公开(公告)号：US09123105B2

公开(公告)日：2015-09-01

申请号：US14346347

申请日：2012-02-17

申请人： Takeo Fujita ,  Daisuke Suzuki ,  Narihiro Matoba

发明人： Takeo Fujita ,  Daisuke Suzuki ,  Narihiro Matoba

IPC分类号： G06K9/40 ,  G06T5/00 ,  H04N5/217 ,  H04N5/357 ,  G06T5/20

CPC分类号： G06T5/002 ,  G06T5/006 ,  G06T5/20 ,  G06T2207/20024 ,  G06T2207/20182 ,  G06T2207/20192 ,  H04N5/217 ,  H04N5/3572

摘要： An image processing device (21) is provided with: a noise suppression processor (23) for creating a noise-reduced image (NRs) by executing spatial filtering on a plurality of pixels, which fall within a reference range that includes a pixel of interest, in an input image (Is); and a distortion correction processor (24) for correcting distortion by local stretching or shrinking by a magnification factor (R) corresponding to the local amount of distortion in the noise-reduced image (NRs). The reference range is dynamically changed in accordance with the magnification factor (R). Control is performed so that the reference range becomes narrower as the magnification factor (R) increases.

摘要翻译： 一种图像处理装置（21）具有：噪声抑制处理器（23），用于通过对包含感兴趣像素的参考范围内的多个像素执行空间滤波来产生噪声降低图像（NRs） ，在输入图像（Is）中; 以及失真校正处理器（24），用于通过局部拉伸或缩小对应于噪声降低图像（NRs）中的局部失真量的放大倍率（R）来校正失真。 参考范围根据放大系数（R）动态变化。 执行控制，使得参考范围随着放大因子（R）增加而变窄。

公开(公告)号：US20140226915A1

公开(公告)日：2014-08-14

申请号：US14346347

申请日：2012-02-17

申请人： Takeo Fujita ,  Daisuke Suzuki ,  Narihiro Matoba

发明人： Takeo Fujita ,  Daisuke Suzuki ,  Narihiro Matoba

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T5/006 ,  G06T5/20 ,  G06T2207/20024 ,  G06T2207/20182 ,  G06T2207/20192 ,  H04N5/217 ,  H04N5/3572

摘要： An image processing device (21) is provided with: a noise suppression processor (23) for creating a noise-reduced image (NRs) by executing spatial filtering on a plurality of pixels, which fall within a reference range that includes a pixel of interest, in an input image (Is); and a distortion correction processor (24) for correcting distortion by local stretching or shrinking by a magnification factor (R) corresponding to the local amount of distortion in the noise-reduced image (NRs). The reference range is dynamically changed in accordance with the magnification factor (R). Control is performed so that the reference range becomes narrower as the magnification factor (R) increases.

摘要翻译： 一种图像处理装置（21）具有：噪声抑制处理器（23），用于通过对包含感兴趣像素的参考范围内的多个像素执行空间滤波来产生噪声降低图像（NRs） ，在输入图像（Is）中; 以及失真校正处理器（24），用于通过局部拉伸或缩小对应于噪声降低图像（NRs）中的局部失真量的放大倍率（R）来校正失真。 参考范围根据放大系数（R）动态变化。 执行控制，使得参考范围随着放大因子（R）增加而变窄。

公开(公告)号：US08913842B2

公开(公告)日：2014-12-16

申请号：US13696191

申请日：2010-07-06

申请人： Takeo Fujita ,  Narihiro Matoba

发明人： Takeo Fujita ,  Narihiro Matoba

IPC分类号： G06K9/40 ,  G06T5/00 ,  G06T5/20

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10004 ,  G06T2207/20192

摘要： A pattern matching processing unit 10 binarizes input image data 1, compares a binarized pattern with a pattern provided for each of groups, and outputs either first information indicating a group to which a pattern that matches the binarized pattern belongs or second information indicating no match. A 0-degree direction dedicated filter 21, a 45-degree direction dedicated filter 22, a 90-degree direction dedicated filter 23, and a 135-degree direction dedicated filter 24 which are disposed correspondingly to the groups carry out smoothing processes according to the direction of an edge of the image, respectively. When the pattern matching processing unit outputs the first information, a selector 30 selects the output of either one of the filters corresponding to the group as output image data 2, whereas when the pattern matching processing unit outputs the second information, the selector outputs the input image data 1 as the output image data 2.

