CN103761465A - Method and device for identity authentication - Google Patents

Method and device for identity authentication Download PDF

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CN103761465A
CN103761465A CN 201410051770 CN201410051770A CN103761465A CN 103761465 A CN103761465 A CN 103761465A CN 201410051770 CN201410051770 CN 201410051770 CN 201410051770 A CN201410051770 A CN 201410051770A CN 103761465 A CN103761465 A CN 103761465A
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biometric
image
authenticated
matching
stored
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CN 201410051770
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Chinese (zh)
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雷量
卢茂强
李辉
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上海云亨科技有限公司
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints

Abstract

The invention discloses a method and device for identity authentication. The method includes the steps that a biological characteristic image of a person to be authenticated is obtained through a camera device, the obtained biological characteristic image of the person to be authenticated is matched with a pre-stored biological characteristic image, bio-assay is carried out on the person to be authenticated on the basis of a blood volume pulse signal of the person to be authenticated, and the person to be authenticated passes the identity authentication when the obtained biological characteristic image of the person to be authenticated is successfully matched with the pre-stored biological characteristic image and the person to be authenticated passes the bio-assay on the basis of the blood volume pulse signal. According to the method and device, biological identification is combined with the bio-assay carried out on the person to be authenticated through the blood volume pulse signal; when the camera device is used for obtaining the biological characteristic image of the person to be authenticated for biological identification, the bio-assay is carried out through the blood volume pulse signal, and safety and reliability of biological identification are improved.

Description

一种身份验证的方法及装置 An authentication method and apparatus

技术领域 FIELD

[0001] 本发明涉及生物识别技术,尤其涉及一种身份验证的方法及装置。 [0001] The present invention relates to biometric technologies, and particularly to a method and apparatus for authentication.

背景技术 Background technique

[0002] 由于生物特征的稳定性、唯一性和方便性等特点,以生物识别技术作为手段来进行身份验证逐渐取代诸如钥匙、密码等传统的身份识别方式。 [0002] Because of the stability, and convenience unique biometric characteristics such as biometrics to authenticate gradually replacing traditional identification means such as a key, password, etc. as a means. 生物识别技术是指利用人体的一些生物特征,例如人脸、虹膜、指纹、掌纹、手形等,来进行身份识别的技术,其主要包括:采集图像,从采集的图像中提取生物特征信息,随后将所提取的特征信息与数据库中所有或部分预先注册的特征信息进行匹配,根据匹配结果来对该被验证者进行身份验证。 Biometrics refers to the use of some biological characteristics of the human body, such as a human face, iris, fingerprint, palm print, hand, etc., to perform identification technology, which include: image acquisition, extracting biometric information from the image acquisition, subsequently the extracted feature information in the database all or part of a pre-registered feature information matches, the matching result according to the verifier for authentication.

[0003] 现有技术中已经出现了非接触式的生物识别技术,其利用摄像装置来获取图像,并从该图像中获取待匹配的生物特征信息。 [0003] In the prior art there have been a non-contact biometrics, which acquires an image by the imaging means, and acquires the biometric information to be matched from the image. 然而对于诸如指纹,掌纹,手形等生物特征,采用硅、橡胶等材料可以进行仿冒,尤其是树胶,是通过对胶的水溶液进行凝胶化而得到的,其成分与人类表皮的成分极其相似,目前普遍用于非接触式生物识别技术的光学传感器还不能分辨采用树胶仿冒的一些生物特征,例如指纹、掌纹等,所以目前采用摄像装置获取图像来进行生物识别的方式,还不容易识别这些仿冒的生物特征,其安全性和可靠性存在问题。 However, for biometrics, such as fingerprints, palm prints, hand shape, etc., using materials such as silicon, rubber or the like may be counterfeit, especially gum, gum aqueous solution by gelation obtained, the ingredients of the composition is very similar to human skin , now commonly used in optical sensors contactless biometric technology can not use some distinguish fake biometric gums, such as fingerprints, palm prints, etc., so the manner currently used to acquire the image pickup apparatus of the biometric, not easily identified these counterfeit biometric, there is a problem that safety and reliability.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是提供一种身份验证的方法及装置,以解决现有技术采用摄像装置获取图像来进行生物识别存在的安全性和可靠性低的问题。 [0004] The present invention solves the technical problem is to provide an authentication method and an apparatus to solve the prior art image pickup apparatus using an image acquired by the presence of low biometric security and reliability issues.

[0005] 根据本发明的一个方面,提供一种身份验证的方法,包括: [0005] In accordance with one aspect of the invention, there is provided an authentication method, comprising:

[0006] 通过摄像装置来获取待验证者的生物特征图像; [0006] to acquire the biometric image to be authenticated by the imaging device's;

[0007] 将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配; [0007] The biometric verifier image to be acquired is matched with the prestored biometric image;

[0008] 其中,所述方法还包括: [0008] wherein said method further comprises:

[0009] 基于该待验证者的血容量脉冲信号,来对所述待验证者进行活体检测; [0009] Based on blood volume pulse signal person to be authenticated, is performed by detecting the living body to be verified;

[0010] 当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 [0010] When the biometric image with pre-stored biometric image to be authenticated acquired by the matching succeeds, and when the person to be authenticated by the detection of living body volume based on a pulse signal, which is determined to be authenticated by the authentication.

[0011] 根据本发明的另一个方面,还提供了一种用于身份验证的装置,包括: [0011] According to another aspect of the present invention, there is provided an apparatus for authentication, comprising:

[0012] 图像获取装置,用于通过摄像装置来获取待验证者的生物特征图像; [0012] The image acquiring means for acquiring a biometric image to be authenticated by the imaging device's;

[0013] 匹配装置,用于将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配; [0013] matching means for biometric verification image to be acquired by the biometric matching prestored image;

[0014] 所述用于身份验证的装置还包括: [0014] for the authentication device further comprises:

[0015] 活体检测装置,用于基于该待验证者的血容量脉冲信号,来对所述待验证者进行活体检测; [0015] The living body detecting means for by volume based on the pulse signal to be authenticated, is performed by detecting the living body to be verified;

[0016] 身份验证确定通过装置,用于当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 [0016] Authentication is determined by means for pre-stored biometric image to be authenticated person when the acquired biometric image matching is successful, and when the person to be authenticated by the living body based on the detection volume pulse signal, the to-be determined verifier authenticated.

[0017] 本发明将生物识别与通过血容量脉冲信号对待验证者进行活体检测结合起来,在采用摄像装置来获取待验证者的生物特征图像进行生物识别时,通过血容量脉冲信号来进行活体检测,提高了生物识别的安全性和可靠性。 When the [0017] present invention biometrics with Vivo Detection treated verifier by volume pulse signal combine in use the imaging means to acquire be biometric image of the subject biological recognition, to the living body is detected by the volume pulse signal improved biometric security and reliability.

附图说明 BRIEF DESCRIPTION

[0018] 通过阅读参照以下附图所作的对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更明显: [0018] By reading the following detailed description of the accompanying drawings of non-limiting embodiments, and other features, objects and advantages of the invention will become more apparent:

[0019] 图1为根据本发明一个实施例的一种身份验证的方法流程图; [0019] FIG. 1 is a flowchart of a method according to an embodiment of the identity verification of the present invention;

[0020] 图2为根据本发明一个实施例的一种用于身份验证的装置示意图。 [0020] FIG. 2 is a schematic view of an apparatus for authentication according to one embodiment of the present invention.

