公开(公告)号：US5767886A

公开(公告)日：1998-06-16

申请号：US616992

申请日：1996-03-14

申请人： Haruko Kawakami ,  Hidekazu Sekizawa

发明人： Haruko Kawakami ,  Hidekazu Sekizawa

IPC分类号： B41J2/21 ,  G06T1/20 ,  H03M7/36 ,  H04N1/405 ,  H04N1/52 ,  H04N1/60 ,  B41J2/385 ,  B41J29/393 ,  G01D15/06 ,  G03G15/01

CPC分类号： H04N1/52

摘要： An ink amount correction system is provided in a color image printer system for printing a full color image by mixing yellow, magenta, cyanogen and India ink amount signals. The ink amount correction system includes: a plurality of color ink amount correction circuits which include a quantization section for quantizing a color ink amount indicative signal representative of the amount of an ink of a predetermined color corresponding to each of picture elements of a primary color image; an error calculating section for calculating a quantization error between the input and output of the quantization section, to output as a quantization error signal; and a feedback correction section for adding the quantization error signal derived by the error calculating section, to the corresponding color ink amount indicative signal of the surrounding picture element, for correcting the ink amount indicative signal. The average value of the quantization error signal is added before the quantization of an ink amount indicative signal of a black ink having the maximum influence upon luminance. As a result, it is possible to reduce the dispersion of the degree of overlapping of inks for each of the picture elements to carry out the recording of good quality, in a case where a color image is printed by means of inks of a plurality of colors using error diffusion.

摘要翻译： 在彩色图像打印机系统中设置墨水量校正系统，用于通过混合黄色，​​品红色，氰色和印度墨水量信号来打印全色图像。 墨水量校正系统包括：多个彩色墨水量校正电路，其包括用于量化表示与原色图像的每个图像元素相对应的预定颜色的墨量的颜色墨水量指示信号的量化部分 ; 误差计算部分，用于计算量化部分的输入和输出之间的量化误差，作为量化误差信号输出; 以及反馈校正部分，用于将由误差计算部分导出的量化误差信号与周围图像元素的相应颜色墨水量指示信号相加，以校正墨量指示信号。 量化误差信号的平均值在对亮度影响最大的黑色墨水的墨量指示信号的量化之前相加。 结果，在通过多个墨水的油墨印刷彩色图像的情况下，可以减少每个图像元素的墨水的重叠程度的分散，从而进行良好的记录 颜色使用误差扩散。

公开(公告)号：US5652626A

公开(公告)日：1997-07-29

申请号：US299970

申请日：1994-09-02

申请人： Haruko Kawakami ,  Hidekazu Sekizawa ,  Naofumi Yamamoto

发明人： Haruko Kawakami ,  Hidekazu Sekizawa ,  Naofumi Yamamoto

IPC分类号： G06T1/00 ,  H04N1/32 ,  H04N1/46 ,  H04N7/08

CPC分类号： H04N1/46 ,  G06T1/0028 ,  H04N1/32208 ,  H04N1/32309 ,  G06T2201/0051 ,  H04N2201/327 ,  H04N2201/3271 ,  H04N2201/3278

摘要： In the apparatus for processing a color image, a data signal representing another information differs from the color image is generated by a generating means. The another information is embedded into the color image by varying one of a color difference and a chroma of the color image in accordance with the data signal by an image processing means.

