公开(公告)号：US10048808B2

公开(公告)日：2018-08-14

申请号：US14940484

申请日：2015-11-13

申请人： Koji Masuda ,  Yasuhiro Nihei ,  Takeshi Ueda ,  Masahiro Itoh ,  Shu Takahashi ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shiori Ohta

发明人： Koji Masuda ,  Yasuhiro Nihei ,  Takeshi Ueda ,  Masahiro Itoh ,  Shu Takahashi ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shiori Ohta

IPC分类号： G06F3/042 ,  G06F3/00 ,  G06F3/03 ,  H04N9/31 ,  H04N13/02 ,  H04N13/00

摘要： An input operation detection device to detect input operation input to an image includes a first and second imaging parts and a processor to detect input operation based on data acquired by the first and second imaging parts. The image is divided into first and second images. The optical axes of imaging optical systems of the first and second imaging parts intersect with the image at points on the same side as installation position sides of the corresponding imaging parts with respect to the center of the corresponding images.

公开(公告)号：US20180136330A1

公开(公告)日：2018-05-17

申请号：US15808968

申请日：2017-11-10

申请人： Yasuhiro Nihei ,  Toshishige Fujii ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Yoichi Ichikawa ,  Masahiro Itoh

发明人： Yasuhiro Nihei ,  Toshishige Fujii ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Yoichi Ichikawa ,  Masahiro Itoh

IPC分类号： G01S17/10 ,  G01S7/48 ,  G01S7/486

摘要： An distance measurement apparatus includes a light source to emit irradiation light, circuitry to output, to the light source, a first current that changes in accordance of light-emission timing information defining at least turn-on timing of the light source, and a second current that does not change in accordance of the light-emission timing information, a sensor to detect reflection light reflected from an object irradiated with the irradiation light emitted from the light source. The circuitry calculates a distance to the object based on a detection amount of the reflection light detected by the sensor.

公开(公告)号：US20170199271A1

公开(公告)日：2017-07-13

申请号：US15403594

申请日：2017-01-11

申请人： Yasuhiro NIHEI ,  Koji MASUDA ,  Takeshi OGAWA ,  Hiroaki TANAKA ,  Shu TAKAHASHI ,  Masahiro ITOH ,  Yoichi ICHIKAWA

发明人： Yasuhiro NIHEI ,  Koji MASUDA ,  Takeshi OGAWA ,  Hiroaki TANAKA ,  Shu TAKAHASHI ,  Masahiro ITOH ,  Yoichi ICHIKAWA

IPC分类号： G01S7/48 ,  B60Q11/00 ,  G01S17/93 ,  H05B37/02 ,  G01S17/10

CPC分类号： B60Q11/005 ,  G01S7/4815 ,  G01S7/484 ,  G01S7/497 ,  G01S17/10 ,  G01S17/89 ,  G01S17/936 ,  H05B33/0806 ,  H05B37/0227

摘要： A distance measurement device includes a projection optical system, a light-receiving system to receive light projected from projection optical system and reflected by an object; and a correction system to correct a difference in timing of light emission between the plurality of light sources. The projection optical system includes a plurality of light sources and a plurality of drive circuits to drive the plurality of light sources.

公开(公告)号：US20160274520A1

公开(公告)日：2016-09-22

申请号：US15068972

申请日：2016-03-14

申请人： Takashi SOMA ,  Takuroh SONE ,  Hideyuki KlHARA ,  Naoto WATANABE ,  Takeshi OGAWA

发明人： Takashi SOMA ,  Takuroh SONE ,  Hideyuki KlHARA ,  Naoto WATANABE ,  Takeshi OGAWA

IPC分类号： G03G15/01

CPC分类号： G03G15/5058 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An electrophotographic image forming apparatus for forming an image in accordance with image information includes: an image forming unit configured to form an image that is uniform in area percentage of each of primary colors and a secondary color on an intermediate transfer belt; a measurer configured to measure amounts corresponding to density distribution of residual toner left on the intermediate transfer belt, on which the image uniform in area percentage of each of the primary colors and the secondary color is formed and from which toner is transferred onto a recording medium, in the main-scanning direction; and a corrector configured to correct a tone value of the image information so as to reduce density nonuniformity of a streak region observed in the density distribution in the main-scanning direction using the amounts measured by the measurer.

