公开(公告)号：US08896849B2

公开(公告)日：2014-11-25

申请号：US13511707

申请日：2010-12-09

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G01B11/22 ,  G06T7/00 ,  G01P5/00

CPC分类号： G06T7/0065 ,  G01P5/001 ,  G06T7/55 ,  G06T7/80 ,  G06T2207/10028

摘要： The invention relates to a method for determining a set of optical imaging functions that describe the imaging of a measuring volume onto each of a plurality of detector surfaces on which the measuring volume can be imaged at in each case a different observation angle by means of detection optics. In addition to the assignment of in each case one image position (x, y) to each volume position (X, Y, Z), the method according to the invention envisages that the shape of the image of a punctiform particle in the measuring volume be described by shape parameter values (a, b, 100 , I) and that the corresponding set of shape parameter values be assigned to each volume position (X, Y. Z) for each detector surface.

摘要翻译： 本发明涉及一种用于确定一组光学成像功能的方法，其描述了在多个检测器表面中的每一个上的测量体积的成像，其中可以通过检测在每个检测器表面上测量测量体积，而不同的观察角度 光学。 除了在每种情况下分配一个图像位置（x，y）到每个体积位置（X，Y，Z）之外，根据本发明的方法设想在测量体积中的点状颗粒的图像的形状 由形状参数值（a，b，100，I）描述，并且相应的形状参数值集合被分配给每个检测器表面的每个体积位置（X，Y.Z）。

公开(公告)号：US20120274746A1

公开(公告)日：2012-11-01

申请号：US13511707

申请日：2010-12-09

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： H04N5/225 ,  H04N13/02

CPC分类号： G06T7/0065 ,  G01P5/001 ,  G06T7/55 ,  G06T7/80 ,  G06T2207/10028

摘要： The invention relates to a method for determining a set of optical imaging functions that describe the imaging of a measuring volume onto each of a plurality of detector surfaces on which the measuring volume can be imaged at in each case a different observation angle by means of detection optics. In addition to the assignment of in each case one image position (x, y) to each volume position (X, Y, Z), the method according to the invention envisages that the shape of the image of a punctiform particle in the measuring volume be described by shape parameter values (a, b, 100 , I) and that the corresponding set of shape parameter values be assigned to each volume position (X, Y. Z) for each detector surface.

摘要翻译： 本发明涉及一种用于确定一组光学成像功能的方法，其描述了在多个检测器表面中的每一个上的测量体积的成像，其中可以通过检测在每个检测器表面上测量测量体积，而不同的观察角度 光学。 除了在每种情况下分配一个图像位置（x，y）到每个体积位置（X，Y，Z）之外，根据本发明的方法设想在测量体积中的点状颗粒的图像的形状 由形状参数值（a，b，100，I）描述，并且相应的形状参数值集合被分配给每个检测器表面的每个体积位置（X，Y.Z）。

公开(公告)号：US08120755B2

公开(公告)日：2012-02-21

申请号：US11904433

申请日：2007-09-27

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G01B11/26

CPC分类号： G01P5/001 ,  G06T7/80

摘要： The subject matter of the invention is a method of correcting a volume imaging equation for more accurate determination of a velocity field of particles in a volume, said volume being captured from different directions by at least two cameras, a coarse calibration of the position of the cameras relative to each other and relative to the volume of concern being carried out first by determining an imaging equation that associates with the coordinates (X, Y, Z) of a point in the volume the corresponding camera picture coordinates xi, yi of each camera i, all the cameras then capturing simultaneously in the same unchanged position particles in a volume, the position (X, Y, Z) of a particle in the volume being approximated by means of a known triangulation method using the calculated position xi, yi of a particle in the camera pictures, this position (X, Y, Z) being imaged through the original imaging equation onto a position xi′, yi′ in the camera images of the at least two cameras, a correction factor for the imaging equation being calculated from the difference (dxi, dyi) between the coordinates (xi, yi) and (xi′, yi′) so that, thanks to the amended imaging equation, the point (xi, yi) becomes identical with the point (xi′, yi′) for all the cameras i, this correction occurring for many particles in the volume.

摘要翻译： 本发明的主题是一种校正体积成像方程的方法，用于更准确地确定体积中的颗粒的速度场，所述体积通过至少两个照相机从不同方向捕获，粗略校准 首先通过确定与每个相机的对应的相机图像坐标xi，yi的体积中的点的坐标（X，Y，Z）相关联的成像方程，首先相对于相对于相对于所执行的关注体积的相机， 我所有的摄像机然后同时在一个体积上同样不变的位置捕获颗粒，体积中的颗粒的位置（X，Y，Z）通过已知的三角测量方法近似，使用计算出的位置xi，yi 相机图像中的粒子，该位置（X，Y，Z）通过原始成像方程成像到至少两个相机的相机图像中的位置xi'，yi'，a 根据坐标（xi，yi）和（xi'，yi'）之间的差（dxi，dyi）计算成像方程的校正因子，使得由于修正的成像方程，点（xi，yi）变为 与所有摄像机i的点（xi'，yi'）相同，该校正针对体积中的许多粒子发生。

公开(公告)号：US07382900B2

公开(公告)日：2008-06-03

申请号：US10936398

申请日：2004-09-08

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G06K9/00

CPC分类号： G01P5/22 ,  G01P5/001 ,  G06T7/285

摘要： A method of determining a three-dimensional velocity field in a volume having particles, the particles within the volume being excited to radiate by illuminating the volume, including two or more cameras simultaneously capturing images of the observation volume at two different instants of time, the observation volume being divided into small volume elements (voxels), each voxel being projected onto image points of the cameras, the intensity of all the voxels being reconstructed from the measured intensity of the respective associated image points, a plurality of voxels being combined to form an interrogation volume, and a displacement vector being determined by a three-dimensional cross correlation of the two interrogation volumes.