[0021 ] 附图中相同或相似的附图标记代表相同或相似的部件。 [0021] In the drawings the same or similar to the same or like reference numerals refer to the components.

具体实施方式 detailed description

[0022] 下面结合附图对本发明作进一步详细描述。 [0022] The following figures of the present invention will be further described in detail with.

[0023] 图1示出了根据本发明一个实施例的一种身份验证的方法流程图。 [0023] FIG. 1 shows a flowchart of a method of authentication according to one embodiment of the present invention.

[0024] 如图1所示,在步骤SlOl中,通过摄像装置来获取待验证者的生物特征图像。 [0024] As shown in FIG. 1, in step SlOl, the biometric image to be acquired by the imaging device verifier.

[0025] 其中,所述摄像装置可以是用于身份验证的设备自带的摄像装置,优选地,该摄像装置可以是诸如移动终端的用户设备自带的摄像装置,所述移动终端包括但不限于手机智能手机,笔记本电脑,车载电脑等;所述摄像装置也可以是单独的摄像装置,在单独的摄像装置获取待验证者的生物特征图像后,将所获取的生物特征图像传输给用于身份验证的设备。 [0025] wherein, the imaging means may be an image pickup means for carrying authentication apparatus, preferably, the imaging device may be a user equipment such as a mobile terminal carrying the imaging apparatus of the mobile terminal include, but are not smartphones limited to, laptop computers, car computers and the like; the image pickup means may be a separate imaging device, until obtaining biometric image of the subject, the transmission of the acquired biometric image to be used in a separate imaging device authentication device.

[0026] 可选地,可以通过摄像装置来获取待验证者的一幅或多幅生物特征图像。 [0026] Alternatively, the imaging device may be acquired by, or be a plurality of biometric image of the subject.

[0027] 可选地,可以在符合预定规则时,开启摄像装置的光源,随后通过该摄像装置来获取待验证者的生物特征图像。 [0027] Alternatively, when meeting a predetermined rule, the imaging device the light source is turned on, and then to acquire the biometric image to be authenticated by the imaging device's.

[0028] 其中,所述预定规则可以包括以下一项: [0028] wherein, the predetermined rule may include the following:

[0029] a)在打开该摄像装置准备获取待验证者的生物特征图像时,默认打开该摄像装置的光源; [0029] a) when opening the imaging device is ready to acquire the biometric image to be authenticated person, by default the imaging light source device;

[0030] b)通过检测环境的光线,来判断是否开启该摄像装置的光源,当环境的光线满足需开启光源的条件时,开启该摄像装置的光源。 [0030] b) detecting light passing through the environment, to determine whether the imaging apparatus is turned on the light source, the light source when the light satisfies the condition for an open environment, the light source of the imaging apparatus is turned on. 例如,设定开启光源的条件为环境光线的参数,例如亮度,小于预定的参数阈值等。 For example, the light source setting is on ambient light conditions as a parameter, such as brightness, less than a predetermined threshold value or the like parameter.

[0031] 其中,本发明中所述的生物特征是指每个个体唯一的可以测量或可自动识别和验证的生理特性,包括但不限于指纹,掌纹,人脸等。 [0031] wherein, in the present invention refers to the physiological biometric characteristic may be measured for each individual or unique identification and automatic verification, including but not limited to fingerprints, palm prints, face and the like.

[0032] 本领域技术人员可以理解,上述生物特征仅为举例,其他的生物特征如可适用于本发明,也应包含在本发明保护范围以内,并以引用方式包含于此。 [0032] Those skilled in the art will appreciate that the above is merely an example biometrics, other biometric as applicable to the present invention, should also be included within the scope of the present invention, and incorporated herein by reference.

[0033] 在步骤S102中,将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配。 [0033] In step S102, the biometric image to be authenticated biometric image acquired by the pre-stored matching.

[0034] 具体地,可以获取待验证者的生物特征图像的ROI (Region of Interest,兴趣区),随后将该ROI与预存的生物特征图像的ROI进行匹配。 ROI [0034] In particular, it can be acquired biometric image of the subject's (Region of Interest, AOI), followed by the ROI biometric image with pre-stored matching ROI.

[0035] 以下以掌纹这一生物特征为例,来说明获取待验证者的生物特征图像的R0I。 [0035] In the following the palm print biometric example to illustrate R0I biometric image acquired person to be authenticated. [0036] 首先,通过摄像装置获取待验证者的手掌图像,随后对所获取的手掌图像去除背景,确定手掌区域,优选地,可以采用中国专利CN200810114488.5中所提供的去除背景方法,来对本实施例中所获取的手掌图像去除背景。 [0036] First, an image obtained by the imaging means to be authenticated by the palm, the palm subsequently acquired image to remove background, the palm region is determined, preferably, the method of removing the background provided in Chinese Patent CN200810114488.5 may be employed to the present removing the background image of the palm obtained in Example embodiment. 然后,取所确定的手掌区域内的一个内切圆或椭圆作为R0I,该内切圆的半径或内切椭圆的半长轴小于等于该手掌区域的最大内切圆的半径,或者取该内切圆或内切椭圆的内切正方形或长方形作为R0I,其中,对每一个手上的点,都以一个起始值为半径,以该点为圆心画圆,如果这个圆周上所有的点都在手掌内部,则扩大半径直至圆周超出手掌区域,遍历所有的点之后,可以获得该手掌区域的最大内切圆的半径和圆心坐标。 Then, an ellipse or inscribed circle within the palm region taken as R0I determined, the radius of the inscribed circle or ellipse endo semimajor axis of the palm region is smaller than or equal the maximum radius of the inscribed circle, or to take the inner rounded or oval endo endo R0I as a square or a rectangle, wherein, for each point of the hand, to have a start value of the radius to the center point of the circle, if all the points on the circumference are after the interior of the palm, the radial expansion until beyond the peripheral region of the palm, through all the points, the palm area can be obtained the maximum inscribed circle radius and center coordinates.

[0037] 在获取待验证者手掌图像的ROI之后,与预存的手掌图像的ROI进行匹配。 [0037] After obtaining the ROI image to be authenticated by the palm, the ROI to match the pre-stored image of the palm. 其中,ROI的匹配可以采用灰度匹配,例如,可以采用归一化的灰度匹配方法,其逐像素地把待验证者手掌图像的ROI的灰度矩阵与预存的ROI的灰度矩阵,按照相似性度量方法进行搜索比较,优选地,可以采用幅度排序相关法,FFT (Fast Fourier Transformation,快速傅里叶变换)相关法,分层搜索的序列判断法等。 Wherein, matching of the ROI can be employed to match the gradation, for example, the gradation of the matching method may employ a normalized, pixel by pixel, which gray-level matrix of the ROI's palm to be authenticated with a prestored gray scale image matrix of the ROI, according to the method of searching for similarity measure comparison, preferably, may be employed to sort the amplitude correlation method, FFT (fast Fourier transformation, fast Fourier transform) correlation, hierarchical search sequence determination method and the like.

