公开(公告)号：US06201566B1

公开(公告)日：2001-03-13

申请号：US09045414

申请日：1998-03-19

申请人： Shigeru Harada ,  Junji Kagita ,  Yoshihito Ohsawa ,  Kazuhiko Fujihara

发明人： Shigeru Harada ,  Junji Kagita ,  Yoshihito Ohsawa ,  Kazuhiko Fujihara

IPC分类号： H04N1304

CPC分类号： G02B27/26 ,  H04N13/122 ,  H04N13/139 ,  H04N13/15 ,  H04N13/161 ,  H04N13/167 ,  H04N13/189 ,  H04N13/194 ,  H04N13/239 ,  H04N13/257 ,  H04N13/261 ,  H04N13/296 ,  H04N13/324 ,  H04N13/334 ,  H04N13/337 ,  H04N13/341 ,  H04N13/344 ,  H04N13/363 ,  H04N13/398 ,  H04N19/597 ,  H04N2013/0081

摘要： When a 2-dimensional video image is displayed, a front/rear feeling and a stereoscopic feeling are enabled to be expressed. A detection signal Sd is formed by a high pass filter 25 and a rectifying circuit 26 in accordance with an amount of edge information. The detection signal Sd is supplied to a variable delay circuit 14L. A detection signal Sd′ is supplied to a variable delay circuit 14R. The variable delay circuits 14L and 14R are controlled in accordance with the edge information amount so that a video image for the left eye and a video image for the right eye are moved in the opposite directions. Thus, an imaginary image is synthesized to the front or rear side from a display plane. The left and right video images are displayed on CRTs 20L and 20R. The projection light passes through a horizontal polarizing filter 21L and a vertical polarizing filter 21R and the left and right video images are overlapped on a screen 22. The left and right video images are separately observed by glasses 23 having polarizing filters 24L and 24R and a stereoscopic feeling is enhanced.

摘要翻译： 当显示2维视频图像时，可以表达前/后感和立体感。 检测信号Sd由高通滤波器25和整流电路26根据边缘信息量形成。 检测信号Sd被提供给可变延迟电路14L。 检测信号Sd'被提供给可变延迟电路14R。 根据边缘信息量控制可变延迟电路14L和14R，使得用于左眼的视频图像和用于右眼的视频图像在相反方向上移动。 因此，虚拟图像从显示面合成到前侧或后侧。 左右视频图像显示在CRT 20L和20R上。 投影光通过水平偏振滤光器21L和垂直偏振滤光器21R，并且左右视频图像重叠在屏幕22上。左眼和右视频图像由具有偏振滤光器24L和24R的眼镜23分开观察， 立体感增强。

公开(公告)号：US06476820B1

公开(公告)日：2002-11-05

申请号：US09046501

申请日：1998-03-23

申请人： Shigeru Harada ,  Junji Kagita

发明人： Shigeru Harada ,  Junji Kagita

IPC分类号： G09G502

CPC分类号： H04N19/597 ,  G09G5/02 ,  H04N5/44 ,  H04N5/7491 ,  H04N9/31 ,  H04N9/643 ,  H04N9/68 ,  H04N13/10 ,  H04N13/15 ,  H04N13/161 ,  H04N13/167 ,  H04N13/194 ,  H04N13/324 ,  H04N13/337 ,  H04N13/341 ,  H04N13/363 ,  H04N13/398 ,  H04N21/431 ,  H04N21/816

摘要： A signal Y outputted from a Y/C separating circuit is supplied to first and second matrices. Signals R-Y and B-Y are supplied to the first matrix through a gain control amplifier (GCA) and are also supplied to the second matrix. The signals Y, R-Y, and B-Y are converted into three primary color signals R, G, and B by the second matrix. From the signals R, G, and B, a skin color component is detected by a skin color detecting circuit and Eskin is outputted. On the basis of Eskin, color components other than the skin color are detected by a color component detecting circuit and Eother is outputted. Eother−Eskin is supplied as a control voltage to the GCA. Gains for the signals R-Y and B-Y are controlled. When the video signal indicates the skin color component, the control voltage is set to 0 and the gain is set to 1. When the video signal indicates a color component other than the skin color component, Eother is generated, the control voltage rises, and the gain is increased. The colors other than the skin color are emphasized and the color contrast is more naturally enhanced.

