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    • 1. 发明授权
    • License plate information reader device for motor vehicles
    • 汽车牌照信息阅读器
    • US06373962B1
    • 2002-04-16
    • US09296606
    • 1999-04-23
    • Takeo KanadeTaizo UmezakiToshio Hamada
    • Takeo KanadeTaizo UmezakiToshio Hamada
    • G06K900
    • G06K9/3258G06K2209/15
    • In a license plate information reader device (A) for motor vehicles, a CCD camera (1) is provided to produce video image data (11) involving a license plate obtained by photographing a front and rear portion of a motor vehicle. An A/D converter (3) produces a digital multivalue image data (31) by A/D converting the video image data (11). A license plate extracting device (4) is provided to produce a digital multivalue image data (41) corresponding to an area in which the license plate occupies. A literal region extracting device (5) extracts a literal positional region of a letter sequence of the license plate based on the image obtained from the license plate extracting device (4). A literal recognition device (6) is provided to recognize a letter from a literal image (571) of the literal positional region obtained from the literal region extracting device (5). An image emphasis device is provided to emphasize the literal image (571) of the literal positional region by replacing a part of the literal region extracting device (5) with a filter net which serves as a neural network.
    • 在用于机动车辆的车牌信息读取装置(A)中,提供CCD摄像机(1),以产生涉及通过拍摄机动车辆的前部和后部获得的车牌的视频图像数据(11)。 A / D转换器(3)通过对视频图像数据(11)进行A / D转换来产生数字多值图像数据(31)。 提供牌照提取装置(4)以产生对应于车牌所占据的区域的数字多值图像数据(41)。 文字区域提取装置(5)基于从车牌提取装置(4)获得的图像,提取车牌的字母序列的文字位置区域。 提供文字识别装置(6)以识别从文字区域提取装置(5)获得的文字位置区域的文字图像(571)中的字母。 提供一种图像强调装置,通过用作为神经网络的滤波器网来替换文字区域提取装置(5)的一部分来强调文字位置区域的文字图像(571)。
    • 2. 发明授权
    • Positional detector device for a vehicular license plate
    • 用于车牌的位置检测装置
    • US06281928B1
    • 2001-08-28
    • US09076791
    • 1998-05-13
    • Taizo UmezakiTakeo KanadeNoriyuki Matsumoto
    • Taizo UmezakiTakeo KanadeNoriyuki Matsumoto
    • H04N718
    • G06T7/11G06T7/73G06T2207/10016G06T2207/30252
    • In a positional detector device for a license plate of a motor vehicle, a camera is provided to photograph a front and rear portion of a motor vehicle so as to produce an image signal. An A/D converter converts the image signal into a digital image. A positional detector detects a position of a lisence plate of a motor vehicle based on the digital image. A cut-off treatment device cuts off a specified region from an original image photographed by the camera while scanning the original image when the motor vehicle approaches the camera member within a predetermined distance. An edge refining treatment device emphasizes a contour of a pattern represented by the specified region cut off from the original image. A contraction treatment device contracts an image size of the specified region which was treated with the edge refining treatment device. A calculation treatment device feeds the contracted pattern to a learned neural network so as to calculate an output value for a positional detection neural network. A coordinate transformation device transforms the output value of the positional detection neural network to such a scale as to meet the original image. An addition treatment device adds data at specified points which were multiplied by Gaussian window so as to obtain a projective addition value after carrying out the coordinate transformation. A distinction treatment device recognizes a position of the license plate based on a maximum value on which the projective addition value falls.
    • 在机动车辆的车牌的位置检测装置中,设置摄像机拍摄机动车辆的前后部,以产生图像信号。 A / D转换器将图像信号转换成数字图像。 位置检测器基于数字图像检测机动车辆的液晶板的位置。 当机动车辆在预定距离内接近照相机构件时,截止处理装置从照相机拍摄的原始图像切断指定区域,同时扫描原始图像。 边缘精炼处理装置强调由原始图像切断的指定区域表示的图案的轮廓。 收缩处理装置收缩用边缘精炼处理装置处理的指定区域的图像尺寸。 计算处理装置将收缩模式馈送到学习神经网络,以计算位置检测神经网络的输出值。 坐标变换装置将位置检测神经网络的输出值变换为满足原始图像的等级。 加法处理装置在与高斯窗乘以的指定点添加数据,以便在进行坐标变换之后获得投影加法值。 鉴别处理装置基于投射附加值下降的最大值识别牌照的位置。
    • 3. 发明授权
    • Fingerprint scanning device for use in identification
    • 指纹扫描装置用于识别
    • US5426708A
    • 1995-06-20
    • US74490
    • 1993-06-11
    • Toshio HamadaTaizo Umezaki
    • Toshio HamadaTaizo Umezaki
    • G06T1/00G06K9/00G06T7/00G07C9/00G06K9/74
    • G06K9/00067G07C9/00087
    • In a fingerprint scanning device for use in identification, a fingerprint image input device is provided to photoelectronically input a specified fingerprint of an entrant. A monochrome image data of the ridge pattern of the entrant fingerprint is stored as fingerprint image data. A feature extraction device has a calculator which treats the ridge pattern image with one-dimensional group-delay spectrum transform in X- and Y-directions. The feature extraction device has the characteristic of isolating and emphasizing peaks of the individual frequency spectra in the form of differential with respect to a phase component frequency in Fourier transform analysis, and determining group-delay spectra in X- and Y-direction respectively as fingerprint feature portions. A distinction device is provided to collate the entrant feature portion with a registrant feature portion which is registered by the fingerprint image input means so as to identify the entrant with the registrant when X-oriented and Y-oriented group-delay spectra are recognized as being the same between the entrant and the registrant by calculating whether Euclidean distances fall short of a predetermined threshold limit upon collating the individual ridge pattern image.
