公开(公告)号：US09787960B2

公开(公告)日：2017-10-10

申请号：US14910168

申请日：2014-08-12

申请人： Shinichi Sumiyoshi

发明人： Shinichi Sumiyoshi

IPC分类号： H04N3/223 ,  H04N9/31 ,  G06K9/46

CPC分类号： H04N9/3185 ,  G06K9/4604 ,  H04N9/3194

摘要： A projection control unit performs control such that a first pattern image in which first feature points are arranged is caused to be projected on a projection surface, and a second pattern image including second feature points corresponding to the first feature points is caused to be projected on a planar projection surface. An acquisition unit acquires, from a photographing unit, a first photographed image of the projected first pattern image and a second photographed image of the second pattern image. An extraction unit extracts second connected components in which the second feature points are connected in a predetermined direction and first connected components in which the first feature points are connected. A shift amount calculation unit calculates shift amounts of the first connected components with respect to the second connected components. A first calculation unit calculates correction information for correcting a projection target image based on the shift amounts.

公开(公告)号：US08038303B2

公开(公告)日：2011-10-18

申请号：US12208499

申请日：2008-09-11

申请人： Hideaki Inoue

发明人： Hideaki Inoue

IPC分类号： G03B21/00 ,  G03B21/14 ,  G03B3/00 ,  H04N3/26 ,  H04N3/23 ,  H04N3/223 ,  H04N3/227

CPC分类号： H04N9/3194 ,  G03B21/53 ,  H04N9/317 ,  H04N9/3185

摘要： Disclosed is a projection apparatus including: a video display control section 53 to project and display a video according to input video data; and a projection distance obtainment section 14 to irradiate to a projection plane where the video is projected with a laser and displayed by the video display control section 53, and to obtain a projection distance to the projection plane, wherein when the projection distance is obtained by the projection distance obtainment section 14, the video display control section 53 adjusts a display status of at least a first video area 66 corresponding to a laser ranging point 63 which is an area where the laser is irradiated to a display status for obtaining the projection distance so that the distance from the projection apparatus to the projection plane can be measured fast and with high accuracy.

摘要翻译： 公开了一种投影设备，包括：视频显示控制部分53，用于根据输入的视频数据投影和显示视频; 以及投影距离获取部分14，用激光照射到视频投射的投影平面并由视频显示控制部分53显示，并且获得到投影平面的投影距离，其中当投影距离通过 投影距离获取部分14，视频显示控制部分53调整与激光测距点63相对应的至少第一视频区域66的显示状态，激光测距点63是激光照射的区域，以获得投影距离的显示状态 使得能够快速且高精度地测量从投影装置到投影平面的距离。

公开(公告)号：US07607783B2

公开(公告)日：2009-10-27

申请号：US10964538

申请日：2004-10-13

申请人： Keiichi Sakurai ,  Akihiko Nagasaka ,  Tetsuji Makino ,  Yoshihiro Teshima

发明人： Keiichi Sakurai ,  Akihiko Nagasaka ,  Tetsuji Makino ,  Yoshihiro Teshima

IPC分类号： G03B21/14 ,  G06K9/40 ,  H04N3/23 ,  H04N3/223 ,  H04N3/227

CPC分类号： G06T3/0006

摘要： A document camera has an image processing apparatus, which acquires the contour of an image of an original by means of a Roberts filter. The image processing apparatus detects straight lines as candidates for forming an image of the original from the acquired contour and acquires the shape of a quadrangle of the original. The image processing apparatus determines the projection parameters showing the relationship between the shape of the image of the original and the shape of the actual original from the positions of the corners of the quadrangle and executes an operation of projection/transformation on the image of the original. The document camera outputs the image data of the image to a projector, which projects an image of the original on a screen according to the image data.