摘要翻译： 从Y / C分离电路输出的信号Y被提供给第一和第二矩阵。 信号R-Y和B-Y通过增益控制放大器（GCA）提供给第一矩阵，并且还被提供给第二矩阵。 信号Y，R-Y和B-Y被第二矩阵转换成三原色信号R，G和B。 从信号R，G和B中，皮肤颜色检测电路检测肤色成分，输出Eskin。 在Eskin的基础上，通过颜色成分检测电路检测肤色以外的颜色成分，并输出Eother。 Eother-Eskin作为控制电压提供给GCA。 控制信号R-Y和B-Y的增益。 当视频信号表示肤色成分时，将控制电压设定为0，将增益设定为1.当视频信号表示肤色成分以外的颜色成分时，产生Eother，控制电压上升， 增益增加。 强调肤色以外的颜色，颜色对比度更加自然增强。

公开(公告)号：US06259426B1

公开(公告)日：2001-07-10

申请号：US09296106

申请日：1999-04-21

申请人： Shigeru Harada ,  Junji Kagita ,  Yoshihito Osawa ,  Kazuhiko Fujihara

发明人： Shigeru Harada ,  Junji Kagita ,  Yoshihito Osawa ,  Kazuhiko Fujihara

IPC分类号： G09G500

CPC分类号： H04N13/261 ,  H04N13/122 ,  H04N13/337

摘要： A stereoscopic feeling can be easily emphasized by properly applying seven items of: a front/rear feeling and depth feeling circuit 14 constructed by a front/rear feeling to shift a position of an image in the horizontal direction on the basis of edge information of a video signal and add to a binocular parallax and a depth feeling to set a center fusion image plane to a position behind a display surface; a glossy feeling and contrast emphasizing circuit 15 for detecting a glossy portion of the video signal and emphasizing a contrast of a single eye and both eyes in the glossy portion; a V aperture control and coring sharpness circuit 16 constructed by a vertical aperture control to raise frequencies of a middle low band or higher at a change point in the vertical direction and a coring sharpness to give a sharpness to only an edge having a large amplitude and high frequency components; and a color emphasizing circuit 17 for emphasizing color contrasts of colors other than a skin color.

摘要翻译： 通过适当地应用以下七个项目，可以容易地强调立体感：通过前/后感觉构成的前后感觉和深度感觉电路14，其基于边缘信息在水平方向上移动图像的位置 视频信号，并添加到双眼视差和深度感觉以将中心融合图像平面设置到显示表面后面的位置; 光泽感和对比度强调电路15，用于检测视频信号的光泽部分，并强调光线部分中单眼和双眼的对比度; 通过垂直孔径控制构造的V孔径控制和取芯锐度电路16，以在垂直方向的变化点上提高中低频带的频率或更高的频率，以及取芯锐度，以仅向具有大振幅的边缘提供清晰度， 高频元件; 以及用于强调皮肤颜色以外的颜色的颜色对比度的增色电路17。

公开(公告)号：US06466255B1

公开(公告)日：2002-10-15

申请号：US09482086

申请日：2000-01-13

申请人： Junji Kagita ,  Shigeru Harada

发明人： Junji Kagita ,  Shigeru Harada

IPC分类号： H04H1300

CPC分类号： G06T7/11 ,  G06T2207/10012 ,  H04N13/15 ,  H04N13/161 ,  H04N13/167 ,  H04N13/189 ,  H04N13/194 ,  H04N13/239 ,  H04N13/257 ,  H04N13/261 ,  H04N13/286 ,  H04N13/296 ,  H04N13/324 ,  H04N13/337 ,  H04N13/363 ,  H04N13/398 ,  H04N19/597 ,  H04N2013/0077 ,  H04N2013/0081 ,  H04N2013/0085 ,  H04N2013/0092 ,  H04N2013/0096

