公开(公告)号：EP3164695A1

公开(公告)日：2017-05-10

申请号：EP15734626.3

申请日：2015-06-30

申请人： Trumpf Werkzeugmaschinen GmbH + Co. KG

发明人： HALLASCH, Dieter ,  HESSE, Tim ,  REGAARD, Boris ,  SCHINDHELM, David

IPC分类号： G01N21/55 ,  B23K26/00 ,  B23K26/03 ,  B23K26/20 ,  B23K26/32 ,  G06T7/00 ,  G01N33/20 ,  G01B11/30 ,  G01N21/86 ,  G01N21/84 ,  G01N21/89

CPC分类号： G06T7/001 ,  B23K26/032 ,  B23K26/14 ,  B23K26/24 ,  B23K26/32 ,  B23K26/38 ,  B23K26/40 ,  B23K26/60 ,  B23K26/702 ,  G01B11/303 ,  G01N21/55 ,  G01N21/86 ,  G01N33/20 ,  G01N2021/8416 ,  G01N2021/8918 ,  G01N2201/12 ,  G06K9/4661 ,  G06K9/748 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30164

摘要： The invention relates to a method for determining a material type and/or surface characteristics of a preferably metallic, particularly planar workpiece (4), comprising the steps of: illuminating a surface (8) of said workpiece (4) using illuminating radiation (17), taking at least one image of the illuminated surface (8), and determining the material type and/or surface characteristics of said workpiece (4) on the basis of the at least one image converted to the spatial frequency domain. The invention also relates to an associated device (1) and to a computer program product.

摘要翻译： 本公开涉及的方法和用于确定性采矿装置的材料类型和/或工件的表面状态。 工件的表面与照明辐射照明。 被照射面中的至少一个图像被记录。 材料类型和/或所述工件的表面状态确定性开采转换成空间频域的所述至少一个图像的统计分析的基础上。

公开(公告)号：EP2107498A3

公开(公告)日：2010-05-26

申请号：EP09008873.3

申请日：2000-08-08

申请人： PHYSICAL OPTICS CORPORATION

发明人： Kostrzewski, Andrew A. ,  Savant, Gajendra D. ,  Jannson, Tomasz P. ,  Jannson, Joanna L.

IPC分类号： G06K9/00 ,  G06E3/00

CPC分类号： G06K9/745 ,  G06E3/001 ,  G06K9/748 ,  G06K19/086

摘要： An authentication system using a correlator that correlates an input (84) with a reference (88) wherein at least one of the input and reference comprises a phase volume mask having structures that are each less than about six microns in size and can have an aspect ratio (AR) greater than 1:1 so as to produce a phase encoded random pattern having millions of combinations in a mask that is as small as one square millimeter. The random pattern can be convolved with a second pattern, such as a biometric pattern, to produce a phase convolved mask. The correlator (82) preferably is a nonlinear joint transform correlator that can use "chirp" encoding. The correlator optically Fourier transforms (98) images of the reference and input that are thereafter nonlinearly transformed and inverse Fourier transformed by a processor (104) to determine authenticity (106, 110). A spatial light modulator (SLM) can be used as an input or reference.

公开(公告)号：EP0403305A2

公开(公告)日：1990-12-19

申请号：EP90306569.6

申请日：1990-06-15

申请人： SEIKO INSTRUMENTS INC.

发明人： Iwaki, Tadao ,  Mitusoka, Yasuoyuki

IPC分类号： G06K9/74

CPC分类号： G06K9/748 ,  G06E3/005

摘要： An optical pattern recognition apparatus comprising means (1, 2, 3, 5) employing coherent light for converting at least one reference image and at least one input image into a joint coherent image, means (6) for transforming the joint coherent image to produce a Fourier transform image of the at least one reference image and the at least one input image, means (7) for providing an intensity distribution recording on the basis of the Fourier transform image, means (8, 9, 10, 14, 15) responsive to the intensity distribution recording for supplying correlation information for determining a correlation between the at least one reference image and the at least one input image, and characterised by means (4, 12, 13) operable in response to the supplied correlation information for varying the intensity of a coherent light beam applied in the converting means to the at least one reference image whereby to effect correction of the correlation information.

摘要翻译： 一种光学图案识别装置，包括使用相干光将至少一个参考图像和至少一个输入图像转换为联合相干图像的装置（1,2,3,5），用于变换联合相干图像以产生 所述至少一个参考图像和所述至少一个输入图像的傅里叶变换图像，用于基于所述傅立叶变换图像提供强度分布记录的装置（7），所述装置（8,9,10,14,15） 响应于所述强度分布记录，用于提供用于确定所述至少一个参考图像和所述至少一个输入图像之间的相关性的相关信息，并且其特征在于可响应于所提供的相关信息而变化的装置（4,12,13） 将在转换装置中施加的相干光束的强度提供给至少一个参考图像，从而实现相关信息的校正。

公开(公告)号：EP2107498A2

公开(公告)日：2009-10-07

申请号：EP09008873.3

申请日：2000-08-08

申请人： PHYSICAL OPTICS CORPORATION

发明人： Kostrzewski, Andrew A. ,  Savant, Gajendra D. ,  Jannson, Tomasz P. ,  Jannson, Joanna L.