[0038] 具体地,还可以从上述ROI中提取生物特征信息,随后将所提取的生物特征信息与预存的生物特征信息进行匹配。 [0038] In particular, but also biometric information may be extracted from the ROI, which was then extracted biometric information with stored biometric information matches. 优选地,例如对于掌纹这一生物特征,可以采用诸如“小波能量特征”,“模糊方向元素能量特征”,“掌纹线结构特征”,“掌纹的代数特征”,“图像相位及方向特征”,“基于掌纹纹理的特征”,“基于掌纹特征点的特征”等,来进行掌纹特征信息的提取和匹配。 Preferably, for example, the palm print biometrics, may be employed, such as "wavelet energy feature", "blurring direction wherein energy element", "palm line structure feature", "algebraic features of palm", "image phase and direction feature "," palm texture feature-based "," palm-based feature point feature, "and the like, and to extract feature information matches the palmprint.

[0039] 其中,所述预存的ROI和预存的生物特征信息,可以采用如步骤S102中所描述的ROI确定方法和生物特征信息提取方法来进行确定或特征提取,随后存储所确定的ROI信息或所提取的生物特征信息。 [0039] wherein said pre-stored biometric information and prestored ROI, ROI can be employed as described in step S102 determination method and biometric information extraction method to determine or feature extraction, and then storing the determined ROI information, or the extracted biometric information.

[0040] 可选地,当摄像装置获取待验证者的一幅生物特征图像,则将所获取的待验证者的该幅生物特征图像与预存的生物特征图像进行匹配,当该幅生物特征图像与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0040] Alternatively, when the image of the biometric image with pre-stored biometric web to be verified by the imaging means to be authenticated who acquires a biometric image, then the acquired matching biometric image when the web pre-stored biometric image matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.

[0041] 可选地,当摄像装置获取待验证者的多幅生物特征图像,则将所获取的待验证者的多幅生物特征图像分别与预存的生物特征图像进行匹配,当所述多幅生物特征图像中的第一预定数量,例如一幅生物特征图像,与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0041] Alternatively, when a plurality of images to be authenticated by a biometric imaging device to be authenticated acquired by the plurality of biometric images, were then obtained biometric image matches the pre-stored, when the plurality of a first predetermined number of biometric images, for example a biometric image, the biometric image stored in the matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.

[0042] 根据使用场景的不同,预存的生物特征图像可以是一个,也可以是多个,则可以将所获取的待验证者的生物特征图像与预存的一个或多个生物特征图像进行匹配,将所获取的待验证者的生物特征图像与预存的一个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的一个生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功;或,将所获取的待验证者的生物特征图像与预存的多个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的多个生物特征图像中的第二预定数量的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0042] According to different usage scenarios, the pre-stored biometric image may be one, or may be a plurality, it may be a biometric image to be authenticated acquired by the one or more pre-stored biometric matching images, the time of the biometric image to be authenticated by the acquired match it with a biometric image is stored, and when a biometric image is a biometric image to be authenticated by the acquired pre-stored matching succeeds, determines whether the acquired be certifier or when the biometric image to be authenticated by the acquired match a plurality of biometric stored image, when the biometric image to be authenticated by the acquired pre-stored; biometric image with pre-stored biometric image matching success a second predetermined number of the plurality of biometric images biometric image matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.

[0043] 本发明实施例还可以包括步骤S103,其中步骤S103可以在步骤SlOl之前或之后执行,也可以在步骤S102之后或同步执行。 Example [0043] The present invention may further comprise the step of S103, where step S103 may be performed before or after step SlOl, or may be performed after the synchronization step S102. [0044] 在步骤S103中,基于该待验证者的血容量脉冲(Blood Volume Pulse,BVP)信号,来对所述待验证者进行活体检测。 [0044] In step S103, based on the volume of blood to be verified by a pulse (Blood Volume Pulse, BVP) signal, performed by the detection of living body to be verified.

[0045] 具体地,首先,获取所述待验证者的血容量脉冲信号,再基于所述血容量脉冲信号,来判断预定时间段内是否存在生命体征,当所述预定时间段内存在生命体征,确定所述待验证者通过活体检测。 [0045] Specifically, first, blood volume pulse signal to be acquired verifier, and then based on the blood volume pulse signal, the presence of vital signs to determine whether a predetermined time period, the presence of vital signs when the predetermined time period determining a verifier to be detected by the living body. 其中,可以采用光电容积描记法(Photolethysmography, PPG),利用光电手段在活体组织中无创检测血液容量变化,来获取待验证者的血容量脉冲信号。 Wherein photoplethysmography may be used method (Photolethysmography, PPG), photoelectric means of living tissue in a noninvasive measurement of blood volume changes, blood volume pulse signal to be acquired to the authenticator.

[0046] 其中,所述生命体征是指用来判断病人的病情轻重和危急程度的指征,在本发明中,所述生命体征包括但不限于:脉搏,呼吸,血压等。 [0046] wherein the vital signs are used to judge the severity and extent of the critical patient's indications, in the present invention, the vital signs include, but are not limited to: pulse, respiration, blood pressure. 本领域技术人员可以理解,上述生命体征仅为举例,其他的生命体征如可适用于本发明,也应包含在本发明保护范围以内,并以引用方式包含于此。 Those skilled in the art will appreciate that the above is merely an example of vital signs, other vital signs as applicable to the present invention, should also be included within the scope of the present invention, and incorporated herein by reference.

[0047] 下面以两个示例来说明基于待验证者的BVP信号来对所述待验证者进行活体检测。 [0047] In the following two examples will be described to detect the living body to be verified by the verifier based on the signal to be BVP.

[0048] 示例I [0048] Example I

[0049] 首先,获取待验证者的生物特征图像的ROI中RGB色彩通道所有像素值的平均值,来生成一个原始信号,随后采用拉普拉斯特征映射算法从所述原始信号中提取PPG信号。 The average value of all pixel values ​​in the RGB color channel of ROI [0049] First, a biological feature to be the image of the subject to generate an original signal, and then using the Laplacian mapping algorithm wherein the original signal is extracted from the PPG signal . 通常,PPG医疗仪器包括发光器和接收器,其中,发光器发射特定波长的光束,照射到人体皮肤表面时,光束通过透射或反射方式到达接收器,在此过程中,由于光束受到人体皮肤肌肉组织和血液的吸收,光强有一定的衰减。 Typically, PPG medical instrument comprises a light emitter and a receiver, wherein the light emitter emits a light beam of a specific wavelength, is irradiated to the surface of the skin, the beam reaches the receiver via the transmission or reflection mode, in this process, since the light beam by the human skin and muscle organization and absorbed into the blood, and there is a certain intensity attenuation. 由于心脏周期性搏动引起的血液容量的变化,会影响皮肤和血液对光的吸收量的变化,所以接收器接收到的光的强度呈脉动性变化,将此光强变化信号转换成电信号,可以获得携带有丰富的人体微血管循环系统信息的容量脉搏血流的变化信号,其中所述光强变化信号转换成的电信号即为PPG信号。 Since the periodic changes in the blood volume of the heart beat caused by the change will affect the absorption of light skin and blood, the intensity of light received by the receiver in the form of pulsatile changes, this change in light intensity signal into an electrical signal, can be obtained rich in change signal carrying capacity of the pulsatile flow body microcirculation system information, wherein converting the change in light intensity signal into an electric signal for the PPG signal.

