CN102024147B - Biological image collection instrument for fingerprints and palm prints - Google Patents
Biological image collection instrument for fingerprints and palm prints Download PDFInfo
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Abstract
本发明公开了一种指纹掌纹生物图像采集仪，它包括支架、成像单元、控制三部分。支架部分包括：第一层面板、宽透射率透明板、高反射白板、黑白灰度校正条、轨道槽、第二层固定板、支架底板、空心侧面板、侧面支柱、横向框架、高度调节旋钮、导线槽、侧盖板；成像单元部分包括：前置镜头组和CCD两部分，其中前置镜头组包括入射透镜、狭缝、准直镜、分光单元、会聚透镜；控制部分包括：触摸屏、喇叭、宽光谱光源、光源控制器、步进电机、控制单元、电源模块、服务器、查询终端。本发明通过扫描的方式可同时获取手掌的空间结构信息和生化信息，成像速度快，光谱范围宽，可以为生物特征识别和掌纹诊病提供丰富的生物信息。
The invention discloses a fingerprint and palmprint biological image acquisition instrument, which comprises three parts: a bracket, an imaging unit and a control unit. The bracket part includes: first layer panel, wide transmittance transparent plate, high reflective whiteboard, black and white gray scale correction strip, track groove, second layer fixing plate, bracket bottom plate, hollow side panel, side pillar, transverse frame, height adjustment knob , wire guide, side cover; the imaging unit part includes: front lens group and CCD two parts, wherein the front lens group includes incident lens, slit, collimating mirror, beam splitting unit, converging lens; control part includes: touch screen, Speaker, wide-spectrum light source, light source controller, stepping motor, control unit, power module, server, query terminal. The invention can simultaneously acquire the spatial structure information and biochemical information of the palm by means of scanning, has fast imaging speed and wide spectral range, and can provide rich biological information for biological feature recognition and palm print diagnosis.
Description
技术领域 technical field
本发明涉及一种指纹掌纹采集装置，特别是一种指纹掌纹生物图像采集仪；用于生物特征识别和医学诊断领域。The invention relates to a fingerprint and palmprint collection device, in particular to a fingerprint and palmprint biological image collection device, which is used in the fields of biological feature identification and medical diagnosis.
背景技术 Background technique
生物识别技术是指根据人的生理特征或行为特征进行身份鉴别的技术，该技术以信息处理技术为手段，具有安全性、有效性和易用性等特点。由于其为鉴别身份提供了一个方便可靠的解决方案，因此在网络安全、身份认证等方面有着广阔的应用前景。指纹和掌纹是人类的两项重要生理特征，将其用于身份鉴别具有独特的优势，如采集方式不涉及隐私问题而更容易被接受、鉴别结果更加稳定可靠、具有唯一性等。因此，指纹和掌纹的采集与识别逐渐成为生物特征识别领域研究的热点之一。Biometric technology refers to the technology of identity identification based on human physiological or behavioral characteristics. This technology uses information processing technology as a means and has the characteristics of safety, effectiveness and ease of use. Because it provides a convenient and reliable solution for identity identification, it has broad application prospects in network security and identity authentication. Fingerprints and palmprints are two important physiological characteristics of human beings. Using them for identity identification has unique advantages, such as the collection method does not involve privacy issues and is more easily accepted, and the identification results are more stable, reliable, and unique. Therefore, the collection and recognition of fingerprints and palmprints has gradually become one of the hotspots in the field of biometrics.
另一方面，生物特征技术还可以应用于人类疾病的诊断，依据指纹掌纹特征进行疾病诊断还是一个较为新颖的应用领域。掌纹医学是由中医学望、闻、问、切中的手诊发展而来。由于掌纹诊病的整体性、全方性、系统性，因此这是一门边缘交叉学科，并具有包容性和整体性。它生动而又形象、直观地展示了人体生命的系统性和自我控制性，是系统论、控制论在人体生命科学中的应用。它包括掌形、掌色、皮纹、指甲等各方面的内容。On the other hand, biometric technology can also be applied to the diagnosis of human diseases, and disease diagnosis based on fingerprint and palmprint features is still a relatively new application field. Palm print medicine is developed from traditional Chinese medicine's hand diagnosis of looking, smelling, asking, and perceiving. Due to the holistic, comprehensive and systematic nature of palm print diagnosis, it is an interdisciplinary subject with inclusiveness and integrity. It vividly, vividly and intuitively demonstrates the system and self-control of human life, and is the application of system theory and cybernetics in human life science. It includes palm shape, palm color, skin texture, nails and other aspects.