IPC分类号： G06K9/00 ,  G06E3/00

CPC分类号： G06K9/745 ,  G06E3/001 ,  G06K9/748 ,  G06K19/086

摘要： An authentication system using a correlator that correlates an input (84) with a reference (88) wherein at least one of the input and reference comprises a phase volume mask having structures that are each less than about six microns in size and can have an aspect ratio (AR) greater than 1:1 so as to produce a phase encoded random pattern having millions of combinations in a mask that is as small as one square millimeter. The random pattern can be convolved with a second pattern, such as a biometric pattern, to produce a phase convolved mask. The correlator (82) preferably is a nonlinear joint transform correlator that can use "chirp" encoding. The correlator optically Fourier transforms (98) images of the reference and input that are thereafter nonlinearly transformed and inverse Fourier transformed by a processor (104) to determine authenticity (106, 110). A spatial light modulator (SLM) can be used as an input or reference.

摘要翻译： 一种使用将输入（84）与参考（88）相关联的相关器的认证系统，其中输入和参考中的至少一个包括相位体积掩模，该相位体积掩模具有每个尺寸小于约6微米的结构并且可以具有方面 比率（AR）大于1：1，以便产生具有数百万个组合的相位编码随机图案，该掩模小到一平方毫米。 随机模式可以与第二模式（例如生物模式）卷积以产生相位卷积掩模。 相关器（82）优选地是可以使用“啁啾”编码的非线性联合变换相关器。 相关器光学傅立叶变换参考和输入的（98）图像，其随后被处理器（104）进行非线性变换和逆傅立叶变换以确定真实性（106,110）。 空间光调制器（SLM）可以用作输入或参考。

公开(公告)号：EP1218850A1

公开(公告)日：2002-07-03

申请号：EP00953932.1

申请日：2000-08-08

申请人： PHYSICAL OPTICS CORPORATION

发明人： KOSTRZEWSKI, Andrew, A. ,  SAVANT, Gajendra, D. ,  JANNSON, Tomasz, P. ,  JANNSON, Joanna, L.

IPC分类号： G06K9/00

CPC分类号： G06K9/745 ,  G06E3/001 ,  G06K9/748 ,  G06K19/086

摘要： An authentication system using a correlator that correlates an input (84) with a reference (88) wherein at least one of the input and reference comprises a phase volume mask having structures that are each less than about six microns in size and can have an aspect ratio (AR) greater than 1:1 so as to produce a phase encoded random pattern having millions of combinations in a mask that is as small as one square millimeter. The random pattern can be convolved with a second pattern, such as a biometric pattern, to produce a phase convolved mask. The correlator (82) preferably is a nonlinear joint transform correlator that can use 'chirp' encoding. The correlator optically Fourier transforms (98) images of the reference and input that are thereafter nonlinearly transformed and inverse Fourier transformed by a processor (104) to determine authenticity (106, 110). A spatial light modulator (SLM) can be used as an input or reference.

公开(公告)号：EP0403305B1

公开(公告)日：1996-09-18

申请号：EP90306569.6

申请日：1990-06-15

申请人： SEIKO INSTRUMENTS INC.

发明人： Iwaki, Tadao ,  Mitusoka, Yasuoyuki

IPC分类号： G06K9/74

CPC分类号： G06K9/748 ,  G06E3/005

公开(公告)号：EP0475659A2

公开(公告)日：1992-03-18

申请号：EP91308052.9

申请日：1991-09-03

申请人： SEIKO INSTRUMENTS INC.

发明人： Mitsuoka, Yasuyuki ,  Iwaki, Tadao ,  Yoshikawa, Tomohiro

IPC分类号： G06K9/74

CPC分类号： G06K9/748 ,  G06E3/005

摘要： The present invention provides optical pattern recognition apparatus comprising means for generating a coherent image of a joint input image (3) including a plurality of reference images R i and a signal image S by applying a coherent light beam (1) to the joint input image. Fourier transform means (4) are provided for transforming the coherent image into a joint Fourier transform image, which is then converted by a spatial light modulator (5) into a light intensity distribution. Means (8, 9) are also provided for determining a correlation coefficient between each of the reference images and the signal image based on the light intensity distribution. Feed-back means (2, 11) respond to an output from the correlation coefficient determining means for adjusting the intensity of light applied to the joint input image for generating the coherent image.

