公开(公告)号：US07501647B2

公开(公告)日：2009-03-10

申请号：US11042383

申请日：2005-01-25

申请人： Theodor Tatarczyk ,  Armin Weichmann

发明人： Theodor Tatarczyk ,  Armin Weichmann

IPC分类号： G01N21/86 ,  H01L27/00 ,  G03B7/00 ,  H04N3/14

CPC分类号： H04N1/028 ,  B41F33/0036 ,  B41P2233/51 ,  H04N1/00002 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00055 ,  H04N1/00058 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/02805 ,  H04N2201/02493

摘要： An apparatus for acquiring and evaluating an image of a predetermined extract of a printed product removes the effects of scattered light to improve the accuracy of image evaluation. The apparatus uses a camera that has an electronic image sensor with a two-dimensional arrangement of sensor elements. An aperture stop is arranged in the beam path of the camera for shadowing a predetermined part of the image sensor. When an acquired image is read from a part of the image sensor that is not shadowed, corresponding readings from the shadowed portion of the sensor are subtracted from the acquired image to obtain intensity signals corrected for scattered light.

摘要翻译： 用于获取和评估印刷品的预定提取物的图像的装置消除散射光的影响，以提高图像评价的准确性。 该装置使用具有传感器元件的二维布置的电子图像传感器的相机。 在相机的光束路径中布置孔径光阑，用于遮蔽图像传感器的预定部分。 当从未被遮蔽的图像传感器的一部分读取获取的图像时，从获取的图像中减去来自传感器的阴影部分的相应读数，以获得针对散射光校正的强度信号。

公开(公告)号：US07961247B2

公开(公告)日：2011-06-14

申请号：US11042387

申请日：2005-01-25

申请人： Theodor Tatarczyk

发明人： Theodor Tatarczyk

IPC分类号： H04N5/225 ,  H04N5/222 ,  H04N1/46

CPC分类号： B41F33/0036

摘要： An apparatus and method for acquiring an image of a predetermined extract of a moving printed product employs at least one black-and-white camera with a two-dimensional electronic image sensor and one or more illumination devices suitable for pulse-like illumination. The illumination device has multiple light sources forming spectral groups that have different spectral compositions. The light sources are arranged in a pattern such that the light sources of each spectral group completely illuminate the area of observation of the camera. A control device switches the individual spectral groups of light sources on and off sequentially such that the area of observation of the camera is illuminated with a sequence of light pulses of different spectral compositions. During each light pulse, the predetermined extract on a printed product moves into the area of observation of the camera, and an image of extract is captured.

摘要翻译： 用于获取移动印刷品的预定提取物的图像的装置和方法使用至少一个具有二维电子图像传感器的黑白​​相机和适用于脉冲状照明的一个或多个照明装置。 照明装置具有形成具有不同光谱组成的光谱组的多个光源。 光源被布置成使得每个光谱组的光源完全照亮照相机的观察区域的图案。 控制装置顺序地切换光源的各个光谱组，使得照相机的观察区域被不同光谱组成的光脉冲序列照亮。 在每个光脉冲期间，打印产品上的预定提取物移动到相机的观察区域中，并且捕获提取图像。

公开(公告)号：US07551775B2

公开(公告)日：2009-06-23

申请号：US11042891

申请日：2005-01-25

申请人： Theodor Tatarczyk

发明人： Theodor Tatarczyk

IPC分类号： G06K9/00 ,  G03F3/08 ,  H04N1/46 ,  H04N17/00 ,  H04N17/02

CPC分类号： B41F33/0036 ,  B41P2233/51 ,  G01J1/4228 ,  G01J3/50

摘要： A method for evaluating an image of a predetermined extract of a printed product makes corrections to a white reference to account for spatial variations and changes of illumination intensity over time. Intensity signals recorded from first predetermined areas within the extract are combined arithmetically with reference data values that represent a measure of the intensity of the light reflection from unprinted regions of the printed product. At the start, an image of a white reference is recorded and basic reference data for the entire extract are derived from the intensity signals of this image. During each evaluation of an image of the predetermined extract, correction data are derived from intensity signals recorded from second predetermined areas within the extract. Before the intensity signals recorded from the first predetermined areas within the predetermined extract are arithmetically combined with the reference data, the latter are determined by means of an arithmetic combination of the basic reference data with the correction data.