获取高质量的指纹和掌纹图像是生物特征识别和掌纹诊病的第一步，指纹掌纹图像质量的好坏将直接影响其识别的准确率，也影响医学病理判定的准确性。目前用于指纹掌纹图像的采集方法主要包括：按指掌印、用扫描仪获取、用数码相机或电荷耦合元件(CCD)获取三类。这些方法主要以获取指纹掌纹的两维图像为目的，因此只能给出指纹掌纹的结构信息，虽然有的发明申请如“三维手形和掌纹的多模态生物图像采集装置”(申请号：201010100960.7)可以获取手掌的三维图像信息，但是其基础仍然是提供目标的表面结构信息，随着识别精度要求的提高，这种只能提供表面结构信息的图像已经不能满足生物特征识别和诊病的要求。Obtaining high-quality fingerprint and palmprint images is the first step in biometric identification and palmprint diagnosis. The quality of fingerprint and palmprint images will directly affect the accuracy of recognition and the accuracy of medical pathology judgment. Currently, the collection methods for fingerprint and palmprint images mainly include: pressing the finger print, obtaining with a scanner, and obtaining with a digital camera or a charge-coupled device (CCD). These methods are mainly aimed at obtaining two-dimensional images of fingerprints and palmprints, so they can only provide structural information of fingerprints and palmprints. No.: 201010100960.7) can obtain the three-dimensional image information of the palm, but its basis is still to provide the surface structure information of the target. With the improvement of recognition accuracy requirements, this kind of image that can only provide surface structure information can no longer meet the requirements of biometric identification and diagnosis. disease requirements.
发明内容Contents of the invention
本发明的目的是针对现有技术用于指纹掌纹图像采集的不足而提供的一种指纹掌纹生物图像采集仪。该采集仪采用了全新的指纹掌纹信息获取方式，一次采集即可以同时获取手掌两维空间数据信息和所有检测点的生化信息，即包含了丰富指纹掌纹信息的数据立方体。与普通的指纹掌纹图像相比，该采集仪采集的数据能够为指纹掌纹的识别提供更多有用信息，从而提高识别的精度。另外，这种丰富的信息也有助于与传统掌纹诊病的数据以及西医的生理、生化等临床指标信息相结合，系统辩证、综合进行分析找到中医掌纹诊病证候以及现代医学体征指标的一系列内在联系，促进中医掌纹诊病的现代化。The object of the present invention is to provide a fingerprint and palmprint biometric image collector for the deficiencies of the prior art for fingerprint and palmprint image collection. The collector adopts a brand-new fingerprint and palmprint information acquisition method, which can simultaneously acquire two-dimensional palmprint spatial data information and biochemical information of all detection points in one acquisition, that is, a data cube containing rich fingerprint and palmprint information. Compared with ordinary fingerprint and palmprint images, the data collected by the collector can provide more useful information for fingerprint and palmprint recognition, thereby improving the recognition accuracy. In addition, this rich information is also helpful to combine with traditional palmprint diagnosis data and Western medicine's physiological, biochemical and other clinical index information, systematic dialectical and comprehensive analysis to find TCM palmprint diagnosis syndromes and modern medical signs and indicators A series of internal connections to promote the modernization of TCM palm print diagnosis.
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
一种指纹掌纹生物图像采集仪，它包括支架、成像单元、控制三部分。支架部分包括：第一层面板、宽透射率透明板、高反射白板、黑白灰度校正条、轨道槽、第二层固定板、支架底板、空心侧面板、侧面支柱、横向框架、高度调节旋钮、导线槽及侧盖板；成像单元部分包括：前置镜头组和CCD两部分，其中前置镜头组包括入射透镜、狭缝、准直镜、分光单元及会聚透镜；控制部分包括：触摸屏、喇叭、宽光谱光源、光源控制器、步进电机、控制单元、电源模块、服务器及查询终端。A fingerprint and palmprint biological image collector, which includes three parts: a bracket, an imaging unit and a control unit. The bracket part includes: first layer panel, wide transmittance transparent plate, high reflective whiteboard, black and white gray scale correction strip, track groove, second layer fixing plate, bracket bottom plate, hollow side panel, side pillar, transverse frame, height adjustment knob , wire guide and side cover; the imaging unit part includes: front lens group and CCD two parts, wherein the front lens group includes incident lens, slit, collimating mirror, beam splitting unit and converging lens; the control part includes: touch screen, Speaker, wide-spectrum light source, light source controller, stepping motor, control unit, power module, server and query terminal.