摘要翻译： 在用于处理彩色图像的装置中，由生成装置产生表示与彩色图像不同的另一种信息的数据信号。 通过图像处理装置根据数据信号改变彩色图像的色差和色度之一，将另一信息嵌入到彩色图像中。

公开(公告)号：US5315413A

公开(公告)日：1994-05-24

申请号：US907597

申请日：1992-07-02

申请人： Naofumi Yamamoto ,  Hidekazu Sekizawa

发明人： Naofumi Yamamoto ,  Hidekazu Sekizawa

IPC分类号： H04N1/46 ,  G06T1/00 ,  H04N1/48 ,  H04N1/58 ,  H04N1/60

CPC分类号： H04N1/486 ,  H04N1/58

摘要： A color image reading and compensating device comprises an image reader including a color image sensor for forming a number of dots arranged in a line, each of the dots being composed of a plurality of pixels corresponding to a plurality of colors, respectively, for outputting a color image signal having a plurality of color signal components for each dot, and a compensating circuit for compensating phase and resolution characteristics of the color image signal, by use of not only one color signal component selected from the color signal components of the color image signal but also the other color signal components, the one color signal component and the other signal components corresponding to a dot of interest and dot in close proximity thereto.

摘要翻译： 彩色图像读取和补偿装置包括：图像读取器，包括用于形成排列成一行的多个点的彩色图像传感器，每个点由分别对应于多个颜色的多个像素组成，用于输出 每个点具有多个彩色信号分量的彩色图像信号，以及用于补偿彩色图像信号的相位和分辨率特性的补偿电路，不仅通过使用从彩色图像信号的颜色信号分量中选择的一种颜色信号分量 而且还有其他颜色信号分量，一个颜色信号分量和对应于感兴趣点的其他信号分量，并且与其紧密接近。

公开(公告)号：US4916549A

公开(公告)日：1990-04-10

申请号：US211266

申请日：1988-06-24

申请人： Hidekazu Sekizawa

发明人： Hidekazu Sekizawa

IPC分类号： H04N1/19 ,  H04N1/401

CPC分类号： H04N1/401

摘要： An image sensing apparatus with shading compensation is provided such that an object to be sensed is moved with respect to light sensing elements and the same point of the object is sensed by different light sensing elements, whereby shading compensation information can be obtained. When a white reference board is used as the object, despite non-uniformity in brightness of the white reference board, uniform image sensing signals with proper shading compensation can be obtained independent of variations in sensitivity of the light sensing elements.

公开(公告)号：US4661843A

公开(公告)日：1987-04-28

申请号：US753260

申请日：1985-07-09

申请人： Hidekazu Sekizawa ,  Akito Iwamoto ,  Naofumi Yamamoto ,  Hitoshi Yoneda

发明人： Hidekazu Sekizawa ,  Akito Iwamoto ,  Naofumi Yamamoto ,  Hitoshi Yoneda

IPC分类号： H04N1/407 ,  H04N1/60 ,  H04N1/46

CPC分类号： H04N1/6027 ,  H04N1/4076 ,  H04N1/6019

摘要： A color copying apparatus includes a color image sensor, an image information signal processing unit, and a color printer. The apparatus converts the three color component signals from the color image sensor into a luminance signal component and color difference signal components. At least one of the luminance signal component and the color difference signal components is subject to a nonlinear conversion. For density conversion between an input image and an output image, the luminance signal component is subject to a nonlinear conversion in a nonlinear conversion circuit.

摘要翻译： 彩色复印设备包括彩色图像传感器，图像信息信号处理单元和彩色打印机。 该装置将来自彩色图像传感器的三色分量信号转换为亮度信号分量和色差信号分量。 亮度信号分量和色差信号分量中的至少一个进行非线性转换。 对于输入图像和输出图像之间的浓度转换，亮度信号分量在非线性转换电路中经受非线性转换。