摘要： In a foreground/background discriminating circuit based on focusing, a leading edge of a boundary portion is detected from a video signal and a parallax control signal is outputted on the basis of the detected leading edge. Similarly, in foreground/background discriminating circuits based on color differences and based on a luminance, a chroma component and a luminance component of the video signal are detected and parallax control signals are generated on the basis of the detected chroma and luminance components, respectively. In a multiplier, the parallax control signals generated from the foreground/background discriminating circuits are multiplied. In a parallax limiting circuit, a delay amount control signal for a left video signal and a delay amount control signal for a right video signal are formed in a manner such that a binocular parallax amount lies within a predetermined value and within a range of an amount such that the existence of the parallax is recognized clearly.

摘要翻译： 在基于聚焦的前景/背景鉴别电路中，根据视频信号检测边界部分的前沿，并且基于检测到的前沿输出视差控制信号。 类似地，在基于色差和基于亮度的前景/背景识别电路中，检测视频信号的色度分量和亮度分量，并且基于检测到的色度和亮度分量生成视差控制信号。 在乘法器中，将从前景/背景识别电路产生的视差控制信号相乘。 在视差限制电路中，形成用于左视频信号的延迟量控制信号和用于右视频信号的延迟量控制信号，使得双目视差量位于预定值内并在量的范围内 使得视差的存在被清楚地识别。

公开(公告)号：US20130169469A1

公开(公告)日：2013-07-04

申请号：US13811966

申请日：2012-05-23

申请人： Shinji Mitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

发明人： Shinji Mitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

IPC分类号： G01S13/86 ,  G01S13/93 ,  B60R1/00

CPC分类号： G01S13/867 ,  B60R1/00 ,  B60R2300/802 ,  G01S13/931 ,  G06T1/0007

摘要： A dump truck includes a body and a plurality of cameras. The body includes an upper deck and a main frame disposed in a longitudinal direction. The cameras are configured and arranged to obtain images to be combined to generate a bird's-eye image to monitor a periphery of the dump truck. The cameras include a front camera, a rear camera and side cameras. The front camera is disposed at the front of the upper deck to obtain an image of an area in front of the body. The rear camera is disposed at a rear end of the main frame to obtain an image of an area in rear of the body. The side cameras are respectively provided on left and right sides of the upper deck to obtain images of an area between diagonally to the front and diagonally to the rear of the body.

摘要翻译： 自卸车包括主体和多个照相机。 主体包括沿纵向设置的上甲板和主框架。 相机被配置和布置成获得要组合的图像以产生鸟瞰图像以监视自卸车的周边。 相机包括前置摄像头，后置摄像头和侧面摄像头。 前置摄像机设置在上甲板的前部，以获得身体前方区域的图像。 后置摄像机设置在主框架的后端，以获得身体后方的区域的图像。 侧摄像机分别设置在上甲板的左侧和右侧，以获得在对角线与前部和对角线与身体后部之间的区域的图像。

公开(公告)号：US20130141581A1

公开(公告)日：2013-06-06

申请号：US13814192

申请日：2012-05-24

申请人： Shinji Mitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

发明人： Shinji Mitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

IPC分类号： B60Q1/00 ,  H04N7/00

CPC分类号： B60Q1/00 ,  B60R1/00 ,  B60R2300/301 ,  B60R2300/607 ,  H04N7/002

摘要： A periphery monitoring apparatus for a work vehicle includes a plurality of obstacle detection sensors, a warning region setting section and a warning section. The obstacle detection sensors are mounted on the work vehicle, and each of the obstacle detection sensors is configured to determine a relative position of an obstacle with regard to the work vehicle by detecting the obstacle in the surroundings of the work vehicle. The warning region setting section is configured to set a warning region, where it is necessary to warn a driver of a presence of the obstacle, according to a movement state of the work vehicle. The warning section is configured to warn a driver that the relative position of the obstacle is positioned in the warning region.