其中支架部分的连接：第一层面板、空心侧面板和支架底板呈C型连接，作为整个扫描采集框架，第一层面板上侧安装固定有触摸屏和喇叭，用于人机交互和扫描结果的输出显示，第一层面板下侧覆盖有高反射白板，用于对透射到面板上的光进行漫反射，形成白色背景指掌纹图像；宽透射率透明板固定于横向框架中，横向框架两端分别固定到侧面支柱和空心侧面板上，在采集指掌纹时，手掌置于该宽透射率透明板上，宽透射率透明板的一侧固定有黑白灰度校正条，用于对采集的图像进行预处理和校正；宽光谱光源位于横向框架的下侧，分别通过高度调节旋钮固定到空心侧面板和侧面支柱上，对采集目标进行均匀的环形照明；第二层固定板两端分别固定于侧面支柱和空心侧面板上，第二层固定板上开有轨道槽，使成像单元可以在轨道槽上平行移动；侧盖板分别固定于侧面支柱和空心侧面板上，对横向框架、宽光谱光源、第二层固定板、和支架底板进行封装，形成一个整体机柜。The connection of the bracket part: the first layer panel, the hollow side panel and the bracket bottom plate are C-shaped connection, as the whole scanning acquisition frame, the upper side of the first layer panel is fixed with a touch screen and a speaker, which is used for human-computer interaction and scanning results. The output shows that the underside of the first panel is covered with a highly reflective white board, which is used to diffusely reflect the light transmitted to the panel to form a white background finger and palm print image; the wide transmittance transparent board is fixed in the horizontal frame, and the horizontal frame The ends are respectively fixed to the side pillars and the hollow side panel. When collecting finger and palm prints, the palm is placed on the wide transmittance transparent plate. One side of the wide transmittance transparent plate is fixed with a black and white gray scale correction bar for the collection The wide-spectrum light source is located on the lower side of the horizontal frame, and is respectively fixed to the hollow side panel and the side pillar through the height adjustment knob to provide uniform ring illumination for the acquisition target; the two ends of the second layer of the fixing plate It is fixed on the side pillars and the hollow side panels, and there is a track groove on the second layer of the fixing plate, so that the imaging unit can move in parallel on the track grooves; The wide-spectrum light source, the second-layer fixing plate, and the bracket bottom plate are packaged to form an integral cabinet.
成像单元的连接：前置镜头的入射透镜、狭缝、准直镜、分光单元、会聚透镜依次成光路连接，其后端耦合到CCD上。手掌被宽光谱光源照明，瞬时视场内的手掌条带首先成像于光路的狭缝处，再经过分光单元后，在垂直手掌条带方向上按照波长色散，最后成像于CCD像面，再结合推扫动作就可以获得整个手掌的图像立方体。The connection of the imaging unit: the entrance lens, slit, collimating mirror, beam splitting unit, and converging lens of the front lens are sequentially connected in an optical path, and the rear end is coupled to the CCD. The palm is illuminated by a wide-spectrum light source, and the palm strip in the instantaneous field of view is first imaged at the slit of the optical path, and then passes through the light splitting unit, and is dispersed according to the wavelength in the direction vertical to the palm strip, and finally imaged on the CCD image surface, and then combined The image cube of the entire palm can be obtained by pushing and sweeping.
控制部分的连接：控制单元通过穿过空心侧面板的控制线和数据线连接到触摸屏和喇叭上，实现人机交互，输出采集的图像数据和分析结果；控制单元通过穿过导线槽的控制线和数据线连接到CCD和步进电机上，用于采集图像数据和控制步进电机平动，实现对手掌的推扫；控制单元还连接到光源控制器上，实现根据测量环境的需要对光源进行自动调节；控制单元连接到服务器以获取预存的指纹掌纹信息，并将新采集的数据信息保存到服务器；控制单元连接到查询终端上，支持对采集的数据的查询和预处理操作；控制单元还具有数据通信接口，可以连接打印机等其他外围设备，将数据采集和分析结果输出。电源模块连接到步进电机、光源控制器、控制单元上，负责提供各个部件工作所需要的不同类型的电压电流。Connection of the control part: the control unit is connected to the touch screen and the speaker through the control line and data line passing through the hollow side panel to realize human-computer interaction and output the collected image data and analysis results; the control unit passes through the control line through the wire groove And the data line is connected to the CCD and the stepping motor to collect image data and control the translation of the stepping motor to realize the push-broom of the palm; the control unit is also connected to the light source controller to realize the adjustment of the light source according to the needs of the measurement environment. Carry out automatic adjustment; the control unit is connected to the server to obtain the pre-stored fingerprint and palmprint information, and save the newly collected data information to the server; the control unit is connected to the query terminal to support the query and preprocessing of the collected data; control The unit also has a data communication interface, which can be connected to printers and other peripheral devices to output data collection and analysis results. The power supply module is connected to the stepper motor, light source controller, and control unit, and is responsible for providing different types of voltage and current required for the work of each component.