摘要翻译： 文件照相机具有通过罗伯茨滤波器获取原稿的图像的轮廓的图像处理装置。 图像处理装置将直线作为从获取的轮廓形成原稿的图像的候选，并且获取原稿的四边形的形状。 图像处理装置从四边形的角度的位置确定表示原稿的形状与实际原稿的形状的关系的投影参数，并对原稿的图像执行投影/变换的操作 。 文件摄影机将图像的图像数据输出到投影仪，投影仪根据图像数据在屏幕上投射原稿的图像。

公开(公告)号：US07357517B2

公开(公告)日：2008-04-15

申请号：US11344190

申请日：2006-02-01

申请人： Hiroshi Hasegawa

发明人： Hiroshi Hasegawa

IPC分类号： G03B21/26 ,  H04N3/22 ,  H04N3/26 ,  H04N3/223 ,  H04N3/227

CPC分类号： G03B37/04 ,  H04N9/3147 ,  H04N9/3194

摘要： A projector includes an image capture device that captures an image in a capture region larger than a projection region of a projection image; an image determining unit that compares and determines the projection image projected by the corresponding projector with another projection image projected in the capture region on the basis of capture information acquired from the image capture device; a transmission image display unit that projects and displays a transmission image indicating that the corresponding projector is ready to perform a tiling projection when the image determining unit determines that the projection image projected by the corresponding projector is the same as the another projection image; a transmission image determining unit that determines whether or not another projector projecting the another projection image has projected the transmission image; and a process parameter creating unit that creates a process parameter which processes display information of the projection image on the basis of a determination result of the transmission image determining unit.

摘要翻译： 一种投影仪，包括捕获在大于投影图像的投影区域的捕获区域中的图像的图像捕获装置; 图像确定单元，其基于从所述图像捕获装置获取的捕捉信息，比较并确定由所述对应的投影仪投影的投影图像投影在所述拍摄区域中的另一投影图像; 当图像确定单元确定由相应的投影仪投影的投影图像与另一投影图像相同时，投影并显示指示相应的投影仪准备好执行平铺投影的透射图像的透射图像显示单元; 发送图像确定单元，确定投影了另一个投影图像的另一个投影仪是否投射了发送图像; 以及过程参数创建单元，其基于所述发送图像确定单元的确定结果创建处理所述投影图像的显示信息的处理参数。

公开(公告)号：US07131732B2

公开(公告)日：2006-11-07

申请号：US10890567

申请日：2004-07-12

申请人： Hideaki Inoue

发明人： Hideaki Inoue

IPC分类号： G03B21/14 ,  H04N3/23 ,  H04N3/223 ,  H04N3/227

CPC分类号： H04N9/3185 ,  G03B21/14

摘要： In a projector to which the present invention is applied, a distance sensor measures distances between the projector and a plurality of points on a screen. An angle calculation unit obtains a formula representing a screen surface, based on plural pieces of distance data representing results of measurement by the distance sensor, and obtains inclination angles θV and θH of the screen with respect to the light axis of a projection light. The angle calculation unit supplies the obtained inclination angles θV and θH to a trapezoidal correction unit. The trapezoidal correction unit performs trapezoidal correction by using the supplied inclination angles θV and θH.

摘要翻译： 在应用本发明的投影仪中，距离传感器测量投影仪与屏幕上的多个点之间的距离。 角度计算单元基于代表距离传感器的测量结果的多条距离数据，获得表示屏幕表面的公式，并且获得倾斜角度θ和/ >相对于投影光的光轴的屏幕。 角度计算单元将所获得的倾斜角度θθ和θH 2提供给梯形校正单元。 梯形校正单元通过使用所提供的倾斜角θθ和θH来执行梯形校正。

公开(公告)号：US20050078879A1

公开(公告)日：2005-04-14

申请号：US10964538

申请日：2004-10-13

申请人： Keiichi Sakurai ,  Akihiko Nagasaka ,  Tetsuji Makino ,  Yoshihiro Teshima

发明人： Keiichi Sakurai ,  Akihiko Nagasaka ,  Tetsuji Makino ,  Yoshihiro Teshima

IPC分类号： H04N5/225 ,  G06T3/00 ,  H04N5/222 ,  H04N5/232 ,  G06K9/00 ,  H04N3/223

CPC分类号： G06T3/0006

摘要： A document camera has an image processing apparatus, which acquires the contour of an image of an original by means of a Roberts filter. The image processing apparatus detects straight lines as candidates for forming an image of the original from the acquired contour and acquires the shape of a quadrangle of the original. The image processing apparatus determines the projection parameters showing the relationship between the shape of the image of the original and the shape of the actual original from the positions of the corners of the quadrangle and executes an operation of projection/transformation on the image of the original. The document camera outputs the image data of the image to a projector, which projects an image of the original on a screen according to the image data.