摘要翻译： 作业车辆的周边监视装置包括多个障碍物检测传感器，警告区域设定部和警告部。 障碍物检测传感器安装在作业车辆上，并且每个障碍物检测传感器被构造成通过检测作业车辆周围的障碍物来确定障碍物相对于作业车辆的相对位置。 所述警告区域设定部被配置为根据所述作业车辆的移动状态来设定需要警告驾驶员所述障碍物的存在的警告区域。 警告部分被配置为警告驾驶员障碍物的相对位置位于警告区域中。

公开(公告)号：US20130120579A1

公开(公告)日：2013-05-16

申请号：US13811475

申请日：2012-05-23

申请人： Shinji MIitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

发明人： Shinji MIitsuta ,  Shigeru Harada ,  Tomikazu Tanuki ,  Eishin Masutani ,  Yukihiro Nakanishi ,  Takeshi Kurihara ,  Dai Tsubone ,  Masaomi Machida

IPC分类号： H04N7/18

CPC分类号： H04N7/18 ,  B60P1/283 ,  B60R1/00 ,  B60R2300/607 ,  B60R2300/70 ,  G01G19/10

摘要： A periphery monitoring device (10) comprises a monitor (50) that displays a bird's-eye image (200) that includes an image of a dump truck (1), a payload meter ECU (21) that detects the load of the dump truck (1), and a controller (20) that switches the size of a cargo image (C1) displayed over the vessel (4) of the dump truck (1) and displays this image on the monitor (50) on the basis of the detection result of the payload meter ECU (21).In a load display device for a dump truck, a plurality of cameras are installed and the load display device monitors the periphery by using a bird's-eye image that combines images obtained by the plurality of cameras. The load display device includes a display component, a detector and a display controller. The display component is configured to display the bird's-eye image including an image of the dump truck. The detector is configured to detect a load of the dump truck. The display controller is configured to switch a size of a simulated cargo image displayed over a vessel of the dump truck based on a detection result of the detector and to display the simulated cargo image on the display component.

摘要翻译： 外围监视装置（10）包括监视器（50），其显示包括自卸车（1）的图像的鸟瞰图（200），检测自卸车的负载的有效载荷计量器ECU（21） （1），以及控制器（20），其切换显示在自卸车（1）的容器（4）上方的货物图像（C1）的尺寸，并将该图像基于 有效载荷表ECU（21）的检测结果。 在用于自卸车的负载显示装置中，安装多个照相机，并且负载显示装置通过使用组合由多个照相机获得的图像的鸟瞰图像来监视周边。 负载显示装置包括显示部件，检测器和显示控制器。 显示部件被配置为显示包括自卸车的图像的鸟瞰图像。 检测器被配置为检测自卸车的负载。 显示控制器被配置为基于检测器的检测结果来切换在自卸车的容器上显示的模拟货物图像的尺寸，并且将模拟的货物图像显示在显示部件上。

公开(公告)号：US08369646B2

公开(公告)日：2013-02-05

申请号：US11743366

申请日：2007-05-02

申请人： Shigeru Harada

发明人： Shigeru Harada

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

CPC分类号： H04N5/20 ,  G09G5/10 ,  G09G2320/066 ,  G09G2320/0673 ,  G09G2360/16

摘要： An image correction method includes the steps of: acquiring a black-side intermediate luminance distribution as a luminance distribution in a region between a lowest luminance in a given intermediate luminance region in a luminance distribution of input image data in an image frame and a reference luminance provided in the center of the intermediate luminance region; determining a low-luminance-region input/output characteristic curve on the basis of the acquired black-side intermediate luminance distribution, the low-luminance-region input/output characteristic curve passing through a reference point, in the reference input/output characteristic line, determined in accordance with the reference luminance and through a minimum luminance point of the reference input/output characteristic line; and executing image correction on input image data having a luminance which is lower than the reference luminance on the basis of the determined low-luminance-region input/output characteristic curve.