摘要翻译： 图案匹配处理单元10将输入图像数据2二进制化，将二值化图案与为每个组提供的图案进行比较，并且输出指示与二值化图案匹配的图案所属的组的第一信息或指示不匹配的第二信息。 与各组对应地设置的0度方向专用滤波器21，45度方向专用滤波器22，90度方向专用滤波器23以及135度方向专用滤波器24进行根据 分别是图像边缘的方向。 当图案匹配处理单元输出第一信息时，选择器30选择与该组对应的任何一个滤波器的输出作为输出图像数据2，而当图案匹配处理单元输出第二信息时，选择器输出输入 图像数据1作为输出图像数据2。

公开(公告)号：US20130051664A1

公开(公告)日：2013-02-28

申请号：US13696191

申请日：2010-07-06

申请人： Takeo Fujita ,  Narihiro Matoba

发明人： Takeo Fujita ,  Narihiro Matoba

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10004 ,  G06T2207/20192

摘要： A pattern matching processing unit 10 binarizes input image data 1, compares a binarized pattern with a pattern provided for each of groups, and outputs either first information indicating a group to which a pattern that matches the binarized pattern belongs or second information indicating no match. A 0-degree direction dedicated filter 21, a 45-degree direction dedicated filter 22, a 90-degree direction dedicated filter 23, and a 135-degree direction dedicated filter 24 which are disposed correspondingly to the groups carry out smoothing processes according to the direction of an edge of the image, respectively. When the pattern matching processing unit outputs the first information, a selector 30 selects the output of either one of the filters corresponding to the group as output image data 2, whereas when the pattern matching processing unit outputs the second information, the selector outputs the input image data 1 as the output image data 2.

摘要翻译： 图案匹配处理单元10将输入图像数据2二进制化，将二值化图案与为每个组提供的图案进行比较，并且输出指示与二值化图案匹配的图案所属的组的第一信息或指示不匹配的第二信息。 与各组对应地设置的0度方向专用滤波器21，45度方向专用滤波器22，90度方向专用滤波器23以及135度方向专用滤波器24进行根据 分别是图像边缘的方向。 当图案匹配处理单元输出第一信息时，选择器30选择与该组对应的任何一个滤波器的输出作为输出图像数据2，而当图案匹配处理单元输出第二信息时，选择器输出输入 图像数据1作为输出图像数据2。

公开(公告)号：US07440010B2

公开(公告)日：2008-10-21

申请号：US10535499

申请日：2003-09-30

申请人： Takeo Fujita ,  Narihiro Matoba

发明人： Takeo Fujita ,  Narihiro Matoba

IPC分类号： H04N5/228

CPC分类号： H04N5/232 ,  H04N1/00 ,  H04N1/2112 ,  H04N1/212 ,  H04N1/2137 ,  H04N1/2158 ,  H04N5/772 ,  H04N5/907 ,  H04N9/804 ,  H04N19/124 ,  H04N19/149

摘要： An image pickup apparatus includes a characteristic value calculation circuit 16 for extracting a characteristic value used for predicting an amount of codes to be generated at a time of compressing a video signal acquired by a solid state image pickup device from the video signal, and a compression coefficient control circuit 17 for controlling a compression coefficient which is used by an image compression unit 18 based on the characteristic value acquired by the characteristic value calculation circuit 16. The compression coefficient control circuit uses the characteristic value acquired by the characteristic value calculation circuit 16 at a time of allowing users to check an image to be picked-up before picking up an image, and determines the compression coefficient at a time of picking up an image.

摘要翻译： 图像拾取装置包括特征值计算电路16，用于提取用于预测在从视频信号压缩由固态图像拾取装置获取的视频信号时要生成的代码量的特征值，以及压缩 系数控制电路17，用于基于由特征值计算电路16获取的特性值来控制由图像压缩单元18使用的压缩系数。 压缩系数控制电路使用由特征值计算电路16获取的特征值，在允许用户在拍摄图像之前检查要拍摄的图像，并且确定拾取图像时的压缩系数 图片。