[0050] 随后,从所述PPG信号中提取BVP信号。 [0050] Subsequently, the signal extracted from the BVP PPG signal. 具体地,可以去除PPG信号中的奇异点,对PPG信号进行滤波处理,来获取所述BVP信号。 In particular, the singular point may be removed in the PPG signal, a PPG signal to filtering processing, to acquire the BVP signal.

[0051 ] 获取BVP信号后,检测在预定时间段内所述BVP信号是否存在周期性的波峰,如果所述BVP信号在预定时间段内存在周期性波峰,则确定所述待验证者在预定时间段内存在生命体征,确定所述待验证者通过活体检测,否则,如果所述BVP信号在预定时间段内不存在周期性波峰,则确定所述待验证者在预定时间段内不存在生命体征,确定所述待验证者不通过活体检测。 [0051] After obtaining the BVP signal, peak detecting the presence of a periodic signal at a predetermined time period of the BVP, if the signal is present BVP periodical peak in a predetermined time period, it is determined that the person to be authenticated at a predetermined time memory segments vital signs, to determine the person to be authenticated by the detection of the living body, or, if the signal is not present BVP periodical peak in a predetermined time period, it is determined to be verified by the absence of signs of life in a predetermined period of time by determining the verification to be not detected by the living body.

[0052]示例 2 [0052] Example 2

[0053] 首先,分别获取待验证者的生物特征图像的ROI中每个RGB通道图片的所有像素值的平均值,来生成分别对应RGB色彩通道的三个原始信号,比较所述三个原始信号的幅度,从中选择幅度最大的一个原始信号,从所述原始信号中提取PPG信号。 [0053] First, each acquired biometric image to be authenticated in the ROI's average of the pixel values ​​for each channel of the RGB image, to generate an original signal corresponding three RGB color channels, comparing the original three signals amplitude, select a maximum amplitude of the original signal, extracts a PPG signal from the original signal. 随后,对所提取的PPG信号进行FFT (Fast Fourier Transformation,快速傅里叶变换)来获得能量谱,从FFT变换后获得的能量谱中选取预定频率范围内的部分谱段作为BVP信号,优选地,考虑到人的脉搏范围一般在45bpm (Beat Per Minute)至240bpm之间,可以选择0.75Hz至4Hz之间的能量谱。 Subsequently, the extracted PPG signal FFT (Fast Fourier Transformation, fast Fourier transform) to obtain the energy spectrum, the energy spectrum obtained from the FFT section selected spectral bands within a predetermined frequency range as signal BVP, preferably , taking into account the pulse of the range generally between 45bpm (Beat Per Minute) to 240 bpm, the energy may be selected between 0.75Hz to 4Hz spectrum.

[0054] 获取BVP信号后,检测在预定时间段内所述BVP信号是否存在周期性的波峰,如果所述BVP信号在预定时间段内存在周期性波峰,则确定所述待验证者在预定时间段内存在生命体征,确定所述待验证者通过活体检测,否则,如果所述BVP信号在预定时间段内不存在周期性波峰,则确定所述待验证者在预定时间段内不存在生命体征,确定所述待验证者不通过活体检测。 [0054] After obtaining the BVP signal, peak detecting the presence of a periodic signal at a predetermined time period of the BVP, if the signal is present BVP periodical peak in a predetermined time period, it is determined that the person to be authenticated at a predetermined time memory segments vital signs, to determine the person to be authenticated by the detection of the living body, or, if the signal is not present BVP periodical peak in a predetermined time period, it is determined to be verified by the absence of signs of life in a predetermined period of time by determining the verification to be not detected by the living body.

[0055] 在步骤S104中,当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 [0055] In step S104, when the biometric image is a biometric image with pre-stored to be authenticated by the acquired matching succeeds, and when those said to be authenticated by the life detecting blood volume pulse signal is determined based on the to-be verifiers by Authentication.

[0056] 本发明将生物识别与通过血容量脉冲信号对待验证者进行活体检测结合起来,在采用摄像装置来获取待验证者的生物特征图像进行生物识别时,通过血容量脉冲信号来进行活体检测,提高了生物识别的安全性和可靠性。 When the [0056] present invention biometrics with Vivo Detection treated verifier by volume pulse signal combine in use the imaging means to acquire be biometric image of the subject biological recognition, to the living body is detected by the volume pulse signal improved biometric security and reliability.

[0057] 图2示出了根据本发明一个实施例的一种用于身份验证的装置示意图。 [0057] FIG. 2 shows a schematic view of an apparatus for authentication according to one embodiment of the present invention. 如图2所示,该用于身份验证的装置包括:图像获取装置201,匹配装置202,活体检测装置203,身份验证确定通过装置204。 As shown, the apparatus comprises the means for authentication 2: image acquisition means 201, matching means 202, the biological detection device 203, the authentication is determined by means 204.

[0058] 其中,所述图像获取装置201,用于通过摄像装置来获取待验证者的生物特征图像。 [0058] wherein the image acquisition means 201 for obtaining biometric images are to be authenticated by the imaging device.

[0059] 其中,所述摄像装置可以是用于身份验证的设备自带的摄像装置,优选地,该摄像装置可以是诸如移动终端的用户设备自带的摄像装置;所述摄像装置也可以是单独的摄像装置,在单独的摄像装置获取待验证者的生物特征图像后,将所获取的生物特征图像传输给用于身份验证的设备。 [0059] wherein, the imaging means may be a device carrying an imaging device for authentication, preferably, the imaging device may be a user carrying the imaging apparatus such as a mobile terminal device; said imaging means may be after the individual imaging apparatus, the imaging apparatus acquiring an individual biometric image of the subject, the transmission of the acquired biometric image to the device for authentication.

[0060] 可选地,所述图像获取装置可以包括:第一图像获取模块(图中未示出),用于通过所述摄像装置来获取待验证者的一幅或多幅生物特征图像。 [0060] Alternatively, the image obtaining means may comprise: a first image acquisition module (not shown) for acquiring one or a plurality of persons to be verified biometric image obtained by said imaging means.

[0061] 可选地,本发明一个实施例的一种用于身份验证的装置还可以包括:光源开启装置(图中未示出),用于当符合预定规则时,开启所述摄像装置的光源。 Means for authentication [0061] Alternatively, an embodiment of the present invention may further comprise: a light source opening means (not shown), for, when compliance with a predetermined rule, the opening of the imaging device light source. 随后图像获取装置再通过该摄像装置来获取待验证者的生物特征图像。 Then subsequent image acquisition means acquires the biometric image to be authenticated by the imaging device's.

[0062] 其中,所述预定规则可以包括以下一项: [0062] wherein, the predetermined rule may include the following:

[0063] a)在打开该摄像装置准备获取待验证者的生物特征图像时,默认打开该摄像装置的光源; [0063] a) when opening the imaging device is ready to acquire the biometric image to be authenticated person, by default the imaging light source device;

[0064] b)通过检测环境的光线,来判断是否开启该摄像装置的光源,当环境的光线满足需开启光源的条件时,开启该摄像装置的光源。 [0064] b) detecting light passing through the environment, to determine whether the imaging apparatus is turned on the light source, the light source when the light satisfies the condition for an open environment, the light source of the imaging apparatus is turned on. 例如,设定开启光源的条件为环境光线的参数,例如亮度,小于预定的参数阈值等。 For example, the light source setting is on ambient light conditions as a parameter, such as brightness, less than a predetermined threshold value or the like parameter.