通过连续扫描采集整个手掌不同波长的图像，最后即可获取目标的多维度数据。该数据既包含了指纹掌纹部的空间结构信息，也包含了每一象素点的光谱信息。通过对这些数据的综合分析，结合一定的智能识别分析算法，可以进一步提高指纹掌纹识别的精度，可以较好地贯彻掌纹诊病“整体观与辨证”的思想原则，将中医掌纹诊病与现代的科学技术相结合起来，促进掌纹诊病的现代化和标准化。Images of different wavelengths of the entire palm are collected by continuous scanning, and finally the multi-dimensional data of the target can be obtained. This data not only includes the spatial structure information of the palmprint part of the fingerprint, but also includes the spectral information of each pixel. Through the comprehensive analysis of these data, combined with certain intelligent recognition and analysis algorithms, the accuracy of fingerprint and palmprint recognition can be further improved, and the ideological principle of "holistic view and syndrome differentiation" in palmprint diagnosis can be better implemented. The combination of disease and modern science and technology will promote the modernization and standardization of palm print diagnosis.
附图说明 Description of drawings
图1为本发明结构示意图。Fig. 1 is a schematic diagram of the structure of the present invention.
具体实施方式 Detailed ways
实施例Example
下面以图1为实施例，说明本发明的结构特征，技术性能和效果。Below with Fig. 1 as embodiment, illustrate structural feature, technical performance and effect of the present invention.
本实施例中，第一层面板1、第二层固定板6、支架底板7、空心侧面板20、侧面支柱21、横向框架22、侧盖板24构成了四面封闭的机柜，用于封装前置镜头组12、CCD 13、步进电机14、控制单元15、电源模块16，并且固定触摸屏8、喇叭9、高反射白板2、黑白灰度校正条3、宽透射率透明板4、宽光谱光源10、光源控制器11。第一层面板1的一端固定于空心侧面板20上，第一层面板1的上侧安装有触摸屏8和喇叭9，下侧安装有高反射白板2；横向框架22的两端分别固定于空心侧面板20和侧面支柱21上，横向框架22的中间部分为宽透射率透明板4，其一侧固定有黑白灰度校正条3；宽光谱光源10位于横向框架22的下侧，分别通过高度调节旋钮25固定到空心侧面板20和侧面支柱21上，对采集目标进行均匀的环形照明；第二层固定板6两端分别固定于空心侧面板20和侧面支柱21上，其上开有轨道槽5和导线槽23，轨道槽5上耦合有步进电机14，步进电机14上固定有CCD13和成光路连接的前置镜头组12，在控制单元15的控制下使步进电机14在轨道槽上平动，从而完成对整个手掌的推扫；支架底板7上固定有控制单元15和电源模块16，控制单元15分别连接到步进电机14、CCD13、电源模块16、光源控制器11、定触摸屏8、喇叭9，分别实现推扫控制、数据采集、光源控制和人机交互。In this embodiment, the first layer panel 1, the second layer fixing plate 6, the bracket bottom plate 7, the hollow side panel 20, the side pillar 21, the transverse frame 22, and the side cover plate 24 constitute a four-sided closed cabinet, which is used for encapsulation. Set lens group 12, CCD 13, stepping motor 14, control unit 15, power supply module 16, and fixed touch screen 8, speaker 9, high reflection white board 2, black and white gray scale correction strip 3, wide transmittance transparent board 4, wide spectrum Light source 10, light source controller 11. One end of the first layer panel 1 is fixed on the hollow side panel 20, a touch screen 8 and a speaker 9 are installed on the upper side of the first layer panel 1, and a high reflection whiteboard 2 is installed on the lower side; On the side panels 20 and the side pillars 21, the middle part of the transverse frame 22 is a wide transmittance transparent plate 4, one side of which is fixed with a black and white grayscale correction bar 3; the wide-spectrum light source 10 is located on the lower side of the transverse frame 22, respectively through the height The adjustment knob 25 is fixed on the hollow side panel 20 and the side pillar 21 to uniformly illuminate the collection target; the two ends of the second layer of fixing plate 6 are respectively fixed on the hollow side panel 20 and the side pillar 21, and there are tracks on it Groove 5 and wire groove 23, are coupled with stepper motor 14 on track groove 5, are fixed with CCD13 and become the front lens group 12 that optical path is connected on the stepper motor 14, make stepper motor 14 under the control of control unit 15 Translational movement on the track groove, thereby completing the push-broom of the entire palm; a control unit 15 and a power module 16 are fixed on the support bottom plate 7, and the control unit 15 is respectively connected to the stepper motor 14, CCD13, power module 16, and light source controller 11 , a fixed touch screen 8, and a speaker 9 to realize push-broom control, data collection, light source control and human-computer interaction respectively.