摘要翻译： 图像校正方法包括以下步骤：在图像帧中的输入图像数据的亮度分布中的给定中间亮度区域中的最低亮度与参考亮度之间的区域中获取作为亮度分布的黑色侧中间亮度分布 设置在中间亮度区域的中心; 基于获取的黑侧中间亮度分布，通过参考点的低亮度区域输入/输出特性曲线，在参考输入/输出特性线中，确定低亮度区域输入/输出特性曲线 根据参考亮度和参考输入/输出特性线的最小亮度点确定; 以及基于所确定的低亮度区域输入/输出特性曲线对具有低于参考亮度的亮度的输入图像数据执行图像校正。

公开(公告)号：US08369645B2

公开(公告)日：2013-02-05

申请号：US11743339

申请日：2007-05-02

申请人： Shigeru Harada

发明人： Shigeru Harada

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

CPC分类号： H04N5/202 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  H04N5/208 ,  H04N5/775

摘要： An image correction circuit includes: a region determining means for determining an intermediate luminance region in each image frame on the basis of the description of input image data; a luminance distribution acquiring means for acquiring a luminance distribution of input image data in the determined intermediate luminance region in each image frame; a determining means for determining an input/output characteristic line in each image frame by adaptively changing a predetermined reference input/output characteristic line on the basis of the acquired luminance distribution of the intermediate luminance region, the input/output characteristic line defining the substance of image correction on input image data; and a correction executing means for executing image correction on input image data on the basis of the determined input/output characteristic line.

摘要翻译： 图像校正电路包括：区域确定装置，用于根据输入图像数据的描述确定每个图像帧中的中间亮度区域; 亮度分布获取装置，用于获取每个图像帧中所确定的中间亮度区域中的输入图像数据的亮度分布; 确定装置，用于通过基于所获取的中间亮度区域的亮度分布自适应地改变预定参考输入/输出特性线来确定每个图像帧中的输入/输出特性线，该输入/输出特性线限定 输入图像数据的图像校正; 以及校正执行装置，用于根据确定的输入/输出特性线对输入图像数据执行图像校正。

公开(公告)号：US20070046788A1

公开(公告)日：2007-03-01

申请号：US11505963

申请日：2006-08-18

申请人： Shigeru Harada

发明人： Shigeru Harada

IPC分类号： H04N9/73

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T2207/10016 ,  H04N5/202 ,  H04N5/208 ,  H04N5/57 ,  H04N21/4318 ,  H04N21/44008

摘要： There is provided an image processing apparatus, an image display and an image processing method which are capable of preventing an unnatural change in image quality due to image processing. A luminance distribution detecting circuit detects a luminance distribution as the histogram distribution of YUV signals. A gain limiter levels out by limiting the frequency of the luminance histogram to a frequency threshold or less so as to reduce the concentration of the distribution on a specific luminance level segment. Then a γ correction circuit in the image processing section performs image processing (contrast control) on the YUV signals through the use of the luminance distribution leveled out.

摘要翻译： 提供了能够防止由图像处理引起的图像质量的不自然变化的图像处理装置，图像显示和图像处理方法。 亮度分布检测电路检测作为YUV信号的直方图分布的亮度分布。 增益限制器通过将亮度直方图的频率限制到频率阈值或更小来平衡，以便减小特定亮度级分段上分布的集中。 然后，图像处理部分中的伽马校正电路通过使用均衡的亮度分布对YUV信号执行图像处理（对比度控制）。