉图像f3进行水平旋转和水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3。
将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像, 实现不同角度采集的指静脉图像的图像配准,得到图像RegFi(i=1,3)和RegF2。
将图像RegFi(i=1,3)和RegF2相加从而增加信息量,并通过加权平均的方法进行图像平滑过渡,生成一手指静脉拼接图像MosaicF。
需要说明的是,本方案中的多角度光源还可以包括三个以上光源,其工作原理与上述实施例类似。
实施例三
除上述实施例外,本实施例以三个光源为例,对本实施例提供的一种手指静脉采集装置进行说明,该采集装置包括:多角度光源,手指感应单元,成像镜头,图像采集单元,控制单元,图像融合单元以及图像存储单元。
其中,所述多角度光源与所述控制单元相连,所述第一光源设置在手指压触感应单元的左侧,所述第二光源设置在手指压触感应单元的上侧,所述第三光源设置在所述手指压触感应单元的右侧。
所述手指感应单元与所述控制单元相连,用于将根据第一触发指令产生的压触指令发送往所述控制单元。
成像镜头与所述图像采集单元相连,用于拍摄手指静脉图像。
图像采集单元与所述控制器以及所述图像融合单元相连,用于将光信号转换为电信号,输出至所述控制器。
图像融合单元用于将图像采集单元采集到的手指静脉图像进行拼接融合。
图像存储单元与所述图像融合单元以及所述控制器相连,用于存储融合后的手指静脉拼接图像。
具体的,请参阅图4,所述图像融合单元包括:
校正模块401,用于分别对第一手指静脉图像、第二手指静脉图像和第三手指静脉进行水平旋转和水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3;
配准模块402,用于将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像,实现不同角度采集的指静脉图像的图像配准,得到图像RegFi(i=1,3)和RegF2;
处理模块403,用于将图像RegFi(i=1,3)和RegF2相加从而增加信息量,并通过加权平均的方法进行图像平滑过渡,生成一手指静脉拼接图像MosaicF。
综上,本申请提供了一种手指静脉采集方法,通过手指感应单元接收第一触发指令,并将产生的感应信号发送往控制单元,控制单元在接收到感应信号后,控制多角度光源中的第一光源以及第二光源开启或关闭,并通过图像采集单元获取不同光源开启或关闭状态下的至少两个手指静脉图像,图像融合单元将图像采集单元采集到的手指静脉图像进行拼接融合,图像存储单元存储融合后的手指静脉拼接图像。可见,本发明提供的指静脉采集方法,通过采集不同角度的手指静脉图像,并进行特征匹配和融合拼接,有效的解决在指静脉采集过程中存在的手指旋转的问题。
对于装置实施例而言,由于其基本相应于方法实施例,所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其 中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (9)

  1. 一种手指静脉采集方法,其特征在于,应用于手指静脉采集装置,所述装置包括:多角度光源,手指感应单元,成像镜头,图像采集单元,控制单元,图像融合单元以及图像存储单元,所述多角度光源至少包括设置在第一预设位置的第一光源以及设置在第二预设位置的第二光源,所述采集方法包括:
    所述手指感应单元接收第一触发指令,并将产生的感应信号发送往所述控制单元;
    控制单元在接收到所述感应信号后,控制所述多角度光源中的第一光源以及第二光源分别开启或关闭,并通过所述图像采集单元获取不同光源开启状态下的至少两个手指静脉图像;
    所述图像融合单元将图像采集单元采集到的手指静脉图像进行拼接融合;
    所述图像存储单元存储所述融合后的手指静脉拼接图像。
  2. 根据权利要求1所示的手指静脉采集方法,其特征在于,所述控制所述多角度光源中的第一光源以及第二光源分别开启或关闭,并通过所述图像采集单元获取不同光源开启或关闭状态下的至少两个手指静脉图像包括:
    所述控制单元控制第一光源发光,第二光源不发光,所述图像采集单元获取第一手指静脉图像;
    所述控制单元控制第二光源发光,第一光源不发光,所述图像采集单元获取第二手指静脉图像。
  3. 根据权利要求2所示的手指静脉采集方法,其特征在于,所述多角度光源还包括设置在第三预设位置的第三光源,相应的所述方法还包括:
    所述控制单元控制第三光源发光,第一光源以及第二光源不发光,所述图像采集单元获取第三手指静脉图像。
  4. 根据权利要求3所示的手指静脉采集方法,其特征在于,
    分别对第一手指静脉图像、第二手指静脉图像和第三手指静脉进行水平旋转、水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3;
    将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像,对不同角度采集的指静脉图像进行图像配准,得到图像RegFi(i=1,3)和RegF2;
    将图像RegFi(i=1,3)和RegF2相加,并通过加权平均的方法进行图像平滑过渡,融合生成一手指静脉拼接图像MosaicF。
  5. 一种手指静脉采集装置,其特征在于,包括:多角度光源,手指感应单元,成像镜头,图像采集单元,控制单元,图像融合单元以及图像存储单元,
    所述多角度光源与所述控制单元相连,至少包括设置在第一预设位置的第一光源以及设置在第二预设位置的第二光源;
    所述手指感应单元与所述控制单元相连,用于将根据第一触发指令产生的感应信号发送往所述控制单元;
    成像镜头与所述图像采集单元配合,用于采集手指静脉图像;
    图像采集单元与所述控制器以及所述图像融合单元相连,用于将光信号转换为电信号,输出至所述图像融合单元;
    图像融合单元用于将图像采集单元采集到的手指静脉图像进行拼接融合;
    图像存储单元与所述图像融合单元以及所述控制器相连,用于存储所述融合后的手指静脉拼接图像。
  6. 根据权利要求5所示的手指静脉采集装置,其特征在于,所述多角度光源还包括设置在第三预设位置的第三光源,分别控制所述第一光源、第二光源和第三光源的开启或关闭,采集第一手指静脉图像、第二手指静脉图像和第三手指静脉图像。
  7. 根据权利要求6所示的手指静脉采集装置,其特征在于,所述图像融合单元包括:
    预处理模块,用于分别对第一手指静脉图像、第二手指静脉图像和第三手指静脉图像进行水平旋转、水平位移校正和大小归一化处理,得到图像NorF1、NorF2和NorF3;
    配准模块,用于将图像NorF1和NorF3作为目标图像,将图像NorF2作为参考图像,对不同角度采集的指静脉图像进行图像配准,得到图像RegFi(i=1,3)和RegF2;
    融合模块,用于将图像RegFi(i=1,3)和RegF2相加,并通过加权平均的方法进行图像平滑过渡,融合生成一手指静脉拼接图像MosaicF。
  8. 根据权利要求5至7任一权利要求所示的手指静脉采集装置,其特征在于,所述图像采集单元为CMOS或CCD图像采集传感器。
  9. 根据权利要求5至7任一权利要求所示的手指静脉采集装置,其特征在于,所述手指感应单元为压触式或光学感应单元。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113989861A (zh) * 2021-09-30 2022-01-28 清华大学深圳国际研究生院 一种多视角手指静脉图像采集设备
CN114038024A (zh) * 2021-10-28 2022-02-11 广东好太太智能家居有限公司 指静脉录入方法、系统、装置及存储介质