    • 在用于识别的指纹扫描装置中,提供指纹图像输入装置以光电子地输入进入者的指定指纹。 进入指纹的脊图案的单色图像数据被存储为指纹图像数据。 特征提取装置具有计算器,其在X和Y方向上用一维组延迟频谱变换处理脊图图像。 特征提取装置具有在傅里叶变换分析中相对于相位分量频率以差分形式分离和强调各个频谱的峰值的特性,并且分别在X和Y方向上确定组延迟谱作为指纹 特征部分。 提供了一种区分装置,用于将参与者特征部分与由指纹图像输入装置登记的注册者特征部分进行核对,以便当X取向和Y取向组延迟光谱被识别为是时识别具有注册者的参与者 通过计算在整理单个脊图案图像时欧氏距离是否落在预定阈值下限之间,在进入者和注册者之间相同。
    • 5. 发明授权
    • Image emphasizing device for fingerprint verification
    • 图像强调设备,用于指纹验证
    • US06718052B1
    • 2004-04-06
    • US09521943
    • 2000-03-09
    • Noriyuki MatsumotoTaizo UmezakiAkihito Kimura
    • Noriyuki MatsumotoTaizo UmezakiAkihito Kimura
    • G06K900
    • G06K9/00067G06T5/003G06T5/10G06T2207/20056G06T2207/20192
    • A minute amplitude value emphasis device 2 has Fourier transformation devices 211, 212 which treat a two-dimensional original pictorial image 200 with a Fourier transformation to determine Fourier coefficients in x-axis and y-axis directions. Weight devices 221, 222 emphasize the respective Fourier coefficients in the corresponding directions so as to produce weighted Fourier coefficients. Inverse Fourier transformation devices 231, 232 treat the weighted Fourier coefficients with an inverse Fourier transformation in two directions to determine the corresponding minute amplitude value emphasis data 241, 242. A synthesizing device 250 synthesizes the corresponding minute amplitude value emphasis data 241, 242 to produce a minute amplitude value emphasis image 260. An obscure portion of the two-dimensional original pictorial image 200 is rectified to reproduce a clarified pictorial image.
    • 微小振幅值强调装置2具有傅立叶变换装置211,212,其利用傅里叶变换处理二维原始图形图像200,以确定x轴方向和y轴方向的傅里叶系数。 加权设备221,222强调相应方向上的相应傅里叶系数,以产生加权傅里叶系数。 逆傅里叶变换装置231,232在两个方向上用傅立叶逆变换处理加权傅立叶系数,以确定对应的微小振幅值强调数据241,224。合成装置250合成对应的微小振幅值强调数据241,242,以产生 微小的振幅值加重图像260.二维原始图形图像200的模糊部分被整流以再现澄清的图形图像。
    • 7. 发明授权
    • Fingerprint verification apparatus, fingerprint verification method and a fingerprint verification program
    • 指纹验证装置,指纹验证方法和指纹验证程序
    • US07310433B2
    • 2007-12-18
    • US10297298
    • 2001-07-11
    • Taizo UmezakiKenji MiyoshinoTatsuhiko SugimotoToshio Ishizaka
    • Taizo UmezakiKenji MiyoshinoTatsuhiko SugimotoToshio Ishizaka
    • G06K9/00
    • G06K9/00006
    • An overlapped portion of a plurality of partial images of a fingerprint that are input from a fingerprint input device (7) is corrected to be reconfigured at a reconfiguration process section (106). The characteristics are extracted from the input partial images at the fingerprint characteristic information extracting section (110) and the extracted characteristic information is stored in an input characteristic information memory. A verification process section executes DP comparison (dynamic programming method) between the characteristic information stored in the input characteristic information memory and the characteristic information stored in the registered characteristic information memory. The distance value obtained by the DP comparison is compared to a threshold that is previously set. If the distance value is smaller than the threshold, it is judged the fingerprint is identified and if the distance value is larger than the threshold, it is judged that the fingerprint is not identified.
