公开(公告)号：US5957049A

公开(公告)日：1999-09-28

申请号：US186858

申请日：1998-11-05

申请人： Harald Ammeter ,  Hans Ott ,  Nikolaus Pfeiffer ,  Manfred Schneider

发明人： Harald Ammeter ,  Hans Ott ,  Nikolaus Pfeiffer ,  Manfred Schneider

IPC分类号： B41F31/02 ,  B41F33/00 ,  G01J3/46 ,  B41F31/00

CPC分类号： B41F33/0045

摘要： In order to control ink application in a printing press, a sheet (3) printed by the printing press (1) is colorimetrically measured in a number of pixels (4) with respect to a selected color coordinate system that has been expanded to be four-dimensional by also taking into account an infrared component. Color difference vectors with respect to the desired color vectors, predefined or determined from a reference sheet (3) and referred to the same color coordinate system, are computed from the color vectors obtained for each pixel (4). A sensitivity matrix is determined for each measured pixel (4) of the sheet (3). The pixels (4) are classified by sensitivity class. The color difference vectors and sensitivity matrices of the pixels (4) pertaining to the same sensitivity class are averaged for each sensitivity class, and input parameters, in particular film thickness modification vectors, are computed from the averaged color difference vectors and averaged sensitivity matrices of all sensitivity classes for a control unit (9) of the inking mechanisms of the printing press (1). The inking of the printing press (1) is then controlled on the basis of the input parameters thus computed.

摘要翻译： 为了控制印刷机中的油墨施加，由印刷机1印刷的纸张3相对于已经扩展为四个的所选颜色坐标系以多个像素（4）进行比色测量 还考虑到红外分量的维度。 根据对于每个像素（4）获得的颜色矢量计算相对于从参考片（3）预定义或由参考片（3）确定并被称为相同颜色坐标系的所需颜色矢量的色差矢量。 对于片材（3）的每个测量像素（4）确定灵敏度矩阵。 像素（4）根据灵敏度等级分类。 对于每个灵敏度类别对相同灵敏度类别的像素（4）的色差矢量和灵敏度矩阵进行平均，并且从平均的色差矢量和平均的灵敏度矩阵计算输入参数，特别是膜厚度修改矢量， 用于印刷机（1）的上墨机构的控制单元（9）的所有灵敏度等级。 然后基于这样计算的输入参数来控制印刷机（1）的着墨。

公开(公告)号：US20050134879A1

公开(公告)日：2005-06-23

申请号：US10995209

申请日：2004-11-24

申请人： Dietmar Fuchs ,  Harald Ammeter

发明人： Dietmar Fuchs ,  Harald Ammeter

IPC分类号： H04N1/60 ,  G06F15/00 ,  G03F3/08

CPC分类号： H04N1/6033

摘要： For the generation of a color profile for a digital camera a user surface is made available which allows for the input or adjustment or selection of reproduction influencing quantities characterizing the transformation behavior of the profile (P) to be generated. From the input or adjusted or selected reproduction influencing quantities, corresponding optimization rules for the optimization of the parameters for the model of the digital camera used for the profile calculation and/or corresponding correction rules for the table values of the profile (P) are determined. The optimization of the parameters of the model of the digital camera is carried out by way of these optimization rules, and the table values of the profile (P) are changed according to these correction rules. The different reproduction influencing quantities are combined to sensible combinations and offered to the user with suitable pre-settings by way of the user surface for selection or individual assessment. The user can thereby carry out in an easy and intuitive manner perception based and individual taste based aspects of the color reproduction as well as influencing measures on the color reproduction known from the classical analog photography, and can let them flow into the profile generation.

摘要翻译： 为了产生用于数字照相机的颜色特征，用户表面可用，其允许输入或调整或选择表征要生成的轮廓（P）的变换行为的再现影响量。 根据输入或调整或选择的再现影响量，确定用于用于轮廓计算的数字照相机模型的参数的优化和/或轮廓（P）的表值的对应校正规则的相应优化规则 。 通过这些优化规则对数字照相机模型的参数进行优化，根据这些校正规则改变轮廓（P）的表格值。 将不同的再现影响量组合成明智的组合，并通过用户表面提供给具有适当预设置的用户进行选择或单独评估。 因此，用户可以以简单和直观的方式进行基于感知和基于色彩再现的基于品味的方面，以及影响从古典模拟摄影已知的颜色再现的措施，并且可以使它们流入简档生成。

公开(公告)号：US07679785B2

公开(公告)日：2010-03-16

申请号：US11666369

申请日：2005-10-28

申请人： Peter Ehbets ,  Adrian Kohlbrenner ,  Harald Ammeter

发明人： Peter Ehbets ,  Adrian Kohlbrenner ,  Harald Ammeter

IPC分类号： H04N1/028 ,  G01J3/46

CPC分类号： H04N1/02815 ,  G01J3/02 ,  G01J3/0224 ,  G01J3/50 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/468 ,  G01N21/27 ,  G01N21/274

摘要： Image measurement values of a measurement object, in particular a printed sheet, measured by means of a photoelectric image measuring unit operating on the basis of pixels are corrected with respect to at least one influencing variable which influences the measurement result with a view to at least partially eliminating the effect of this influencing variable on the measuring process. The image measurement values measured by the image measuring unit are converted by correction parameters of a parameter-based correction model into corrected image measurement values which no longer contain the influencing variable affecting the measuring process. The correction parameters used for the parameter-based correction model are automatically calculated using reference measurement values measured at reference measurements points on preferably the same measurement object by means of a reference measuring unit and the image measuring unit. In particular, image measurement values measured without polarization filters are converted into polarization filter image measurement values by means of this method. Influences induced by print medium, fluorescence effects and the influences of non-standard measuring geometries are also corrected.