[0065] 其中,本发明中所述的生物特征是指每个个体唯一的可以测量或可自动识别和验证的生理特性,包括但不限于指纹,掌纹,人脸等。 [0065] wherein, in the present invention refers to the physiological biometric characteristic may be measured for each individual or unique identification and automatic verification, including but not limited to fingerprints, palm prints, face and the like.

[0066] 本领域技术人员可以理解,上述生物特征仅为举例,其他的生物特征如可适用于本发明,也应包含在本发明保护范围以内,并以引用方式包含于此。 [0066] Those skilled in the art will appreciate that the above is merely an example biometrics, other biometric as applicable to the present invention, should also be included within the scope of the present invention, and incorporated herein by reference.

[0067] 匹配装置202,用于将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配。 [0067] The matching means 202, a biometric image for biometric image stored in the person to be authenticated acquired match.

[0068] 具体地,匹配装置202可以获取待验证者的生物特征图像的ROI (Region ofInterest,兴趣区),随后将该ROI与预存的生物特征图像的ROI进行匹配。 [0068] Specifically, the device 202 may acquire the matching biometric ROI image to be authenticated person (Region ofInterest, region of interest), then the ROI and ROI biometric image matches the pre-stored.

[0069] 以下以掌纹这一生物特征为例,来说明获取待验证者的生物特征图像的R0I。 [0069] In the following the palm print biometric example to illustrate R0I biometric image acquired person to be authenticated.

[0070] 首先,摄像装置获取待验证者的手掌图像,随后匹配装置202对所获取的手掌图像去除背景,确定手掌区域,优选地,可以采用中国专利CN200810114488.5中所提供的去除背景方法,来对本实施例中所获取的手掌图像去除背景。 [0070] First, the imaging apparatus acquires image of the subject to be the palm, the palm image 202 matching means then the acquired background removal, the palm region is determined, preferably, the method of removing the background provided in Chinese Patent CN200810114488.5 may be employed, to remove the background image according to the present embodiment, the palm obtained. 然后,取所确定的手掌区域内的一个内切圆或椭圆作为ROI,该内切圆的半径或内切椭圆的半长轴小于等于该手掌区域的最大内切圆的半径,或者取该内切圆或内切椭圆的内切正方形或长方形作为ROI,其中,对每一个手上的点,都以一个起始值为半径,以该点为圆心画圆,如果这个圆周上所有的点都在手掌内部,则扩大半径直至圆周超出手掌区域,遍历所有的点之后,可以获得该手掌区域的最大内切圆的半径和圆心坐标。 Then, an ellipse or inscribed circle within the palm region taken as the ROI determined, the radius of the inscribed circle or ellipse endo semimajor axis of the palm region is smaller than or equal the maximum radius of the inscribed circle, or to take the inner rounded or oval endo endo the ROI as a square or a rectangle, wherein, for each point of the hand, to have a start value of the radius to the center point of the circle, if all the points on the circumference are after the interior of the palm, the radial expansion until beyond the peripheral region of the palm, through all the points, the palm area can be obtained the maximum inscribed circle radius and center coordinates.

[0071] 在获取待验证者手掌图像的ROI之后,与预存的手掌图像的ROI进行匹配。 [0071] After obtaining the ROI image to be authenticated by the palm, the ROI to match the pre-stored image of the palm. 其中,ROI的匹配可以采用灰度匹配,例如,可以采用归一化的灰度匹配方法,其逐像素地把待验证者手掌图像的ROI的灰度矩阵与预存的ROI的灰度矩阵,按照相似性度量方法进行搜索比较,优选地,可以采用幅度排序相关法,FFT (Fast Fourier Transformation,快速傅里叶变换)相关法,分层搜索的序列判断法等。 Wherein, matching of the ROI can be employed to match the gradation, for example, the gradation of the matching method may employ a normalized, pixel by pixel, which gray-level matrix of the ROI's palm to be authenticated with a prestored gray scale image matrix of the ROI, according to the method of searching for similarity measure comparison, preferably, may be employed to sort the amplitude correlation method, FFT (fast Fourier transformation, fast Fourier transform) correlation, hierarchical search sequence determination method and the like.

[0072] 具体地,匹配装置202还可以从上述ROI中提取生物特征信息,随后将所提取的生物特征信息与预存的生物特征信息进行匹配。 [0072] Specifically, the matching means 202 can also be extracted from the biometric information in the ROI, then extracted biometric information with stored biometric information matches. 优选地,例如对于掌纹这一生物特征,可以采用诸如“小波能量特征”,“模糊方向元素能量特征”,“掌纹线结构特征”,“掌纹的代数特征”,“图像相位及方向特征”,“基于掌纹纹理的特征”,“基于掌纹特征点的特征”等,来进行掌纹特征信息的提取和匹配。 Preferably, for example, the palm print biometrics, may be employed, such as "wavelet energy feature", "blurring direction wherein energy element", "palm line structure feature", "algebraic features of palm", "image phase and direction feature "," palm texture feature-based "," palm-based feature point feature, "and the like, and to extract feature information matches the palmprint.

[0073] 其中,所述预存的ROI和预存的生物特征信息,可以采用如步骤S102中所描述的ROI确定方法和生物特征信息提取方法来进行确定或特征提取,随后存储所确定的ROI信息或所提取的生物特征信息。 [0073] wherein said pre-stored biometric information and prestored ROI, ROI can be employed as described in step S102 determination method and biometric information extraction method to determine or feature extraction, and then storing the determined ROI information, or the extracted biometric information.

[0074] 可选地,当摄像装置获取待验证者的一幅生物特征图像,所述匹配装置202可以包括:第一匹配模块(图中未示出),用于将所获取的待验证者的该幅生物特征图像与预存的生物特征图像进行匹配,当该幅生物特征图像与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0074] Alternatively, when the imaging apparatus acquires a person to be authenticated biometric image, said matching means 202 may include: a first matching module (not shown), a verifier shall be acquired the web biometric image biometric image with pre-stored matching, when a biometric image of the web biometric image with pre-stored matching succeeds, determines biometric image matching biometric image with pre-stored to be authenticated who acquired successfully.

[0075] 可选地,当摄像装置获取待验证者的多幅生物特征图像,所述匹配装置202可以包括:第二匹配模块(图中未示出),用于将所获取的待验证者的多幅生物特征图像分别与预存的生物特征图像进行匹配,当所述多幅生物特征图像中的第一预定数量的生物特征图像,与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0075] Alternatively, when the imaging means to be authenticated acquired by the plurality of biometric images, the matching device 202 may comprise: a second matching module (not shown), a verifier shall be acquired a plurality of biometric images were matched with the prestored biometric image, the biometric image to be authenticated when a first predetermined number of said plurality of biometric images, and image matching biometric successful pre-stored, determines whether the acquired biometric image stored biometric image and success of those matches.