    • 校正从指纹输入装置(7)输入的指纹的多个部分图像的重叠部分,以便在重新配置处理部分(106)重新配置。 从指纹特征信息提取部(110)的输入部分图像提取特征,并将所提取的特征信息存储在输入特征信息存储器中。 验证处理部分执行存储在输入特征信息存储器中的特征信息与存储在注册特征信息存储器中的特征信息之间的DP比较(动态编程方法)。 将通过DP比较获得的距离值与预先设定的阈值进行比较。 如果距离值小于阈值,则判断为指纹被识别,并且如果距离值大于阈值,则判断为未识别出指纹。
    • 8. 发明授权
    • Hybrid biometric authentication device, hybrid biometric authentication method, and computer-readable medium storing hybrid biometric authentication program
    • 混合生物认证装置,混合生物认证方法和存储混合生物特征认证程序的计算机可读介质
    • US08369583B2
    • 2013-02-05
    • US12838930
    • 2010-07-19
    • Tatsuki YoshimineMasaaki MatsuoMasahiro HoguroTaizo Umezaki
    • Tatsuki YoshimineMasaaki MatsuoMasahiro HoguroTaizo Umezaki
    • G06K9/00G06K9/34
    • G06K9/00067G06K9/00892
    • A hybrid biometric authentication device that includes a plurality of feature extraction portions that respectively extract, from biometric information, a plurality of types of feature information that have mutually distinct properties, a feature combining portion that generates hybrid feature information by combining the plurality of types of feature information, a feature information storage portion that stores the hybrid feature information, a plurality of similarity computation portions that separates each of new information and registered information into the plurality of types of feature information, and compute a plurality of degrees of similarity between separate sets of a same type of the feature information, and a determination portion that, based on the plurality of degrees of similarity, determines whether the biometric information on which the new information is based and the biometric information on which the registered information is based have been acquired from a same person.
    • 一种混合式生物认证装置,其特征在于,具有从生物体信息分别提取具有相互不同特性的多种特征信息的多个特征提取部,通过组合多种类型的特征提取部, 特征信息,存储混合特征信息的特征信息存储部分,将新信息和登记信息分离成多种类型的特征信息的多个相似度计算部分,并且计算分离集合之间的多个相似程度 具有相同类型的特征信息的确定部分,以及确定部分,其基于所述多个相似度来确定已经获取了所述新信息所基于的生物特征信息和所述登记信息所基于的生物特征信息 从同一个 人。
    • 10. 发明授权
    • Fingerprint verification device and fingerprint verification method
    • 指纹验证装置和指纹验证方法
    • US07133542B2
    • 2006-11-07
    • US10381514
    • 2001-09-28
    • Hideyo TakeuchiTaizo Umezaki
    • Hideyo TakeuchiTaizo Umezaki
    • G06K9/00
    • G06K9/00006G06K9/00067G06K9/00087
    • The present invention provides technologies for narrowing down fingerprints images, which will be used for identity determination, without extracting auxiliary information such as a fingerprint pattern, thereby shortening the time required for fingerprint verification. The device according to the present invention includes a storage means 26 for storing characteristic information extracted from fingerprint images of registered persons, and a collection means 10 for collecting a fingerprint image. First, a extraction means 14 extracts characteristic information from the fingerprint image collected by the collection means 10. Next, a narrowing means 16 calculates a similarity between part of the characteristic information of the person to be identified, which was extracted by the extraction means 14, and corresponding part of the characteristic information of each of the registered persons, which is stored in the storage means 26. Based upon the calculated similarity, the registered fingerprints that will be used for the identity determination are narrowed down. Then, an determination means 18 determines whether or not the characteristic information of each of the registered fingerprints, which were narrowed down by the narrowing means 16, matches the characteristic information of the person to be identified, which was extracted by the extraction means 14. According to this device, the registered fingerprints that will be used for the identity determination are narrowed down by using the characteristic information that will be used for the identity determination. Therefore, without extracting auxiliary information, such as a fingerprint pattern, from the collected fingerprint image, the fingerprint images that will be used in order to determine the identity of the fingerprint are narrowed down. Thus, the time required for the fingerprint verification can be shortened.
    • 本发明提供了用于缩小指纹图像的技术,其将用于身份确定,而不提取诸如指纹图案的辅助信息,从而缩短指纹验证所需的时间。 根据本发明的装置包括:存储装置26,用于存储从登记人员的指纹图像中提取的特征信息;以及收集装置10,用于收集指纹图像。 首先,提取装置14从由收集装置10收集的指纹图像中提取特征信息。 接下来,缩小装置16计算由提取装置14提取的要识别的人的特征信息的一部分与存储在所述提取装置14中的每个注册人的特征信息的对应部分之间的相似度。 存储装置26。 基于计算的相似度,将用于身份确定的登记指纹变窄。 然后,确定装置18确定由缩小装置16缩小的每个登记指纹的特征信息是否与由提取装置14提取的要识别的人的特征信息相匹配。 根据该装置,通过使用将用于身份确定的特征信息,将用于身份确定的登记指纹缩小。 因此,在从所收集的指纹图像中提取诸如指纹图案的辅助信息之前,为了确定指纹的身份而使用的指纹图像将被缩小。 因此,可以缩短指纹验证所需的时间。