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109389070A (zh) * 2018-09-29 2019-02-26 珠海格力电器股份有限公司 一种指静脉识别器、生成指静脉模型的方法和设备
CN109740586B (zh) * 2018-12-19 2022-08-16 南京华科和鼎信息科技有限公司 一种防眩光证件自动阅读系统及方法
CN111259871A (zh) * 2020-03-26 2020-06-09 广州微盾科技股份有限公司 完全非接触式手部生物信息的采集设备、方法及存储介质
CN111652088B (zh) * 2020-05-15 2023-06-20 圣点世纪科技股份有限公司 一种基于视频选优机制的指静脉注册方法及注册装置
CN112784758A (zh) * 2021-01-25 2021-05-11 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) 一种具有指静脉识别装置的微型设备
CN120032403A (zh) * 2025-04-23 2025-05-23 宁波芯然科技有限公司 一种多特征手指融合的生物识别方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097599A (zh) * 2006-06-26 2008-01-02 日立欧姆龙金融系统有限公司 生物体认证装置
EP2048628A2 (en) * 2007-10-09 2009-04-15 Hitachi Ltd. Personal authentication apparatus and method
CN101539995A (zh) * 2009-04-24 2009-09-23 清华大学深圳研究生院 基于手指静脉纹与手指背纹的成像设备及多模态身份认证方法
CN102663393A (zh) * 2012-03-02 2012-09-12 哈尔滨工程大学 基于旋转校正的手指静脉图像感兴趣区域提取方法
CN103370727A (zh) * 2011-04-22 2013-10-23 株式会社日立制作所 血管图像摄影装置及生物体认证装置
CN105303128A (zh) * 2014-07-31 2016-02-03 中国电信股份有限公司 一种防止未经授权使用移动终端的方法和移动终端

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5982311B2 (ja) * 2013-03-22 2016-08-31 株式会社 日立産業制御ソリューションズ 血管画像撮影装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101097599A (zh) * 2006-06-26 2008-01-02 日立欧姆龙金融系统有限公司 生物体认证装置
EP2048628A2 (en) * 2007-10-09 2009-04-15 Hitachi Ltd. Personal authentication apparatus and method
CN101539995A (zh) * 2009-04-24 2009-09-23 清华大学深圳研究生院 基于手指静脉纹与手指背纹的成像设备及多模态身份认证方法
CN103370727A (zh) * 2011-04-22 2013-10-23 株式会社日立制作所 血管图像摄影装置及生物体认证装置
CN102663393A (zh) * 2012-03-02 2012-09-12 哈尔滨工程大学 基于旋转校正的手指静脉图像感兴趣区域提取方法
CN105303128A (zh) * 2014-07-31 2016-02-03 中国电信股份有限公司 一种防止未经授权使用移动终端的方法和移动终端

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113989861A (zh) * 2021-09-30 2022-01-28 清华大学深圳国际研究生院 一种多视角手指静脉图像采集设备
CN114038024A (zh) * 2021-10-28 2022-02-11 广东好太太智能家居有限公司 指静脉录入方法、系统、装置及存储介质

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