摘要翻译： 文件照相机具有通过罗伯茨滤波器获取原稿的图像的轮廓的图像处理装置。 图像处理装置将直线作为从获取的轮廓形成原稿的图像的候选，并且获取原稿的四边形的形状。 图像处理装置从四边形的角度的位置确定表示原稿的形状与实际原稿的形状的关系的投影参数，并对原稿的图像执行投影/变换的操作 。 文件摄影机将图像的图像数据输出到投影仪，投影仪根据图像数据在屏幕上投射原稿的图像。

公开(公告)号：US6151079A

公开(公告)日：2000-11-21

申请号：US360248

申请日：1999-07-23

申请人： Tatsuo Nagata ,  Takaaki Matono ,  Takeshi Sakai ,  Ryo Hasegawa ,  Koichi Sudo

发明人： Tatsuo Nagata ,  Takaaki Matono ,  Takeshi Sakai ,  Ryo Hasegawa ,  Koichi Sudo

IPC分类号： G06F3/147 ,  G09G3/20 ,  G09G5/00 ,  H04N5/44 ,  H04N7/01 ,  H04N9/74 ,  H04N3/223

CPC分类号： G09G5/008 ,  G06F3/1475 ,  G09G5/005 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0442 ,  G09G2360/02 ,  G09G5/006

摘要： The present invention relates to a video signal processing apparatus for converting video signals based on a desired transmission system such as NTSC, PAL, MUSE or any other system so as to conform to a display unit of a desired screen system such as XGA, VGA or the like. The apparatus has a feature that it is provided with a PLL circuit for changing a sampling frequency used by an analog-to-digital converter for converting inputted video signals into digital signals in accordance with the sort of the transmission system of the video signals, and a controller for controlling picture element interpolation of the digital signals performed by a picture image magnifying circuit for magnifying the video signals horizontally and vertically, in accordance with the sort of the transmission system of the video signals.

摘要翻译： 本发明涉及一种视频信号处理装置，用于根据诸如NTSC，PAL，MUSE或任何其他系统的期望的传输系统来转换视频信号，以便符合所需屏幕系统的显示单元，例如XGA，VGA或 类似。 该装置具有一个特征，它具有一个PLL电路，用于根据视频信号的传输系统的种类，改变用于将输入的视频信号转换为数字信号的模拟 - 数字转换器使用的采样频率;以及 控制器，用于控制由图像放大电路执行的数字信号的像素内插，用于根据视频信号的传输系统的分类水平和垂直放大视频信号。

公开(公告)号：US6060845A

公开(公告)日：2000-05-09

申请号：US944965

申请日：1997-10-07

申请人： Masahisa Tsukahara ,  Toshimitsu Watanabe ,  Makoto Kitamura ,  Takeshi Mochizuki

发明人： Masahisa Tsukahara ,  Toshimitsu Watanabe ,  Makoto Kitamura ,  Takeshi Mochizuki

IPC分类号： H04N3/223 ,  H04N3/23 ,  H01J29/56 ,  H01J29/70

CPC分类号： H04N3/223

摘要： A raster distortion correction and deflection circuit arrangement includes a deflection coil adapted to be mounted on a cathode ray tube, a horizontal deflection coil driving circuit for passing a current of saw-tooth waveform of a horizontal deflection period through a horizontal deflection coil constituting the deflection coil, a flyback transformer the primary winding of which is connected between a power supply and an output terminal of the horizontal deflection coil driving circuit, an S-correction capacitor connected in series with the horizontal deflection coil, and an anode voltage detection circuit for detecting variations in an anode voltage of the cathode ray tube which is a secondary winding output of the flyback transformer. A raster distortion correction current based on an output voltage of the anode voltage detection circuit is injected into a connection point of the horizontal deflection coil and the S-correction capacitor. A signal from a signal detection circuit for ABL connected to the flyback transformer can be employed together with an output of the anode voltage detection circuit or in substitution for it for generating the raster distortion correction current.