摘要翻译： 一种确定具有颗粒的体积中的三维速度场的方法，通过照射该体积来激发体积内的颗粒，包括两个或更多个相机同时在两个不同时刻捕获观察体积的图像， 观察体积被分为小体积元素（体素），每个体素被投影到照相机的图像点上，所有体素的强度根据各个相关联图像点的测量强度重建，多个体素组合形成 询问体积和位移矢量由两个询问体积的三维互相关来确定。

公开(公告)号：US09644948B2

公开(公告)日：2017-05-09

申请号：US12668462

申请日：2008-07-01

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G06K9/00 ,  G01B11/16

CPC分类号： G01B11/16

摘要： The invention relates to a method for the contact-free measurement of deformations of a surface of a object in which a series of individual images is captured in each of two time windows (T1, T2), wherein between every two individual image captures the image detector is displaced relative to the object and parallel to its detector surface by an optical offset of the size of a fraction of a pixel up to a few pixels, the individual images of the first time window (T1) are processed in pairs with the individual images of the second time window (T2) to produce a set of individual deformation fields (18) and an average of the individual deformation fields (18) is calculated as an output deformation field (20).

公开(公告)号：US20100183191A1

公开(公告)日：2010-07-22

申请号：US12668462

申请日：2008-07-01

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G06K9/00

CPC分类号： G01B11/16

摘要： The invention relates to a method for the contact-free measurement of deformations of a surface of a object in which a series of individual images is captured in each of two time windows (T1, T2), wherein between every two individual image captures the image detector is displaced relative to the object and parallel to its detector surface by an optical offset of the size of a fraction of a pixel up to a few pixels, the individual images of the first time window (T1) are processed in pairs with the individual images of the second time window (T2) to produce a set of individual deformation fields (18) and an average of the individual deformation fields (18) is calculated as an output deformation field (20).

摘要翻译： 本发明涉及一种用于无接触地测量物体表面变形的方法，其中在两个时间窗口（T1，T2）中的每一个中捕获一系列单独的图像，其中在每两个单独的图像之间拍摄图像 检测器相对于物体移位，并且通过像素的一小部分的大小的光学偏移直到几个像素平行于其检测器表面，第一时间窗口（T1）的各个图像与个体成对地处理 计算第二时间窗（T2）的图像以产生一组单独的变形场（18），并且计算各个变形场（18）的平均值作为输出变形场（20）。

公开(公告)号：US20080123939A1

公开(公告)日：2008-05-29

申请号：US11904433

申请日：2007-09-27

申请人： Bernhard Wieneke

发明人： Bernhard Wieneke

IPC分类号： G06K9/00

CPC分类号： G01P5/001 ,  G06T7/80

摘要： The subject matter of the invention is a method of correcting a volume imaging equation for more accurate determination of a velocity field of particles in a volume, said volume being captured from different directions by at least two cameras, a coarse calibration of the position of the cameras relative to each other and relative to the volume of concern being carried out first by determining an imaging equation that associates with the coordinates (X, Y, Z) of a point in the volume the corresponding camera picture coordinates xi, yi of each camera i, all the cameras then capturing simultaneously in the same unchanged position particles in a volume, the position (X, Y, Z) of a particle in the volume being approximated by means of a known triangulation method using the calculated position xi, yi of a particle in the camera pictures, this position (X, Y, Z) being imaged through the original imaging equation onto a position xi′, yi′ in the camera images of the at least two cameras, a correction factor for the imaging equation being calculated from the difference (dxi, dyi) between the coordinates (xi, yi) and (xi′, yi′) so that, thanks to the amended imaging equation, the point (xi, yi) becomes identical with the point (xi′, yi′) for all the cameras i, this correction occurring for many particles in the volume.

摘要翻译： 本发明的主题是一种校正体积成像方程的方法，用于更准确地确定体积中的颗粒的速度场，所述体积通过至少两个照相机从不同方向捕获，粗略校准 摄像机相对于彼此并且相对于首先执行的关注体积，通过确定与相应的摄像机图像坐标x 1的体积中的点的坐标（X，Y，Z）相关联的成像方程， 每个摄像机i的所有摄像机然后在相同的不变位置捕获体积中的粒子，所述摄像机的粒子的位置（X，Y，Z）为 通过已知的三角测量方法近似，使用摄像机图像中的粒子的计算位置x i，y i，i i，该位置（X，Y，Z）被成像 通过原始成像方程到位置x ，y _{，i> ）和（x，i，i，i）之间的坐标（x，i，i，i） 由于修正的成像方程，点（x，i，i，i）变得与点（x，i，y）相同， 对于所有摄像机i，对于体积中的许多颗粒而言，这种校正发生。}