公开(公告)号：US08478066B2

公开(公告)日：2013-07-02

申请号：US10577482

申请日：2003-10-31

申请人： Takeo Fujita ,  Narihiro Matoba

发明人： Takeo Fujita ,  Narihiro Matoba

IPC分类号： G06K9/40 ,  H04N9/64 ,  H04N5/202 ,  H04N1/40 ,  G09G1/14 ,  G09G3/28 ,  G09G5/00 ,  G09G5/02 ,  G09G5/10

CPC分类号： H04N5/3572

摘要： An image-correction method is realized, in which, by utilizing a table having small storage area, high-accuracy shading correction can be implemented, that does not undergo deterioration of performance, even when shading properties dynamically change.An image-correction method according to the present invention includes a distance calculating step of calculating the distance between the coordinates of an image-constituting pixel and predetermined reference coordinates, a distance-correction value calculating step of calculating a distance-correction value, by inputting for the variable in an N-order function (N being a positive integer) the distance that has been calculated in the distance calculating step, a correction coefficient calculating step of calculating, based on a table that represents correspondences between distance-correction values and correction coefficients, a correction coefficient corresponding to the distance-correction value that has been calculated in the distance-correction value calculating step, and a pixel signal correcting step of correcting a signal for the pixel, based on the correction coefficient that has been calculated in the correction coefficient calculating step.

摘要翻译： 实现了一种图像校正方法，其中通过利用具有小存储区域的表，即使在阴影特性动态地改变时，也可以实现不会导致性能下降的高精度遮蔽校正。 根据本发明的图像校正方法包括：距离计算步骤，计算图像构成像素的坐标与预定基准坐标之间的距离;距离校正值计算步骤，通过输入计算距离校正值; 对于N次函数（N为正整数）中的变量，在距离计算步骤中计算出的距离，校正系数计算步骤，基于表示距离校正值和校正值之间的对应关系的表 系数，对应于在距离校正值计算步骤中计算的距离校正值的校正系数，以及像素信号校正步骤，用于根据在该距离校正值计算步骤中计算出的校正系数 校正系数计算步骤。

公开(公告)号：US07683941B2

公开(公告)日：2010-03-23

申请号：US10567251

申请日：2003-10-31

申请人： Masumi Dakemoto ,  Narihiro Matoba ,  Takeo Fujita

发明人： Masumi Dakemoto ,  Narihiro Matoba ,  Takeo Fujita

IPC分类号： H04N9/73

CPC分类号： H04N5/243 ,  H04N5/2357 ,  H04N9/045

摘要： As to an image signal of a solid-state image pickup device, an average value calculating unit calculates average values of pixel values of individual color components constituting an image of each frame. A gain calculating unit calculates, for the number of frames in one cycle of flicker generation, maximum values of the average values of the pixel values of the individual color components of the image, which average values are calculated by the average value calculating unit; calculates, according to the maximum values, gains for adjusting to a maximum range the average values of the pixel values of the individual color components constituting other images; and outputs the gains as gains of the individual color components to be supplied to a signal amplifying unit. The signal amplifying unit amplifies all pixels of color components of the image according to the gains of the individual color components supplied.

摘要翻译： 对于固态图像拾取装置的图像信号，平均值计算单元计算构成每帧的图像的各个颜色分量的像素值的平均值。 增益计算单元针对闪烁生成的一个周期中的帧数计算图像的各个颜色分量的像素值的平均值的最大值，该平均值由平均值计算单元计算; 根据最大值，根据构成其他图像的各个颜色分量的像素值的平均值来调整最大范围的增益; 并输出增益作为要提供给信号放大单元的各个颜色分量的增益。 信号放大单元根据提供的各个颜色分量的增益来放大图像的颜色分量的所有像素。

公开(公告)号：US07034870B2

公开(公告)日：2006-04-25

申请号：US09921875

申请日：2001-08-06

申请人： Hidetada Nagaoka ,  Narihiro Matoba ,  Takeo Fujita ,  Hiroaki Sugiura ,  Tetsuya Kuno

发明人： Hidetada Nagaoka ,  Narihiro Matoba ,  Takeo Fujita ,  Hiroaki Sugiura ,  Tetsuya Kuno

IPC分类号： H04N9/73 ,  H04N11/20 ,  H04N5/222 ,  H01L27/00

CPC分类号： H04N5/2357 ,  H04N5/235 ,  H04N5/2353 ,  H04N5/243

摘要： An image pickup apparatus includes a solid-state imaging device, an accumulating section, first and second imaging parameter setting sections, a calculating section, a flicker detecting section, and a switching section. The accumulating section calculates a projection output value of a predetermined line in a frame. The calculating section calculates inter-frame variations of the projection output values, and calculates a flicker index from the variations of a predetermined number of frames. The flicker detecting section detects the flicker from the index, and controls the switching section in response to the detection result of the flicker, so that the switching section selects either the setting signals from the first imaging parameter setting section or the setting signals from the second imaging parameter setting section. Thus, the charge storage time of the solid-state imaging device is set at either an integer multiple of 1/100 second or an integer multiple of 1/120 second in response to the frequency (50 Hz or 60 Hz) of a power supply of the fluorescent lighting. The image pickup apparatus can solve a problem of a conventional apparatus in that it is difficult for the conventional apparatus to suppress the flicker in regions where the frequency of the power supply differ from each other.