摘要翻译： 根据图像信息形成图像的电子照相图像形成装置包括：图像形成单元，被配置为在中间转印带上形成均匀的各原色和次色的面积百分比的图像; 测量器，其被配置为测量与中间转印带上残留的调色剂的密度分布相对应的量，其上形成每个基色和次色的面积百分比的图像均匀，并且调色剂从其转印到记录介质上 ，主扫描方向; 以及校正器，其被配置为校正图像信息的色调值，以便使用由测量器测量的量来减少在主扫描方向上的浓度分布中观察到的条纹区域的浓度不均匀性。

公开(公告)号：US20140125847A1

公开(公告)日：2014-05-08

申请号：US14131377

申请日：2012-08-07

申请人： Takayuki Yasuda ,  Hiroshi Ogino ,  Takeshi Ogawa

发明人： Takayuki Yasuda ,  Hiroshi Ogino ,  Takeshi Ogawa

IPC分类号： H04N5/367

CPC分类号： H04N5/367 ,  H04N9/045 ,  H04N2209/045

摘要： A direction being across the defective pixel and along which pixels used to calculate a signal level of a defective pixel are located, is determined. A ratio between signal levels of pixels that are adjacent to the defective pixel and that have a different color from the defective pixel, and signal levels of pixels that are adjacent to pixels being located along the determine direction with respect to the defective pixel and having the same color as the defective pixel and that have a different color from the defective pixel, is acquired. A value obtained by multiplying an average value of the signal levels of the pixels used to calculate the signal level of the defective pixel by the calculated ratio is output as the signal level of the defective pixel.

摘要翻译： 确定位于缺陷像素之间的方向，并且被定位用于计算缺陷像素的信号电平的像素。 与缺陷像素相邻并且具有与缺陷像素不同的颜色的像素的信号电平之间的比率以及与沿着与缺陷像素相关的确定方向定位的像素相邻的像素的信号电平，并具有 获得与缺陷像素相同的颜色并且与缺陷像素具有不同颜色的颜色。 输出通过将用于计算缺陷像素的信号电平的像素的信号电平的平均值乘以计算出的比率而获得的值作为缺陷像素的信号电平。

公开(公告)号：US08670063B2

公开(公告)日：2014-03-11

申请号：US13325667

申请日：2011-12-14

申请人： Daisuke Wakamiya ,  Takeshi Ogawa

发明人： Daisuke Wakamiya ,  Takeshi Ogawa

IPC分类号： H04N5/232

CPC分类号： H04N5/23212 ,  H04N5/3696

摘要： A focus detection apparatus comprises: an image sensor that receives images that are formed by light that passes through different pupil regions of a photographing optical system including a focus lens, and outputs a pair of image signals; a control unit that controls to acquire a pair of image signals from the image sensor at first and second lens positions of the focus lens; a conversion unit that, by multiplying a shift amount between a pair of images representing the pair of image signals by a conversion coefficient, converts the shift amount to a defocus amount; and a calculation unit that calculates the conversion coefficient based on displacement amounts of respective ones of the pair of images representing the pair of image signals acquired at the first and second lens positions, and a displacement amount of the focus lens from the first lens position to the second lens position.

摘要翻译： 焦点检测装置包括：图像传感器，其接收由穿过包括聚焦透镜的拍摄光学系统的不同瞳孔区域的光形成的图像，并输出一对图像信号; 控制单元，其控制在所述聚焦透镜的第一和第二透镜位置处获取来自所述图像传感器的一对图像信号; 转换单元，通过将表示所述一对图像信号的一对图像之间的偏移量乘以转换系数，将所述偏移量转换为散焦量; 以及计算单元，其基于表示在第一和第二透镜位置处获取的一对图像信号的一对图像中的各个图像的位移量以及聚焦透镜从第一透镜位置到第二透镜位置的位移量来计算转换系数 第二个镜头位置。

公开(公告)号：US08634136B2

公开(公告)日：2014-01-21

申请号：US13055584

申请日：2010-03-25

申请人： Kazunobu Ogawa ,  Takeshi Ogawa ,  Kenji Ohki ,  Tetsuya Sadahiro

发明人： Kazunobu Ogawa ,  Takeshi Ogawa ,  Kenji Ohki ,  Tetsuya Sadahiro

IPC分类号： G03B21/56

CPC分类号： G03B21/62 ,  G02B1/14 ,  G02B5/0231 ,  G02B5/0278

摘要： There is provided a screen that, as a screen suitable for an interactive board, can output video image light incident obliquely from the back surface side to a viewer side to display a reflection-free image and, at the same time, can realize easy handwriting on the screen surface on the viewer side. To this end, a transmission screen for an interactive board is provided that comprises at least a Fresnel lens sheet comprising a prism part on its incident light side, a light diffusing member provided on the Fresnel lens on its surface side remote from the prism part, and a hard coat layer provided on the outgoing light side of the light diffusing member.