摘要翻译： 光栅失真校正和偏转电路装置包括适于安装在阴极射线管上的偏转线圈，水平偏转线圈驱动电路，用于使水平偏转周期的锯齿波形的电流通过构成偏转的水平偏转线圈 线圈，其初级绕组连接在水平偏转线圈驱动电路的电源和输出端子之间的回扫变压器，与水平偏转线圈串联连接的S校正电容器和用于检测的阳极电压检测电路 作为回扫变压器的次级绕组输出的阴极射线管的阳极电压的变化。 基于阳极电压检测电路的输出电压的光栅失真校正电流被注入水平偏转线圈和S校正电容器的连接点。 来自与反激式变压器连接的ABL的信号检测电路的信号可以与阳极电压检测电路的输出一起使用，或代替其产生光栅失真校正电流。

公开(公告)号：US5963678A

公开(公告)日：1999-10-05

申请号：US772920

申请日：1996-12-24

申请人： Shingo Nozawa

发明人： Shingo Nozawa

IPC分类号： H04N19/00 ,  G06T3/40 ,  H04N3/223 ,  H04N7/01 ,  H04N19/59 ,  H04N19/625 ,  H04N19/80 ,  H04N19/85 ,  H04N19/91 ,  G06K9/32 ,  G06K9/36 ,  G06K9/46

CPC分类号： G06T3/4007 ,  H04N19/40 ,  H04N19/59 ,  H04N7/01

摘要： An image signal having h.times.v pixel signals in the horizontal and vertical directions, respectively, is input to an image signal processor and converted into an image signal having m.times.n pixel signals in the horizontal and vertical directions, respectively. The converted image signal having m.times.n pixel signals is then converted into the image signal having h.times.v pixel signals and is then subjected to compression encoding. The compresed image signal is decoded and converted into the image signal having m.times.n pixel signals by thinning the pixel signals of the decoded image signal.

摘要翻译： 分别在水平和垂直方向上具有hxv像素信号的图像信号被输入到图像信号处理器，并分别转换成具有水平和垂直方向上的m×n个像素信号的图像信号。 具有m×n个像素信号的转换图像信号然后被转换成具有hxv像素信号的图像信号，然后进行压缩编码。 压缩的图像信号通过对解码图像信号的像素信号进行稀疏而被解码并转换成具有m×n个像素信号的图像信号。

公开(公告)号：US5856729A

公开(公告)日：1999-01-05

申请号：US748976

申请日：1996-11-14

申请人： Cheng-Di Tsai

发明人： Cheng-Di Tsai

IPC分类号： G09G1/00 ,  H01J29/70 ,  H04N3/223 ,  H04N3/233 ,  G09G1/04

CPC分类号： G09G1/00 ,  H01J29/701 ,  H04N3/223 ,  H04N3/233

摘要： The present invention includes a DC signal generating circuit for generating a DC signal and a ramp signal generating circuit for generating a periodic ramp signal. A synthesizing circuit is then used to combine the DC signal and the ramp signal to generate a synthesized signal, where the DC level of the synthesized signal is determined by the DC level of the DC signal. A driving circuit is used to amplify the power of the synthesized signal. A rotate coil surrounding the neck of a cathode-ray tube is responsive to the amplified synthesized signal, and therefore generates a magnetic force to turn electron beam in the cathode-ray tube, thereby compensating the trapezoidal distortion on the bottom and the top edges of a screen display.

摘要翻译： 本发明包括用于产生DC信号的DC信号发生电路和用于产生周期性斜坡信号的斜坡信号产生电路。 然后使用合成电路来组合DC信号和斜坡信号以产生合成信号，其中合成信号的DC电平由DC信号的DC电平确定。 驱动电路用于放大合成信号的功率。 围绕阴极射线管的颈部的旋转线圈响应于放大的合成信号，因此产生磁力以在阴极射线管中转动电子束，由此补偿底部和顶部边缘上的梯形失真 屏幕显示。