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    Method for reducing noise in image signals and apparatus therefor
    1.
    发明授权
    Method for reducing noise in image signals and apparatus therefor 失效
    降低图像信号噪声的方法及其装置

    公开(公告)号：US5784499A

    公开(公告)日：1998-07-21

    申请号：US877727

    申请日：1997-06-18

    申请人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    发明人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    IPC分类号： H04N5/91 ,  G06T5/20 ,  H04N1/409 ,  H04N5/21 ,  G06K9/40

    CPC分类号： H04N5/21 ,  G06T5/20

    摘要： In an image data including tone information, a level of an attentional picture element in an image and a level of an adjacent picture element located adjacent to the attentional picture element are smoothed to create a first substitution level, and by internally dividing the level of the attentional picture element and the first substitution level with a predetermined internal division ratio to obtain a second substitution level which finally substitutes the level of the attentional picture element.

    摘要翻译： 在包括音调信息的图像数据中，图像中的注意图像元素的水平和与注意图像元素相邻的相邻图像元素的电平被平滑以产生第一替代水平，并且通过将 注意图像元素和具有预定内分频比的第一替换级别，以获得最终替代注意图像元素的级别的第二替换级别。

    Method and apparatus for detecting interpolation line
    3.
    发明授权
    Method and apparatus for detecting interpolation line 失效
    插值线检测方法及装置

    公开(公告)号：US5703968A

    公开(公告)日：1997-12-30

    申请号：US424036

    申请日：1995-04-18

    申请人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    发明人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    IPC分类号： H04N7/01 ,  H04N7/12 ,  G06K9/38

    CPC分类号： H04N7/012 ,  H04N7/125

    摘要： A level difference of an upper pixel on an upper scanning line placed over an attentional pixel and a lower pixel on a lower scanning line placed under the attentional pixel, a level difference of the upper pixel and a lower left pixel, a level difference of the upper pixel and a lower right pixel, and a level difference of the lower pixel and an upper left pixel and a level difference of the lower pixel and an upper right pixel are derived. These level differences are compared with each other, and a line having a smallest level difference is detected and an effective interpolation line information is generated. Moreover, the level difference of the upper pixel and lower pixel is compared with the level difference of the upper right pixel and lower left pixel, and a smaller is set as a first interpolation line. In a similar manner, a second interpolation line is derived, and an ultimate interpolation line is selected from the first interpolation line, the second interpolation line and a line connecting the upper pixel and lower pixel on the basis of the effective interpolation line information.

    摘要翻译： 放置在注意像素下方的上部扫描线上的上部像素和位于注意像素下方的下部扫描线上的下部像素的上部像素的电平差，上部像素和左下像素的电平差， 导出上像素和右下像素，并且导出下像素和左上像素的电平差以及下像素和右上像素的电平差。 将这些电平差进行比较，检测出具有最小电平差的线，生成有效插补线信息。 此外，将上像素和下像素的电平差与右上像素和左下像素的电平差进行比较，将较小的像素设置为第一插值线。 以类似的方式，导出第二内插线，并且根据有效内插线信息从第一内插线，第二内插线和连接上像素和下像素的线选择极限内插线。

    Filter for reducing a noise component of a chrominance signal and chrominance signal noise component reducing method
    4.
    发明授权
    Filter for reducing a noise component of a chrominance signal and chrominance signal noise component reducing method 失效
    用于降低色度信号的噪声分量和色度信号噪声分量降低方法的滤波器

    公开(公告)号：US5541668A

    公开(公告)日：1996-07-30

    申请号：US388654

    申请日：1995-02-14

    申请人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    发明人： Yasuhiro Kuwahara ,  Haruo Yamashita ,  Tsumoru Fukushima

    IPC分类号： H04N9/79 ,  H04N5/21 ,  H04N9/00 ,  H04N9/07 ,  H04N9/64 ,  H04N5/213

    CPC分类号： H04N9/646 ,  H04N5/21

    摘要： Luminance data Y(1) (i=1,2, - - - ,n, - - - ) are input one by one to a detecting unit, and luminance correlation information R(i-1,i) denoting a luminance correlation or a luminance non-correlation between the luminance data Y(i) and Y(i-1) are generated. Four pieces of luminance correlation information R(n-1,n) to R(n+2,n+3) are stored in a filter controlling unit. Also, chrominance data C(i) are input one by one to a starting-stage chrominance data generating unit, and starting-stage chrominance data C1(n+2) is generated from the chrominance data C(n+1), C(n+2) and C(n+3) according to the luminance correlation information R(n+1,n+2) and R(n+2,n+3). other starting-stage chrominance data C1(n) and C(n+1) are generated in advance in the same manner. Second-stage chrominance data C2(n+1) is generated from the starting-stage chrominance data C(n), C(n+1) and C(n+2) in a second-stage chrominance data generating unit according to the luminance correlation information R(n,n+1) and R(n+1,n+2). Also, other second-stage chrominance data C2(n-1) and C2(n) are generated in advance in the same manner. Smoothed chrominance data C3(n) is generated from the second-stage chrominance data C(n-1), C(n) and C(n+1) in a final-stage chrominance data generating unit according to the luminance correlation information R(n-1,n) and R(n,n+1). Therefore, each of smoothed chrominance data C3(i) can be generated with a limited number of memories at a high speed.