摘要翻译： 提供了一种屏幕，作为适用于交互式电路板的屏幕，可以将从背面侧倾斜地入射到观看者侧的视频图像光输出以显示无反射图像，并且同时可以实现轻松的手写 在观察者侧的屏幕表面上。 为此，提供了一种用于交互式电路板的透射屏幕，其至少包括在其入射光侧具有棱镜部分的菲涅尔透镜片，设置在其远离棱镜部分的表面侧的菲涅尔透镜上的光漫射部件， 以及设置在光漫射构件的出射光侧的硬涂层。

公开(公告)号：US08547597B2

公开(公告)日：2013-10-01

申请号：US12719255

申请日：2010-03-08

申请人： Takeshi Ogawa

发明人： Takeshi Ogawa

IPC分类号： H04N1/405

CPC分类号： B41J2/2114 ,  B41J11/0015 ,  G03G2215/00063 ,  G03G2215/00067 ,  G03G2215/0132

摘要： Dot patterns formed by two different half-tone processes of the plurality of tone processes for each color of CMYK and formed with/without the presence and absence of transparent toner overlap are created and test patches obtained by collecting the dot patterns are printed. The printed test patches are read to generate image data, and tone correction arithmetic is performed on the basis of the image data. Concentration in the case of the presence of transparent toner in a different half-tone process is predicted based on the dot patterns with the transparent toner overlap in the test patches and concentration in the case of the absence of transparent toner in a different half-tone process is predicted based on the dot patterns without the transparent toner overlap in the test patches. The tone correction arithmetic is performed based on the predicted values.

摘要翻译： 创建由CMYK的每种颜色的多个色调处理的两个不同的半色调处理形成的点图案，并且形成有/不存在和不存在透明调色剂重叠，并且打印通过收集点图案获得的测试贴片。 读取打印的测试贴片以产生图像数据，并且基于图像数据执行色调校正算术。 在不同的半色调处理中存在透明调色剂的情况下，基于在测试片中透明调色剂重叠的点图案和在不同半色调中不存在透明调色剂的情况下的浓度来预测浓度 基于点图案预测过程，而在测试贴片中没有透明调色剂重叠。 基于预测值进行色调校正运算。

公开(公告)号：US20120162488A1

公开(公告)日：2012-06-28

申请号：US13315987

申请日：2011-12-09

申请人： Takeshi Ogawa

发明人： Takeshi Ogawa

IPC分类号： H04N5/217

CPC分类号： H04N5/367

摘要： An image processing apparatus includes a first defect interpolation unit that interpolates a defective pixel using a pixel value of a first pixel near a specific first pixel or a pixel value of a second pixel near a specific second pixel, a second defect interpolation unit that interpolates the defective pixel using a rate of pixel values of a first pixel and a second pixel in the same micro lens near the specific first pixel and the specific second pixel, an in-focus level evaluation unit that evaluates an in-focus level using outputs of the first and second pixels, a synthesis rate switching unit that switches a synthesis rate of outputs of the first and second defect interpolation units, and a signal processing unit that generates a shot image using an output of the synthesis rate switching unit.

摘要翻译： 图像处理装置包括第一缺陷插值单元，其使用特定第一像素附近的第一像素的像素值或特定第二像素附近的第二像素的像素值内插不良像素;第二缺陷插值单元， 使用在特定第一像素和特定第二像素附近的相同微透镜中的第一像素和第二像素的像素值的比率的缺陷像素;焦点内级别评估单元，其使用 第一和第二像素，合成速率切换单元，其切换第一和第二缺陷插值单元的输出的合成率;以及信号处理单元，其使用合成速率切换单元的输出来生成镜头图像。

公开(公告)号：US08208751B2

公开(公告)日：2012-06-26

申请号：US12591143

申请日：2009-11-10

申请人： Takeshi Ogawa

发明人： Takeshi Ogawa

IPC分类号： G06K9/40

CPC分类号： H04N1/4052 ,  H04N1/4057 ,  H04N1/52

摘要： An image processing apparatus, which quantizes M-level image data into N levels (M>N>2) using a multi-level error diffusion method or a multi-level average-error minimization method, includes a γ-conversion unit that performs γ-conversion on an integer part in a real number value after ideal gradation conversion that aims to obtain desired density or brightness, an area-gradation expressing unit that expresses a decimal part in the real number value by area gradation, an integerization unit that adds two values obtained through the γ-conversion and the area gradation to obtain an integerized value corresponding to the ideal gradation conversion, a correction unit that adds a peripheral error to the integerized value, and a threshold setting unit that sets an N−1-type threshold value for a value corresponding to the ideal gradation conversion, wherein the conversion to N levels is performed by using the correction value and the N−1-type threshold value.

摘要翻译： 使用多级误差扩散方法或多级平均误差最小化方法将M级图像数据量化为N级（M> N> 2）的图像处理装置包括：γ转换单元，其执行γ 在旨在获得期望的浓度或亮度的理想灰度转换之后的实数值的整数部分上的转换，表示实数值乘以区域灰度的小数部分的区域灰度表示单元，将两个 通过γ转换获得的值和区域灰度以获得对应于理想灰度转换的整数值，将整数值加上周边误差的校正单元和设置N-1型阈值的阈值设置单元 对应于理想灰度转换的值的值，其中通过使用校正值和N-1型阈值来执行到N电平的转换。