公开(公告)号：US4560280A

公开(公告)日：1985-12-24

申请号：US523768

申请日：1983-08-17

申请人： Akito Iwamoto ,  Hidekazu Sekizawa

发明人： Akito Iwamoto ,  Hidekazu Sekizawa

IPC分类号： G01B11/02 ,  G01B11/14

CPC分类号： G01B11/02 ,  G01B11/14

摘要： The distance between first and second grating-like structures such as a shadow mask and a faceplate of a color picture tube or the size of pattern elements of the second grating-like structure such as black stripes formed on the inner surface of the faceplate is optically measured. The shadow mask has a periodic pattern of apertures or slots and the faceplate has a periodic pattern of the black stripes. An optical system located between a light source and an assembly of the first and second grating-like structures applies parallel rays of light to the assembly and is arranged to vary an incident angle of the parallel rays to the assembly. A photodetector detects the quantity of light passed through the assembly to produce an electric signal whose amplitude periodically varies with variation in the incident angle of the parallel rays to the assembly. A signal processing unit evaluates the distance between the first and second grating-like structures or the size of pattern elements forming the second grating-like structure on the basis of the electric signal from the photodetector.

摘要翻译： 第一和第二格栅状结构之间的距离，例如荫罩和彩色显象管的面板，或者形成在面板的内表面上的第二格栅状结构的图案元件的大小（例如黑色条纹）是光学的 测量。 荫罩具有孔或槽的周期性图案，并且面板具有黑色条纹的周期性图案。 位于光源和第一和第二格栅状结构的组件之间的光学系统将平行光线施加到组件，并且被布置成改变平行射线与组件的入射角。 光电检测器检测通过组件的光量以产生其信号，其幅度周期性地随着平行射线与组件的入射角的变化而变化。 信号处理单元基于来自光电检测器的电信号来评估第一和第二格栅状结构之间的距离或形成第二格栅状结构的图案元素的尺寸。

公开(公告)号：US4153336A

公开(公告)日：1979-05-08

申请号：US752984

申请日：1976-12-21

申请人： Masana Minami ,  Hidekazu Sekizawa

发明人： Masana Minami ,  Hidekazu Sekizawa

IPC分类号： G01N21/88 ,  G01B11/24 ,  G01N21/956 ,  G02B27/46 ,  H01L21/027 ,  H01L21/66 ,  G02B27/38 ,  G01N21/00

CPC分类号： G01B11/2433 ,  G01N21/956

摘要： An apparatus for detecting the defects composed of non-linear components of a subject pattern, includes a laser source for illuminating the subject pattern by a laser beam, a Fourier-transform lens for projecting an information light from the pattern through a spatial filter onto a screen. The filter is placed on the Fourier-transform plane of the Fourier-transformed information light for intercepting the coherent light having information of the linear components, the filter having arm sections extending correspondingly to the linear components of said normal pattern, the outer periphery of said arm sections including curved sections protruding toward the intersecting point of the arms.

摘要翻译： 一种用于检测由被摄体图形的非线性分量构成的缺陷的装置，包括用于通过激光束照射被摄体图案的激光源，用于将来自图案的信息光通过空间滤光器投影到傅立叶变换透镜上的傅里叶变换透镜， 屏幕。 滤波器被放置在用于截取具有线性分量的信息的相干光的傅里叶变换信息光的傅里叶变换平面上，所述滤波器具有相应于所述正常图案的线性分量延伸的臂部分，所述 臂部分包括朝向臂的交叉点突出的弯曲部分。

公开(公告)号：US07616359B2

公开(公告)日：2009-11-10

申请号：US11452757

申请日：2006-06-14

申请人： Hidekazu Sekizawa ,  Akihiko Someya ,  Yusuke Hashizume

发明人： Hidekazu Sekizawa ,  Akihiko Someya ,  Yusuke Hashizume

IPC分类号： H04N1/46 ,  G06F15/00 ,  H04N1/04

CPC分类号： H04N1/46 ,  H04N1/48

摘要： In an image reading apparatus for reading a color document as a monochrome image, an image forming apparatus of the invention includes a composite light source that irradiates the color document and includes plural light sources different in spectral distribution, a sensor to detect the intensity of a reflected light from the color document, a light emission ratio setting unit to changeably set light emission ratios different for the respective light sources, and a light source control unit to control effective light amounts of the plural light sources with the set light emission ratios. According to the image forming apparatus of the invention, when the color document is monochromatically read, the reading is performed with the brightness close to the human visual sensitivity, the user can changeably set color sensitivity, and uneven density can be reduced.