    摘要翻译： 亮度数据Y（1）（i = 1,2， - - ，n， - - ）被逐个输入到检测单元，亮度相关信息R（i-1，i）表示亮度相关性 产生亮度数据Y（i）和Y（i-1）之间的亮度不相关。 四个亮度相关信息R（n-1，n）〜R（n + 2，n + 3）被存储在滤波器控制单元中。 此外，色度数据C（i）逐个输入到起始级色度数据生成单元，并且从色度数据C（n + 1），C（n + 2）生成起始级色度数据C1（n + 根据亮度相关信息R（n + 1，n + 2）和R（n + 2，n + 3），n（n + 2）和C（n + 3） 以相同的方式预先生成其他起始级色度数据C1（n）和C（n + 1）。 第二级色度数据C2（n + 1）根据第二级色度数据生成单元从起始级色度数据C（n），C（n + 1）和C（n + 2）生成 亮度相关信息R（n，n + 1）和R（n + 1，n + 2）。 此外，以相同的方式预先生成其他第二级色度数据C2（n-1）和C2（n）。 平滑色度数据C3（n）根据亮度相关信息R从最后级色度数据生成单元中的第二级色度数据C（n-1），C（n）和C（n + 1）生成 （n-1，n）和R（n，n + 1）。 因此，每个平滑的色度数据C3（i）可以以有限数量的存储器高速生成。

    Digital printer
    5.
    发明授权
    Digital printer 失效
    数码打印机

    公开(公告)号：US07161707B1

    公开(公告)日：2007-01-09

    申请号：US09979379

    申请日：2000-05-19

    申请人： Tsumoru Fukushima ,  Haruo Yamashita ,  Takeshi Ito ,  Yoshiyasu Kado

    发明人： Tsumoru Fukushima ,  Haruo Yamashita ,  Takeshi Ito ,  Yoshiyasu Kado

    IPC分类号： G06F15/00

    CPC分类号： H04N1/2338 ,  H04N1/00132 ,  H04N1/00915 ,  H04N1/23 ,  H04N1/2361 ,  H04N1/32502 ,  H04N1/32523 ,  H04N1/32545 ,  H04N1/32555 ,  H04N2201/0082 ,  H04N2201/0087

    摘要： Comprising a data reader 31 for reading digital camera image data, a means 32 for setting, for example, the number of prints, a plurality of printers 33, a printer selector 34 for selecting which of the plurality of printers to use, and a controller 35 for sending a specific control signal to the printer selector 34 and image data to a specific printer 33 based on the information set by the setting means 32, each printer 33 is provided with an image processing circuit 36 for processing the read image data.

    摘要翻译： 包括用于读取数字照相机图像数据的数据读取器31，用于设置例如打印数量的装置32，多个打印机33，用于选择要使用的多个打印机中的哪一个的打印机选择器34，以及控制器 35，用于根据由设定装置32设定的信息向打印机选择器34发送特定的控制信号，并向特定的打印机33显示图像数据，每个打印机33都设有用于处理读取的图像数据的图像处理电路36。

    Image signal processing method and apparatus
    7.
    发明授权
    Image signal processing method and apparatus 失效
    图像信号处理方法及装置

    公开(公告)号：US5432869A

    公开(公告)日：1995-07-11

    申请号：US982301

    申请日：1992-11-25

    申请人： Yasuki Matsumoto ,  Haruo Yamashita ,  Tsumoru Fukushima

    发明人： Yasuki Matsumoto ,  Haruo Yamashita ,  Tsumoru Fukushima

    IPC分类号： G06T1/00 ,  G06T5/20 ,  H04N9/64 ,  H04N9/79 ,  H04N11/14 ,  G06K9/40

    CPC分类号： H04N9/646

    摘要： An improved image signal processing method and apparatus which can reduce the color noises of high level with a simple construction without deterioration of the apparent resolution of the color signal, and wherein the color noise components in the horizontal direction is diffused in the vertical direction, in a region where the change in the brilliance distribution is less, by the detection of the correlation in the vertical direction of the brilliance. The smoothing processing with respect to the color signal is prohibited with respect to the abrupt edge portion so as to preserve the edge portion of the color, with an superior effect that the S/N improvement of the high level can be effected without deterioration of the color resolution in the vertical direction of the image.