[0076] 根据使用场景的不同,预存的生物特征图像可以是一个,也可以是多个,则所述匹配装置202可以包括:第三匹配模块(图中未示出),用于将所获取的待验证者的生物特征图像与预存的一个或多个生物特征图像进行匹配;将所获取的待验证者的生物特征图像与预存的一个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的一个生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,或,将所获取的待验证者的生物特征图像与预存的多个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的多个生物特征图像中的第二预定数量的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 [0076] According to different usage scenarios, the pre-stored biometric image may be one, or may be a plurality, then the matching means 202 may include: a third matching module (not shown), for the acquired biometric image to be authenticated who match with one or more biometric images pre-stored; when the biometric image to be authenticated by the acquired match it with a biometric image is stored, and when to be authenticated by the acquired a biometric image is a biometric image and the pre-stored matching succeeds, biometrics image matching is successful biometric image stored to be verifier determines whether the acquired or biometric image stored to be verifier the acquired plurality when a biometric matching images, when a second predetermined number of the plurality of biometric images with the pre-stored biometric image to be authenticated acquired by the biometric image matching is successful, the biometric image is determined to be acquired by the verifier image prestored biometric matching success.

[0077] 活体检测装置203,用于基于该待验证者的血容量脉冲信号,来对所述待验证者进行活体检测。 [0077] The biological detection device 203, based on a pulse signal by the blood volume to be authenticated, is performed by detecting the living body to be verified. [0078] 其中,所述活体检测装置203可以在图像获取装置201之前或之后执行,也可以在匹配装置202之后或同步执行。 [0078] wherein the biological detection device 203 may acquire device 201 before or after performing the image 202 may then perform the matching or synchronization means.

[0079] 具体地,所述活体检测装置203可以包括: [0079] In particular, the biological detection device 203 may comprise:

[0080] 血容量脉冲信号获取模块(图中未示出),用于获取所述待验证者的血容量脉冲信号; [0080] The blood volume pulse signal acquisition module (not shown), for obtaining the volume pulse signal to be verifier;

[0081] 生命体征判断模块(图中未示出),用于基于所述血容量脉冲信号,来判断预定时间段内是否存在生命体征; [0081] Vital signs determination module (not shown), based on the volume pulse signal, the presence of vital signs to determine whether a predetermined time period;

[0082] 活体检测确定通过模块(图中未示出),用于当所述预定时间段内存在生命体征,确定所述待验证者通过活体检测。 [0082] is determined by the life detecting module (not shown), is present for a predetermined period of time when the vital signs, to determine the person to be authenticated by the detection of the living body.

[0083] 其中,可以采用光电容积描记法(Photolethysmography, PPG),利用光电手段在活体组织中无创检测血液容量变化,来获取待验证者的血容量脉冲信号。 [0083] wherein, photoplethysmography may be used method (Photolethysmography, PPG), photoelectric means of living tissue in a noninvasive measurement of blood volume changes, blood volume pulse signal to be acquired to the authenticator.

[0084] 其中,所述生命体征是指用来判断病人的病情轻重和危急程度的指征,在本发明中,所述生命体征包括但不限于:脉搏,呼吸,血压等。 [0084] wherein the vital signs are used to judge the severity and extent of the critical patient's indications, in the present invention, the vital signs include, but are not limited to: pulse, respiration, blood pressure. 本领域技术人员可以理解,上述生命体征仅为举例,其他的生命体征如可适用于本发明,也应包含在本发明保护范围以内,并以引用方式包含于此。 Those skilled in the art will appreciate that the above is merely an example of vital signs, other vital signs as applicable to the present invention, should also be included within the scope of the present invention, and incorporated herein by reference.

[0085] 下面以两个示例来说明基于待验证者的BVP信号来对所述待验证者进行活体检测。 [0085] In the following two examples will be described to detect the living body to be verified by the verifier based on the signal to be BVP.

[0086] 示例I [0086] Example I

[0087] 首先,获取待验证者的生物特征图像的ROI中RGB色彩通道所有像素值的平均值,来生成一个原始信号,随后采用拉普拉斯特征映射算法从所述原始信号中提取PPG信号。 The average value of all pixel values ​​in the RGB color channel of ROI [0087] First, a biological feature to be the image of the subject to generate an original signal, and then using the Laplacian mapping algorithm wherein the original signal is extracted from the PPG signal . 通常,PPG医疗仪器包括发光器和接收器,其中,发光器发射特定波长的光束,照射到人体皮肤表面时,光束通过透射或反射方式到达接收器,在此过程中,由于光束受到人体皮肤肌肉组织和血液的吸收,光强有一定的衰减。 Typically, PPG medical instrument comprises a light emitter and a receiver, wherein the light emitter emits a light beam of a specific wavelength, is irradiated to the surface of the skin, the beam reaches the receiver via the transmission or reflection mode, in this process, since the light beam by the human skin and muscle organization and absorbed into the blood, and there is a certain intensity attenuation. 由于心脏周期性搏动引起的血液容量的变化,会影响皮肤和血液对光的吸收量的变化,所以接收器接收到的光的强度呈脉动性变化,将此光强变化信号转换成电信号,可以获得携带有丰富的人体微血管循环系统信息的容量脉搏血流的变化信号,其中所述光强变化信号转换成的电信号即为PPG信号。 Since the periodic changes in the blood volume of the heart beat caused by the change will affect the absorption of light skin and blood, the intensity of light received by the receiver in the form of pulsatile changes, this change in light intensity signal into an electrical signal, can be obtained rich in change signal carrying capacity of the pulsatile flow body microcirculation system information, wherein converting the change in light intensity signal into an electric signal for the PPG signal.

[0088] 随后,从所述PPG信号中提取BVP信号。 [0088] Subsequently, the signal extracted from the BVP PPG signal. 具体地,可以去除PPG信号中的奇异点,对PPG信号进行滤波处理,来获取所述BVP信号。 In particular, the singular point may be removed in the PPG signal, a PPG signal to filtering processing, to acquire the BVP signal.

[0089] 获取BVP信号后,检测在预定时间段内所述BVP信号是否存在周期性的波峰,如果所述BVP信号在预定时间段内存在周期性波峰,则确定所述待验证者在预定时间段内存在生命体征,确定所述待验证者通过活体检测,否则,如果所述BVP信号在预定时间段内不存在周期性波峰,则确定所述待验证者在预定时间段内不存在生命体征,确定所述待验证者不通过活体检测。 [0089] After obtaining the BVP signal, peak detecting the presence of a periodic signal at a predetermined time period of the BVP, if the signal is present BVP periodical peak in a predetermined time period, it is determined that the person to be authenticated at a predetermined time memory segments vital signs, to determine the person to be authenticated by the detection of the living body, or, if the signal is not present BVP periodical peak in a predetermined time period, it is determined to be verified by the absence of signs of life in a predetermined period of time by determining the verification to be not detected by the living body.