前置镜头组12包括依次成光路连接的入射透镜1201、狭缝1202、准直镜1203、分光单元1204、会聚透镜1205，手掌条带图像最后成像于CCD 13上，在步进电机14的带动下对手掌进行平动推扫。The front lens group 12 comprises an incident lens 1201, a slit 1202, a collimating mirror 1203, a light splitting unit 1204, and a converging lens 1205 that are connected in an optical path in turn, and the palm strip image is finally imaged on the CCD 13, driven by the stepper motor 14 Press and sweep in parallel with the palm of your hand.
高反射白板2、黑白灰度校正条3、宽透射率透明板4、宽光谱光源10、光源控制器11、控制单元15、查询终端18和服务器17构成了系统的数据采集处理和控制部分，用于控制系统协调工作、采集手掌图像数据立方体并进行智能识别分析；黑白灰度校正条3固定于宽透射率透明板4的一侧，用于对采集的图像数据进行标校；查询终端18可以对控制单元15采集的数据进行预处理和查询操作，也可以对存储于服务器17上的历史掌纹数据进行对比分析。High reflection white board 2, black and white gray scale correction strip 3, wide transmittance transparent board 4, wide spectrum light source 10, light source controller 11, control unit 15, query terminal 18 and server 17 constitute the data acquisition processing and control part of the system, It is used to coordinate the work of the control system, collect the palm image data cube, and perform intelligent identification and analysis; the black and white grayscale correction bar 3 is fixed on one side of the wide transmittance transparent plate 4, and is used to calibrate the collected image data; the query terminal 18 The data collected by the control unit 15 can be preprocessed and searched, and the historical palmprint data stored on the server 17 can also be compared and analyzed.
运行于控制单元15和查询终端18上的数据采集分析软件主要实现以下功能：工作参数设置、各部件控制、仪器定标、指掌纹数据采集、实时图像显示、图像数据格式转换、特征提取、智能识别和分析、疾病初步诊断等。The data collection and analysis software running on the control unit 15 and the query terminal 18 mainly realizes the following functions: working parameter setting, control of each component, instrument calibration, finger and palmprint data collection, real-time image display, image data format conversion, feature extraction, Intelligent identification and analysis, preliminary diagnosis of diseases, etc.
本发明通过扫描和分光的方式同时获取了手掌的图像立方体数据，与传统的采集方式不同，这种新的采集方式既可以获取指纹掌纹的空间几何结构信息，也可以获取手掌的生化信息，所提供的信息在生物特征识别，特别是身份认证和掌纹诊病方面具有重要的意义。The present invention obtains the image cube data of the palm simultaneously by means of scanning and light splitting. Different from the traditional collection method, this new collection method can not only obtain the spatial geometric structure information of the fingerprint palmprint, but also obtain the biochemical information of the palm. The information provided is of great significance in biometric identification, especially identity authentication and palm print diagnosis.
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| CN102436577B (en) * | 2011-11-26 | 2014-06-11 | 北京工业大学 | Reflective digital holographic fingerprint imaging device |
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| CN111095284B (en) * | 2019-08-23 | 2023-09-22 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device, fingerprint detection method and electronic equipment |
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| GB2173332A (en) * | 1984-01-30 | 1986-10-08 | Identix Inc | Fingerprint imaging apparatus |
| CN2154020Y (en) * | 1993-03-26 | 1994-01-26 | 张光伟 | Absorb instrument for finger print |
| US5548394A (en) * | 1995-03-16 | 1996-08-20 | Printrak International Inc. | Scanning fingerprint reading |
| CN1801182A (en) * | 2005-07-11 | 2006-07-12 | 张炯里 | Fingerprint acquisition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2173332A (en) * | 1984-01-30 | 1986-10-08 | Identix Inc | Fingerprint imaging apparatus |
| CN2154020Y (en) * | 1993-03-26 | 1994-01-26 | 张光伟 | Absorb instrument for finger print |
| US5548394A (en) * | 1995-03-16 | 1996-08-20 | Printrak International Inc. | Scanning fingerprint reading |
| CN1801182A (en) * | 2005-07-11 | 2006-07-12 | 张炯里 | Fingerprint acquisition device |
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