摘要翻译： 用于评估打印产品的预定提取物的图像的方法对白色参考进行校正，以考虑随时间的空间变化和照明强度的变化。 从提取物中的第一预定区域记录的强度信号与表示来自印刷品的未打印区域的光反射强度的量度的参考数据值进行算术组合。 在开始时，记录白色基准的图像，并从该图像的强度信号导出整个提取物的基本参考数据。 在对预定提取物的图像的每次评估期间，从提取物内的第二预定区域记录的强度信号导出校正数据。 在从预定提取物中的第一预定区域记录的强度信号与参考数据进行算术组合之前，通过基本参考数据与校正数据的算术组合来确定后者。

公开(公告)号：US20060001924A1

公开(公告)日：2006-01-05

申请号：US11042387

申请日：2005-01-25

申请人： Theodor Tatarczyk

发明人： Theodor Tatarczyk

IPC分类号： H04N1/46

CPC分类号： B41F33/0036

摘要： An apparatus and method for acquiring an image of a predetermined extract of a moving printed product employs at least one black-and-white camera with a two-dimensional electronic image sensor and one or more illumination devices suitable for pulse-like illumination. The illumination device has multiple light sources forming spectral groups that have different spectral compositions. The light sources are arranged in a pattern such that the light sources of each spectral group completely illuminate the area of observation of the camera. A control device switches the individual spectral groups of light sources on and off sequentially such that the area of observation of the camera is illuminated with a sequence of light pulses of different spectral compositions. During each light pulse, the predetermined extract on a printed product moves into the area of observation of the camera, and an image of extract is captured.

摘要翻译： 用于获取移动印刷品的预定提取物的图像的装置和方法使用至少一个具有二维电子图像传感器的黑白​​相机和适用于脉冲状照明的一个或多个照明装置。 照明装置具有形成具有不同光谱组成的光谱组的多个光源。 光源被布置成使得每个光谱组的光源完全照亮照相机的观察区域的图案。 控制装置顺序地切换光源的各个光谱组，使得照相机的观察区域被不同光谱组成的光脉冲序列照亮。 在每个光脉冲期间，打印产品上的预定提取物移动到相机的观察区域中，并且捕获提取图像。

公开(公告)号：US5256883A

公开(公告)日：1993-10-26

申请号：US959747

申请日：1992-10-13

申请人： Armin Weichmann ,  Theodor Tatarczyk

发明人： Armin Weichmann ,  Theodor Tatarczyk

IPC分类号： B41F33/00 ,  G01J1/44 ,  G01N21/89 ,  H04N5/3725 ,  G01N21/86

CPC分类号： G01N21/8903 ,  B41F33/0036 ,  H04N3/1525 ,  G01J2001/448

摘要： Information is received from an image on a moving substrate. Flash exposure is used, defining operating or exposure cycles. The reflection or a representation of the image is subdivided into a matrix having n columns and m rows or lines. The sensor is a charge coupled device (CCD), arranged to have a sensing area (11) with n columns and m rows or lines, and a storage region or section (12), likewise arranged to have storage cells of n and m columns and rows or lines. Information of any one image element, upon sensing, is shifted by a line transfer pulse by one image line. The line transfer pulses are synchronized with web movement of the substrate and operate as shift pulses. The m line, at the first transfer line shift pulse, is shifted into the first line or row of the matrix of the storage portion of the CCD. For each operating cycle, at least one line transfer pulse is used. The information of the image elements can be read out serially from the storage portion (12) at high speed. The storage portion of the CCD chip is protected against exposure to light.

摘要翻译： 从移动基板上的图像接收信息。 使用闪光曝光，定义工作或曝光周期。 图像的反射或表示被细分为具有n列和m行或行的矩阵。 传感器是电荷耦合器件（CCD），被布置为具有n列和m行或线的感测区域（11），以及存储区域或部分（12），其同样被布置成具有n和m列的存储单元 和行或行。 任何一个图像元素在感测时的信息通过线路传输脉冲移位一个图像线。 线传输脉冲与基板的幅材移动同步，并作为移位脉冲进行操作。 在第一传输线移位脉冲处的m行被移动到CCD的存储部分的矩阵的第一行或行中。 对于每个操作周期，使用至少一个线传输脉冲。 图像元素的信息可以从存储部分（12）高速读出。 CCD芯片的存储部分被防止曝光。