摘要翻译： 针对影响测量结果的至少一个影响变量，至少考虑至少一个影响测量对象，特别是通过基于像素操作的光电图像测量单元测量的打印纸的图像测量值被校正 部分消除了这种影响变量对测量过程的影响。 由图像测量单元测量的图像测量值通过基于参数的校正模型的校正参数转换为不再包含影响测量过程的影响变量的校正图像测量值。 用于基于参数的校正模型的校正参数通过参考测量单元和图像测量单元在优选地相同的测量对象上的参考测量点处测量的参考测量值自动计算。 具体而言，通过该方法将不使用偏振滤波器测量的图像测量值转换为偏振滤波器图像测量值。 打印介质引起的影响，荧光效应以及非标准测量几何的影响也得到纠正。

公开(公告)号：US20080037019A1

公开(公告)日：2008-02-14

申请号：US11834980

申请日：2007-08-07

申请人： Beat Frick ,  Harald Ammeter

发明人： Beat Frick ,  Harald Ammeter

IPC分类号： G01N21/25

CPC分类号： G01J3/51 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/36 ,  G01J3/513

摘要： A photoelectric color measuring head for measuring color properties of a measurement object includes an illumination device for exposing the measurement object to illuminating light and a wavelength-range-selective photoelectric receiver device (40) which intercepts measurement light remitted by the illuminated measurement object and converts it into corresponding electrical measurement signals. The illumination device includes an essentially white light-emitting diode (30) and means (60) for defining the angle of incidence range, so that the measurement object receives light only within an angle of incidence range, standardized for color measurement applications, of preferably 45°+/−5-10°. The receiver device includes a sensor field consisting of a multitude of photoelectric sensor pixels arranged in a line and the sensor pixels are made sensitive to different wavelength ranges through previously arranged color filters (420). The sensor field is in the form of a chip and is mounted together with the light-emitting diode (30) on a shared printed circuit board (1). The color filters (420) are arranged on an elongated transparent filter carrier and mounted directly above the light inlet window of the sensor field. The sensor field is formed together with the color filters as a flat sandwich structure and surrounded by a protective frame and cast with an opaque sealing compound. The color measuring head has an extremely small structural volume and can be produced with relatively limited construction resources.

摘要翻译： 用于测量被测物体的色彩特性的光电测色头包括用于将测量对象照射到照明光的照明装置和一个波长范围选择性光电接收装置（40），该光束接收装置截取被照亮的测量对象所汇集的测量光并将其转换 它变成相应的电测信号。 照明装置包括基本上白色的发光二极管（30）和用于限定入射范围的装置（60），使得测量对象仅在颜色测量应用标准化的入射角范围内接收光 45°+/- 5-10°。 接收机设备包括由布置在一行中的多个光电传感器像素组成的传感器场，并且通过预先布置的滤色器（420）使传感器像素对不同波长范围敏感。 传感器场是芯片的形式，并与发光二极管（30）一起安装在共享印刷电路板（1）上。 滤色器（420）布置在细长的透明过滤器载体上，并直接安装在传感器场的光入口窗口的正上方。 传感器场与滤色器一起形成为平坦的夹层结构，并被保护框架包围并用不透明的密封化合物铸造。 测色头具有非常小的结构体积，并且可以以相对有限的施工资源生产。

公开(公告)号：US20070260413A1

公开(公告)日：2007-11-08

申请号：US11666369

申请日：2005-10-28

申请人： Peter Ehbets ,  Adrian Kohlbrenner ,  Harald Ammeter

发明人： Peter Ehbets ,  Adrian Kohlbrenner ,  Harald Ammeter

IPC分类号： G06F19/00

CPC分类号： H04N1/02815 ,  G01J3/02 ,  G01J3/0224 ,  G01J3/50 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/468 ,  G01N21/27 ,  G01N21/274

摘要： Image measurement values of a measurement object, in particular a printed sheet, measured by means of a photoelectric image measuring unit operating on the basis of pixels are corrected with respect to at least one influencing variable which influences the measurement result with a view to at least partially eliminating the effect of this influencing variable on the measuring process. The image measurement values measured by the image measuring unit are converted by correction parameters of a parameter-based correction model into corrected image measurement values which no longer contain the influencing variable affecting the measuring process. The correction parameters used for the parameter-based correction model are automatically calculated using reference measurement values measured at reference measurements points on preferably the same measurement object by means of a reference measuring unit and the image measuring unit. In particular, image measurement values measured without polarization filters are converted into polarization filter image measurement values by means of this method. Influences induced by print medium, fluorescence effects and the influences of non-standard measuring geometries are also corrected.

摘要翻译： 针对影响测量结果的至少一个影响变量，至少考虑至少一个影响测量对象，特别是通过基于像素操作的光电图像测量单元测量的打印纸的图像测量值被校正 部分消除了这种影响变量对测量过程的影响。 由图像测量单元测量的图像测量值通过基于参数的校正模型的校正参数转换为不再包含影响测量过程的影响变量的校正图像测量值。 用于基于参数的校正模型的校正参数通过参考测量单元和图像测量单元在优选地相同的测量对象上的参考测量点处测量的参考测量值自动计算。 具体而言，通过该方法将不使用偏振滤波器测量的图像测量值转换为偏振滤波器图像测量值。 打印介质引起的影响，荧光效应以及非标准测量几何的影响也得到纠正。