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：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：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。