    摘要翻译： 一种改进的图像信号处理方法和装置，其可以以简单的结构降低高级色彩噪声，而不会降低颜色信号的表观分辨率，并且其中水平方向上的颜色噪声分量在垂直方向上扩散， 通过检测亮度的垂直方向上的相关性，其中亮度分布的变化较小的区域。 关于颜色信号的平滑处理相对于突变边缘部分被禁止以便保持颜色的边缘部分，具有可以实现高水平的S / N改善而不会劣化的优异效果 图像垂直方向的颜色分辨率。

    Image processing method for correcting a target pixel using emphasizing and smoothing components
    8.
    发明授权
    Image processing method for correcting a target pixel using emphasizing and smoothing components 失效
    使用强调和平滑分量校正目标像素的图像处理方法

    公开(公告)号：US5390264A

    公开(公告)日：1995-02-14

    申请号：US987220

    申请日：1992-12-08

    申请人： Hideshi Ishihara ,  Haruo Yamashita ,  Tsumoru Fukushima

    发明人： Hideshi Ishihara ,  Haruo Yamashita ,  Tsumoru Fukushima

    IPC分类号： H04N1/409 ,  G06T5/20 ,  G06K9/40

    CPC分类号： G06T5/20

    摘要： In an image processing method for correcting a target pixel using emphasizing and smoothing components, a microcomputer stores the input image signal into an image memory, and generates the enhancement coefficient k data in the enhancement coefficient table memory using a function with an input/output characteristic whereby the output is a simple increasing value when the input is approximately zero. Using a first difference, which is the difference of the target pixel signal minus the signal of the reference pixel positioned on a first direction, the enhancement coefficient k is obtained by referencing the enhancement coefficient table, and the target pixel is enhanced proportionally to the enhancement coefficient k and the first difference. The target pixel is also gradated or smoothed in proportion to the enhancement coefficient k and the second difference, which is the target pixel signal minus the average of the signals of the second and third reference pixels, which are the reference pixels in the directions perpendicular to the first direction and on opposite sides of the target pixel. The target pixel signal is corrected by repeating this process for each of the reference pixels positioned on the four directions surrounding the target pixel, and the corrected image signal is stored to the image memory. The enhanced image signal is obtained by repeating this process for all input image signals.

    摘要翻译： 在使用强调和平滑分量校正目标像素的图像处理方法中，微计算机将输入图像信号存储到图像存储器中，并且使用具有输入/输出特性的函数在增强系数表存储器中生成增强系数k数据 从而当输入大约为零时，输出是简单的增加值。 使用作为目标像素信号减去位于第一方向上的参考像素的信号的第一差异，通过参考增强系数表来获得增强系数k，并且与增强成比例地增加目标像素 系数k和第一个差值。 与目标像素信号减去第二和第三参考像素的信号的平均值成比例的增强系数k和第二差分，目标像素也是渐变或平滑的，它们是垂直于 目标像素的第一方向和相对两侧。 通过对位于围绕目标像素的四个方向上的每个参考像素重复该处理来校正目标像素信号，并将校正后的图像信号存储到图像存储器中。 通过对所有输入图像信号重复该处理来获得增强图像信号。

    Gray level correction apparatus
    9.
    发明授权
    Gray level correction apparatus 失效
    灰度校正装置

    公开(公告)号：US5715377A

    公开(公告)日：1998-02-03

    申请号：US504658

    申请日：1995-07-20

    申请人： Tsumoru Fukushima ,  Haruo Yamashita ,  Katsuhiro Kanamori

    发明人： Tsumoru Fukushima ,  Haruo Yamashita ,  Katsuhiro Kanamori

    IPC分类号： G06T5/40 ,  H04N1/407 ,  H04N1/60 ,  H04N1/62 ,  G03F3/08

    CPC分类号： H04N1/6086 ,  G06T5/009 ,  H04N1/4072 ,  H04N1/60 ,  H04N1/6027 ,  H04N1/62 ,  G06T2207/10016

    摘要： An apparatus for printing video images is disclosed. First the percentage of backlighting or people in the image is detected. That is, the probability of the presence of backlighting or people is detected. Then, the density gradation table is modified based on the detection result, and the presence of backlighting or the presence of people in the image is evaluated based on optical information, to select the best density gradation table from among plural density gradation tables, or to synthesize the best density gradation table. A luminance table is generated using the optimized density gradation table, and gradation correction of the image is then accomplished using that luminance table.

    摘要翻译： 公开了一种用于打印视频图像的设备。 首先检测图像中的背光或人物的百分比。 也就是说，检测到背光或人的存在的概率。 然后，基于检测结果修改浓度等级表，并且基于光信息评估图像中的背光或人的存在，从多个浓度等级表中选择最佳浓度等级表，或者从 合成最佳密度梯度表。 使用优化的浓度灰度表生成亮度表，然后使用该亮度表来实现图像的灰度校正。