[0090] 示例2 [0090] Example 2

[0091] 首先,分别获取待验证者的生物特征图像的ROI中每个RGB通道图片的所有像素值的平均值,来生成分别对应RGB色彩通道的三个原始信号,比较所述三个原始信号的幅度,从中选择幅度最大的一个原始信号,从所述原始信号中提取PPG信号。 [0091] First, each acquired biometric image to be authenticated in the ROI's average of the pixel values ​​for each channel of the RGB image, to generate an original signal corresponding three RGB color channels, comparing the original three signals amplitude, select a maximum amplitude of the original signal, extracts a PPG signal from the original signal. 随后,对所提取的PPG信号进行FFT (Fast Fourier Transformation,快速傅里叶变换)来获得能量谱,从FFT变换后获得的能量谱中选取预定频率范围内的部分谱段作为BVP信号,优选地,考虑到人的脉搏范围一般在45bpm (Beat Per Minute)至240bpm之间,可以选择0.75Hz至4Hz之间的能量谱。 Subsequently, the extracted PPG signal FFT (Fast Fourier Transformation, fast Fourier transform) to obtain the energy spectrum, the energy spectrum obtained from the FFT section selected spectral bands within a predetermined frequency range as signal BVP, preferably , taking into account the pulse of the range generally between 45bpm (Beat Per Minute) to 240 bpm, the energy may be selected between 0.75Hz to 4Hz spectrum.

[0092] 获取BVP信号后,检测在预定时间段内所述BVP信号是否存在周期性的波峰,如果所述BVP信号在预定时间段内存在周期性波峰,则确定所述待验证者在预定时间段内存在生命体征,确定所述待验证者通过活体检测,否则,如果所述BVP信号在预定时间段内不存在周期性波峰,则确定所述待验证者在预定时间段内不存在生命体征,确定所述待验证者不通过活体检测。 [0092] After obtaining the BVP signal, peak detecting the presence of a periodic signal at a predetermined time period of the BVP, if the signal is present BVP periodical peak in a predetermined time period, it is determined that the person to be authenticated at a predetermined time memory segments vital signs, to determine the person to be authenticated by the detection of the living body, or, if the signal is not present BVP periodical peak in a predetermined time period, it is determined to be verified by the absence of signs of life in a predetermined period of time by determining the verification to be not detected by the living body.

[0093] 身份验证确定通过装置204,用于当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 [0093] Authentication is determined by means 204 for biometric image with pre-stored biometric image when the person to be authenticated acquired matching succeeds, and when the person to be authenticated by the living body based on the detection volume pulse signal, for determining the It is to be verified authenticated.

[0094] 本发明将生物识别与通过血容量脉冲信号对待验证者进行活体检测结合起来,在采用摄像装置来获取待验证者的生物特征图像进行生物识别时,通过血容量脉冲信号来进行活体检测,提高了生物识别的安全性和可靠性。 When the [0094] present invention biometrics with Vivo Detection treated verifier by volume pulse signal combine in use the imaging means to acquire be biometric image of the subject biological recognition, to the living body is detected by the volume pulse signal improved biometric security and reliability.

[0095] 需要注意的是,本发明可在软件和/或软件与硬件的组合体中被实施,例如,本发明的各个装置可采用专用集成电路(ASIC)或任何其他类似硬件设备来实现。 [0095] It should be noted that the present invention may be implemented in a combination of software and / or software and hardware, for example, the various devices of the invention may employ specific integrated circuit (ASIC) or any other similar hardware implemented. 在一个实施例中,本发明的软件程序可以通过处理器执行以实现上文所述步骤或功能。 In one embodiment, the software program of the present invention may be implemented by a processor to perform the steps or functions described above. 同样地,本发明的软件程序(包括相关的数据结构)可以被存储到计算机可读记录介质中,例如,RAM存储器,磁或光驱动器或软磁盘及类似设备。 Similarly, the software program of the present invention (including associated data structures) may be stored in a computer-readable recording medium, eg, RAM memory, magnetic or optical drive or a floppy disk and the like. 另外,本发明的一些步骤或功能可采用硬件来实现,例如,作为与处理器配合从而执行各个步骤或功能的电路。 Further, some steps or functions of the present invention may be implemented in hardware, e.g., as a complex with the processor to perform the respective steps or functions of the circuit.

[0096] 对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。 In the case [0096] to those skilled in the art, that the invention is not limited to the details of the above-described exemplary embodiment, but without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms. 因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本发明内。 Therefore, no matter from what point of view, the embodiments should be considered exemplary, and not limiting, the scope of the invention being indicated by the appended claims rather than by the foregoing description, the appended claims are therefore intended to All changes which come within the meaning and range of equivalents thereof should be covered within the present invention. 不应将权利要求中的任何附图标记视为限制所涉及的权利要求。 In the claims should not be considered as any reference numerals as claimed in claim limitations involved. 此夕卜,显然“包括” 一词不排除其他单元或步骤,单数不排除复数。 Bu this evening, apparently "comprising" does not exclude other elements or steps, the singular does not exclude a plurality. 系统权利要求中陈述的多个单元或装置也可以由一个单元或装置通过软件或者硬件来实现。 A plurality of units or means recited in the claims the system can also be implemented by a single unit or through software or hardware. 第一,第二等词语用来表示名称,而并不表示任何特定的顺序。 The first, second, etc. are used to indicate the name, but does not indicate any particular sequence.

Claims (14)