摘要翻译： 图像拾取装置包括固态成像装置，累积部分，第一和第二成像参数设置部分，计算部分，闪烁检测部分和切换部分。 累积部分计算帧中的预定行的投影输出值。 计算部分计算投影输出值的帧间变化，并根据预定帧数的变化计算闪烁指数。 闪烁检测部分根据指标检测闪烁，并且响应于闪烁的检测结果来控制切换部分，使得切换部分选择来自第一成像参数设置部分的设置信号或来自第二成像参数设置部分的设置信号 成像参数设置部分。 因此，根据电源的频率（50Hz或60Hz），将固态成像装置的电荷存储时间设定为1/100秒的整数倍或1/120秒的整数倍 的荧光灯。 图像拾取装置可以解决常规装置的问题，因为传统装置难以抑制电源频率彼此不同的区域中的闪烁。

公开(公告)号：US20080273812A1

公开(公告)日：2008-11-06

申请号：US10577482

申请日：2003-10-31

申请人： Takeo Fujita ,  Narihiro Matoba

发明人： Takeo Fujita ,  Narihiro Matoba

IPC分类号： H04N5/217 ,  G06K9/36

CPC分类号： H04N5/3572

摘要： An image correcting method capable of performing highly accurate shading correction using a table having a small storage area without causing any deterioration of performance even when the shading characteristics vary dynamically. The image correcting method comprises a step for calculating the distance between the coordinates of a pixel constituting an image and a predetermined reference coordinates, a step for calculating a distance correction value by inputting the distance calculated at the distance calculating step to the variable of an N-order function (N is an integer of 1 or above), a step for calculating a correction coefficient corresponding to the distance correction value calculated at the distance correction value calculating step based on a table representing the correspondence between the distance correction value and the correction coefficient, and a step for correcting the signal of the pixel based on the correction coefficient calculated at the correction coefficient calculating step.

摘要翻译： 一种能够使用具有小存储区域的表执行高精度着色校正的图像校正方法，即使当阴影特性动态变化时也不会导致性能的任何劣化。 图像校正方法包括：计算构成图像的像素的坐标与预定基准坐标之间的距离的步骤;通过将在距离计算步骤计算的距离输入到N的变量来计算距离校正值的步骤 - 顺序函数（N是1以上的整数），根据表示距离校正值与校正值的对应关系的表，计算与在距离校正值计算步骤中算出的距离校正值对应的校正系数的步骤 系数，以及基于在校正系数计算步骤计算出的校正系数来校正像素的信号的步骤。

公开(公告)号：US20080225147A1

公开(公告)日：2008-09-18

申请号：US10567251

申请日：2003-10-31

申请人： Masumi Dakemoto ,  Narihiro Matoba ,  Takeo Fujita

发明人： Masumi Dakemoto ,  Narihiro Matoba ,  Takeo Fujita

IPC分类号： H04N5/335

CPC分类号： H04N5/243 ,  H04N5/2357 ,  H04N9/045

摘要： For an image signal of a solid-state image pickup element, average value calculation means calculates an average value of pixel values for the respective color components constituting an image of each frame. Gain calculation means calculates a maximum value from the average values of the pixel values of the respective color components of the image calculated by the average value calculation means for the number of frames for one cycle of flicker generation, calculates, according to these maximum values, a gain for adjusting the average value of the pixel value of the respective components constituting the other image to a maximum width, and outputs it as a gain of each color component to be given to signal amplification means. The signal amplification means amplifies all the pixels of the color components of the image according to the gain of the respective color components given.

摘要翻译： 对于固态图像拾取元件的图像信号，平均值计算装置计算构成每帧的图像的各个颜色分量的像素值的平均值。 增益计算装置根据平均值计算装置针对一个闪烁生成周期的帧数计算的图像的各个颜色分量的像素值的平均值计算最大值，根据这些最大值， 用于将构成其他图像的各个分量的像素值的平均值调整到最大宽度的增益，并将其作为要被提供给信号放大装置的每个颜色分量的增益输出。 信号放大装置根据给出的各个颜色分量的增益来放大图像的颜色分量的所有像素。