摘要翻译： 本发明提供光学图案识别装置，其包括用于通过将相干光束（1）施加到关节输入图像来生成包括多个参考图像Ri和信号图像S的联合输入图像（3）的相干图像的装置。 提供傅立叶变换装置（4），用于将相干图像变换成联合傅里叶变换图像，然后将其由空间光调制器（5）转换成光强度分布。 还提供了用于基于光强度分布来确定每个参考图像和信号图像之间的相关系数的装置（8,9）。 反馈装置（2,11）响应来自相关系数确定装置的输出，用于调整施加到联合输入图像的光的强度以产生相干图像。

公开(公告)号：EP2601785A2

公开(公告)日：2013-06-12

申请号：EP11815246.1

申请日：2011-08-03

申请人： Cornell University

发明人： MOLNAR, Alyosha ,  WANG, Albert ,  GILL, Patrick

IPC分类号： H04N5/374 ,  H04N5/225

CPC分类号： H04N13/111 ,  G06K9/748 ,  G06T1/0007 ,  G06T2200/24 ,  H01L27/14605 ,  H01L27/14607 ,  H01L27/14629 ,  H04N5/374 ,  H04N19/14 ,  H04N19/63

摘要： An image processing system includes at least two, complementary, angle sensitive pixel (ASP) structures, having a spatial frequency domain ASP output including a background output and a plurality of ASP response outputs, in response to an optical input; an ASP response output subtractor component, which functions to suppress the background output and perform a subtraction of at least two of the ASP response outputs; and a processing component that can process the subtracted spatial frequency domain ASP response outputs. An optical domain image processing method includes the steps of providing at least two, complementary, angle sensitive pixel (ASP) structures; obtaining a spatial frequency domain ASP output including a plurality of complementary ASP response outputs, in response to an optical input; performing a wavelet-like transform of the ASP response outputs in the optical domain prior to performing any operation in a digital domain; and obtaining a desired output of the optical input.

公开(公告)号：EP1183647A1

公开(公告)日：2002-03-06

申请号：EP00936205.4

申请日：2000-05-23

申请人： Look Dynamics, Inc.

发明人： CRILL, Rikk ,  BRUCE, David ,  SCHEHRER, Kevin

IPC分类号： G06T7/00

CPC分类号： G06K9/748 ,  G06F17/30247 ,  G06K9/522 ,  G06K9/58 ,  G06T7/00

摘要： A method for searching for and comparing images includes allowing a user, software application, computer system, etc., to create, identify, select, provide, or otherwise produce one or more reference images that the user, software application, computer system, etc., wants to search for, retrieving or providing one or more candidate images that are to be compared to the reference images by optical correlation, comparing one or more of the candidate images with one or more of the reference images, and indicating the results of the comparisons and the degree of correlation or matching between one or more of the candidate images and one or more of the reference images.

公开(公告)号：EP0516106A2

公开(公告)日：1992-12-02

申请号：EP92108985.0

申请日：1992-05-27

申请人： SEIKO INSTRUMENTS INC. ,  SUMITOMO CEMENT CO. LTD.

发明人： Mitsuoka, Yasuyuki ,  Iwaki, Tadao

IPC分类号： G06K9/74

CPC分类号： G06K9/748 ,  G06E3/005

摘要： This invention is intended to enable accurate and high-speed pattern recognition even when an object to be identified changes its size, rotating angle or position.
The invention comprises:
   an optical coordinate convertor for displaying at least one reference image including specified marks and at least one input image to be entered on an electrically addressed spatial light modulator 3 for object image and then converting the displayed images from one coordinate system to a desired coordinate system to produce coordinate-converted images by using the coordinate conversion optical filter array 44 and the coordinate conversion lens array 47 ; and
   a joint transform correlator for displaying the coordinate-converted intensity distribution images, produced by the optical coordinate convertor, on the coordinate conversion light-addressed spatial light modulator 13 , Fourier-transforming the coordinate-converted intensity distribution images into Fourier-transformed intensity distribution images, displaying the Fourier-transformed intensity distribution images on the Fourier transform light-addressed spatial light modulator 105 , and Fourier-transforming again the Fourier-transformed intensity distribution image to determine the correlation coefficients of the coordinate-converted reference image and the coordinate-converted input image.
With this construction, it is possible to change the reference image and the kind of coordinate conversion easily and quickly.

摘要翻译： 本发明旨在即使当要识别的对象改变其大小，旋转角度或位置时，也能够进行精确和高速模式识别。 本发明包括：光学坐标转换器，用于显示包括指定标记的至少一个参考图像和要输入到用于对象图像的电寻址空间光调制器3上的至少一个输入图像，然后将所显示的图像从一个坐标系转换为 通过使用坐标转换光学滤光器阵列44和坐标转换透镜阵列47来产生坐标转换图像的所需坐标系; 以及联合变换相关器，用于在坐标变换光寻址空间光调制器13上显示由坐标变换光学坐标变换器产生的坐标转换强度分布图像，将坐标变换后的强度分布图像傅里叶变换为傅里叶变换强度分布 在傅立叶变换光寻址空间光调制器105上显示傅里叶变换后的强度分布图像，并再次傅利叶变换傅立叶变换强度分布图像，以确定坐标变换参考图像和坐标转换参考图像的相关系数， 转换输入图像。 利用这种结构，可以容易且快速地改变参考图像和坐标转换的种类。