  1. 1.一种身份验证的方法,其特征在于,包括: 通过摄像装置来获取待验证者的生物特征图像; 将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配; 其中,所述方法还包括: 基于该待验证者的血容量脉冲信号,来对所述待验证者进行活体检测;以及当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 An authentication method comprising: acquiring a biometric image to be authenticated by the imaging device's; the biometric image to be acquired by the verifier will be matched with the prestored biometric images; wherein, the method further comprising: based on the blood volume pulse signal person to be authenticated, is performed by detecting the living body to be verified; biometric image and image with pre-stored biometric verifier to be acquired when the matching succeeds, and when the person to be authenticated based on the living body by detecting blood volume pulse signal, determines that the person to be authenticated by the authentication.
  2. 2.根据权利要求1所述的方法,其特征在于,所述基于待验证者的血容量脉冲信号来对该待验证者进行活体检测包括: 获取所述待验证者的血容量脉冲信号; 基于所述血容量脉冲信号,来判断预定时间段内是否存在生命体征;以及当所述预定时间段内存在生命体征,确定所述待验证者通过活体检测。 2. The method according to claim 1, wherein said pulse signal based on blood volume to be verified by the person to be authenticated for detecting living body comprising: obtaining the volume pulse signal to be verifier; Based the volume pulse signal, the presence of vital signs to determine whether a predetermined period of time; and the presence of vital signs when the predetermined time period, determining that the person to be authenticated by the detection of the living body.
  3. 3.根据权利要求2所述的方法,其特征在于,所述生命体征包括:脉搏,呼吸,血压。 3. The method according to claim 2, wherein said vital signs comprising: pulse, respiration, blood pressure.
  4. 4.根据权利要求1 所述的方法,其特征在于,还包括: 当符合预定规则时,开启所述摄像装置的光源。 4. The method according to claim 1, characterized in that, further comprising: when a line with a predetermined rule, the lamp is switched to the imaging apparatus.
  5. 5.根据权利要求1所述的方法,其特征在于,所述通过摄像装置来获取待验证者的生物特征图像包括: 通过摄像装置来获取待验证者的一幅或多幅生物特征图像; 其中,所述将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配包括: 将所获取的待验证者的该幅生物特征图像与预存的生物特征图像进行匹配,当该幅生物特征图像与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功;或将所获取的待验证者的多幅生物特征图像分别与预存的生物特征图像进行匹配,当所述多幅生物特征图像中的第一预定数量的生物特征图像,与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 5. The method according to claim 1, wherein said acquiring biometric image to be authenticated by the imaging means comprises those: acquiring one or a plurality of persons to be verified biometric image by the imaging means; wherein the biometric image to be authenticated biometric image acquired by the pre-stored matching comprising: a biometric image to be authenticated by the web of the acquired biometric image with pre-stored matching web when the biological biometric feature biometric image pre-stored image and the image matching is successful, the biometric image to be stored in the verifier determines whether the acquired matching is successful; or multiple biometric images to be authenticated by the acquired prestored bio respectively wherein the image matching, when the biometric image with pre-stored biometric image to be authenticated by biometric image of a first predetermined number of said plurality of biometric images, an image with pre-stored biometric matching succeeds, determines whether the acquired a successful match.
  6. 6.根据权利要求1所述的方法,其特征在于,所述将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配包括: 将所获取的待验证者的生物特征图像与预存的一个或多个生物特征图像进行匹配;将所获取的待验证者的生物特征图像与预存的一个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的一个生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功;或将所获取的待验证者的生物特征图像与预存的多个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的多个生物特征图像中的第二预定数量的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 6. The method according to claim 1, characterized in that the biometric image to be authenticated by the acquired image with pre-stored biometric matching comprising: a biometric image to be authenticated and who acquired one or more biometric image stored in the matching; when a biological biometric image with pre-stored to be authenticated by the acquired feature image matching, when a biometric biometric image with pre-stored to be authenticated who acquired the image matching is successful, biometric image matching biometric image stored to be verifier determines whether the acquired successfully; or a plurality of biological biometric image with pre-stored to be authenticated by the acquired feature images match, when the acquired a second predetermined number of the plurality of biometric images with the pre-stored biometric image of the person to be verified biometric image matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.
  7. 7.根据权利要求1至6中任一项所述的方法,其特征在于,所述生物特征包括以下至少一种:指纹,掌纹,人脸。 7. The method according to claim 6, characterized in that the biological characteristic comprises at least one of: fingerprints, palm prints, face.
  8. 8.一种用于身份验证的装置,其特征在于,包括: 图像获取装置,用于通过摄像装置来获取待验证者的生物特征图像;匹配装置,用于将所获取的待验证者的生物特征图像与预存的生物特征图像进行匹配; 所述用于身份验证的装置还包括: 活体检测装置,用于基于该待验证者的血容量脉冲信号,来对所述待验证者进行活体检测;以及身份验证确定通过装置,用于当所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,且当所述待验证者通过基于血容量脉冲信号的活体检测,确定该待验证者通过身份验证。 8. An apparatus for authentication, characterized by comprising: image acquisition means for acquiring the person to be authenticated by the biometric image pickup apparatus; matching means for biological verifier will be acquired biometric image stored in the image feature matching; for the authentication apparatus further comprises: means detecting a living body, blood volume pulse signal based on the person to be authenticated, is performed by detecting the living body to be verified; and is determined by the authentication means for biometric image with pre-stored when the person to be authenticated acquired biometric image matching is successful, and when the person to be authenticated by the living body based on the detection volume pulse signal, determining that the person to be authenticated authenticated.
  9. 9.根据权利要求8所述的装置,其特征在于,所述活体检测装置包括: 血容量脉冲信号获取模块,用于获取所述待验证者的血容量脉冲信号; 生命体征判断模块,用于基于所述血容量脉冲信号,来判断预定时间段内是否存在生命体征;以及活体检测确定通过模块,用于当所述预定时间段内存在生命体征,确定所述待验证者通过活体检测。 9. The apparatus according to claim 8, wherein said living body detection apparatus comprising: a volume pulse signal acquisition module for acquiring blood volume pulse signal to be verifier; vital signs determining means for the pulse signal based on blood volume, vital signs to determine whether there is a predetermined period of time; and a living body is determined by the detection module, configured to, when the predetermined time period is present vital signs, to determine the person to be authenticated by the detection of the living body.
  10. 10.根据权利要求9所述的装置,其特征在于,所述生命体征包括:脉搏,呼吸,血压。 10. The apparatus according to claim 9, wherein said vital signs comprising: pulse, respiration, blood pressure.
  11. 11.根据权利要求8所述的装置,其特征在于,还包括: 光源开启装置,用于当符合预定规则时,开启所述摄像装置的光源。 11. The apparatus according to claim 8, characterized in that, further comprising: a light source means is turned on, when a predetermined rule compliance, the light source of the imaging device is turned on.
  12. 12.根据权利要求8所述的装置,其特征在于, 所述图像获取装置包括: 第一图像获取模块,用于通过摄像装置来获取待验证者的一幅或多幅生物特征图像; 所述匹配装置包括: 第一匹配模块,用于将所获取的待验证者的该幅生物特征图像与预存的生物特征图像进行匹配,当该幅生物特征图像与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功;或第二匹配模块,用于将所获取的待验证者的多幅生物特征图像分别与预存的生物特征图像进行匹配,当所述多幅生物特征图像中的第一预定数量的生物特征图像,与预存的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 12. The apparatus according to claim 8, wherein said image acquisition apparatus comprising: a first image acquiring means for acquiring an image pickup means to be authenticated by a person or a plurality of biometric images; the matching means comprises: a first matching module, configured to be authenticated biometric image acquired by the image of the web and a pre-stored biometric matching biometric image of the web when the biometric image with pre-stored matching succeeds, determines that biometric image with pre-stored biometric image to be authenticated acquired by matching succeeds; or a second matching module, configured to be a plurality of biometric images acquired by the verifier respectively matched with the prestored biometric image, when a first plurality of said predetermined number of biometric images of biometric image, the biometric image stored in the matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.
  13. 13.根据权利要求8所述的装置,其特征在于,所述匹配装置包括: 第三匹配模块,用于将所获取的待验证者的生物特征图像与预存的一个或多个生物特征图像进行匹配;将所获取的待验证者的生物特征图像与预存的一个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的一个生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功,或,将所获取的待验证者的生物特征图像与预存的多个生物特征图像进行匹配时,当所获取的待验证者的生物特征图像与预存的多个生物特征图像中的第二预定数量的生物特征图像匹配成功,确定所获取的待验证者的生物特征图像与预存的生物特征图像匹配成功。 13. The apparatus according to claim 8, characterized in that said matching means comprises: a third matching module, configured to a pre-stored biometric image to be authenticated or acquired by a plurality of biometric images matching; when a biological biometric image with pre-stored to be authenticated by the acquired feature image matching, when a biological biometric image with pre-stored to be authenticated by the acquired feature image matching succeeds, determines whether the acquired be authenticated biometric image biometric image with pre-stored's successful match, or a plurality of biological biometric image with pre-stored to be authenticated by the acquired feature images match, when the biometric image to be authenticated who acquired the a biometric image of the second predetermined number of the plurality of images stored in the biometric matching is successful, the biometric matching biometric image and the image to be stored in the verifier determines whether the acquired successfully.
  14. 14.根据权利要求8至13中任一项所述的装置,其特征在于,所述生物特征包括以下至少一种:指纹,掌纹,人脸。 14. The apparatus 8-1 according to any of claims 13, wherein said biometric comprises at least one of: fingerprints, palm prints, face.
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