摘要翻译： 在用于读取作为单色图像的彩色文档的图像读取装置中，本发明的图像形成装置包括：照射彩色文档并包括多个光谱分布不同的光源的复合光源，用于检测彩色原稿的强度的传感器 来自彩色原稿的反射光，用于可变地设定各光源的发光比的发光比设定单元，以及以设定的发光比来控制多个光源的有效光量的光源控制单元。 根据本发明的图像形成装置，当彩色文档被单色读取时，以接近人的视觉灵敏度的亮度执行读取，用户可以可变地设置色彩灵敏度，并且可以减小不均匀的浓度。

公开(公告)号：US06377361B1

公开(公告)日：2002-04-23

申请号：US09228956

申请日：1999-01-12

申请人： Eiichi Sakaue ,  Naofumi Yamamoto ,  Hidekazu Sekizawa ,  Hiroki Kanno

发明人： Eiichi Sakaue ,  Naofumi Yamamoto ,  Hidekazu Sekizawa ,  Hiroki Kanno

IPC分类号： G06K1500

CPC分类号： H04N1/4056 ,  G06K15/1223 ,  G06K15/128 ,  H04N1/4055

摘要： In an image processing device, image data is buffered by an image buffer section to output an interested pixel value and surrounding pixel values of a pixel surrounding an interested pixel. A shift condition determination section determines on the basis of the interested pixel value and the surrounding pixel values whether or not the interested pixel value should be shifted, and outputs a shift determination result. A pixel shifting amount computing section computes the pixel shifting amount of the interested pixel, and the shifted pixel position calculation section outputs a shift pixel position signal on the basis of setting parameters Tx and Ty, and clock signals XCLOCK and YCLOCK. A pixel value shifting section outputs the interested pixel value after the shifting on the basis of the interested pixel value, a shift determination result, the pixel shifting amount, and the shift pixel position signal.

摘要翻译： 在图像处理装置中，由图像缓冲部分缓冲图像数据，以输出感兴趣象素周围的感兴趣的像素值和周围的像素值。 移位条件确定部分基于感兴趣像素值和周围像素值确定是否应该偏移感兴趣的像素值，并且输出移位确定结果。 像素偏移量计算部分计算感兴趣像素的像素移位量，并且移位像素位置计算部分基于设置参数Tx和Ty以及时钟信号XCLOCK和YCLOCK输出移位像素位置信号。 像素值移位部根据感兴趣像素值，移位判定结果，像素移位量以及移位像素位置信号，输出移位后的感兴趣像素值。

公开(公告)号：US06095566A

公开(公告)日：2000-08-01

申请号：US816309

申请日：1997-03-13

申请人： Naofumi Yamamoto ,  Hidekazu Sekizawa ,  Haruko Kawakami ,  Kazuhiko Higuchi

发明人： Naofumi Yamamoto ,  Hidekazu Sekizawa ,  Haruko Kawakami ,  Kazuhiko Higuchi

IPC分类号： B42D15/10 ,  B42D15/00

CPC分类号： B42D25/00 ,  B42D25/309 ,  Y10S428/913 ,  Y10S428/914 ,  Y10T428/24802

摘要： An image recording system superimposes, on an original image, an additional image which is same as at least any one of visible characters, symbols and numerals recorded on a recorded product and records the superimposed image on the recorded product as an image for certification. The additional image superimpose-recorded on the recorded product cannot visually be recognized and it is permitted to be visible when a universal optical filter is used.

摘要翻译： 图像记录系统在原始图像上叠加与记录的产品上记录的可见字符，符号和数字中的至少任一个相同的附加图像，并将叠加的图像记录在记录的产品上作为用于认证的图像。 叠加记录在记录的产品上的附加图像在视觉上不能识别，并且当使用通用滤光器时允许其可见。