公开(公告)号：US4952793A

公开(公告)日：1990-08-28

申请号：US338805

申请日：1989-04-14

申请人： Clifford B. Cantrell ,  Lawrence H. Gilligan

发明人： Clifford B. Cantrell ,  Lawrence H. Gilligan

IPC分类号： H01J29/98 ,  H04N5/235

CPC分类号： H01J29/98 ,  H04N5/2353

摘要： The gating circuit includes a low voltage section and a high voltage section with a fast and a slow switch in the high voltage section for providing the gating pulses to the photocathode (PC) of the image intensifier. A high voltage isolated DC/DC power supply referenced to the MCPin terminal of the integral wrap around power supply of the image intensifier provides, to the fast and slow switches, positive and negative potentials referenced to MCPin. The negative potential is sufficient to turn the PC on and the positive potential is sufficient to turn the PC off and to clear burned in PC images. The high voltage isolated power supply provides high voltage isolation between the low voltage section and the reference input and outputs thereof in the high voltage section. A driver included in the high voltage section for driving the fast switch receives operating potentials from a low voltage isolated DC/DC power supply referenced to the high voltage supply. The elements of the driver therefore only experience low voltages thereacross. High speed gating pulses and low speed gating pulses are conveyed between the low voltage section and the high voltage section across respective high and low speed isolation barriers to drive the fast and slow switches, respectively. The high speed barrier comprises a high voltage capacitor and the low speed barrier comprises an opto-isolator. The high speed pulses include narrow, low repetition rate pulses for clearing burned in images from the PC.

摘要翻译： 门电路包括低压部分和高压部分，高压部分具有快速和慢速开关，用于向图像增强器的光电阴极（PC）提供门控脉冲。 以图像增强器电源为中心的MCPin端子的高压隔离DC / DC电源为快速和慢速开关提供参考MCPin的正和负电位。 负电位足以使PC打开，正电位足以关闭PC并清除PC图像中的烧毁。 高压隔离电源在低压部分和高压部分的参考输入端和输出端之间提供高电压隔离。 包括在用于驱动快速开关的高压部分中的驱动器从参考高压电源的低压隔离DC / DC电源接收工作电位。 因此，驱动器的元件仅经历低电压。 高速门控脉冲和低速选通脉冲在低电压部分和高压部分之间跨越相应的高速和低速隔离屏障传送，以分别驱动快速和慢速开关。 高速屏障包括高压电容器，低速屏障包括光隔离器。 高速脉冲包括用于清除来自PC的图像中的烧焦的窄的低重复率脉冲。

公开(公告)号：US20090128558A1

公开(公告)日：2009-05-21

申请号：US12000727

申请日：2007-12-17

申请人： Frederick Morello ,  Christopher Ryan March ,  Clifford B. Cantrell

发明人： Frederick Morello ,  Christopher Ryan March ,  Clifford B. Cantrell

IPC分类号： G06T17/00

CPC分类号： G06F17/5004 ,  G06F2217/42

摘要： A method and system generates a building design and a three-dimensional image thereof. First building information comprising a length, width, total height and wall height of a building is received via a first graphical user interface. If the length, width, total height, wall height, and a selectable building shape yield a valid set of building parameters, a design of said building is generated at a first software module, which is configured to generate the design, including wall portions and a roof portion, using minimum information consisting of the length, width, total height, wall height, and selectable building shape. A first image and a structural analysis of the design are generated. A second software module generates a second three-dimensional image of the building, which is different from the first image. A second graphical user interface permits a user to modify the second image to include predefined building elements.

摘要翻译： 方法和系统生成建筑物设计及其三维图像。 经由第一图形用户界面接收包括建筑物的长度，宽度，总高度和壁高的第一建筑物信息。 如果长度，宽度，总高度，壁高度和可选择的建筑形状产生有效的建筑物参数，则在第一软件模块处产生所述建筑物的设计，第一软件模块被配置为产生包括壁部分和 使用由长度，宽度，总高度，壁高度和可选建筑物形状组成的最小信息的屋顶部分。 产生了设计的第一个图像和结构分析。 第二软件模块生成与第一图像不同的建筑物的第二三维图像。 第二图形用户界面允许用户修改第二图像以包括预定义的构建元素。

公开(公告)号：US08482558B2

公开(公告)日：2013-07-09

申请号：US12000727

申请日：2007-12-17

申请人： Frederick Morello ,  Christopher Ryan March ,  Clifford B. Cantrell

发明人： Frederick Morello ,  Christopher Ryan March ,  Clifford B. Cantrell

IPC分类号： G06T17/00

CPC分类号： G06F17/5004 ,  G06F2217/42

摘要： A method and system generates a building design and a three-dimensional image thereof. First building information comprising a length, width, total height and wall height of a building is received via a first graphical user interface. If the length, width, total height, wall height, and a selectable building shape yield a valid set of building parameters, a design of said building is generated at a first software module, which is configured to generate the design, including wall portions and a roof portion, using minimum information consisting of the length, width, total height, wall height, and selectable building shape. A first image and a structural analysis of the design are generated. A second software module generates a second three-dimensional image of the building, which is different from the first image. A second graphical user interface permits a user to modify the second image to include predefined building elements.

公开(公告)号：US4970593A

公开(公告)日：1990-11-13

申请号：US399733

申请日：1989-08-28

申请人： Clifford B. Cantrell

发明人： Clifford B. Cantrell

IPC分类号： G06T5/00 ,  H04N5/208

CPC分类号： G06T5/003 ,  G06T5/10 ,  G06T5/20 ,  H04N5/208 ,  A61B2018/00767 ,  A61B2018/00791 ,  A61B2018/087 ,  G06T2207/20056

摘要： A video camera system has a modulation transfer function (MTF). Video image data are stored in frame grabbers and converted in a digital signal processor from the image domain to the spatial domain by a two-dimensional digital Fourier transform. The spatial data are filtered by a two-dimensional aperture correction filter that has an MTF inverse to the uncorrected system MTF. The filtered spatical data are converted back into the image domain by a two-dimensional inverse digital Fourier transform. The two-dimensional digital aperture correction filter is stored in the form of software in the digital signal processor.

摘要翻译： 摄像机系统具有调制传递函数（MTF）。 视频图像数据被存储在帧采集器中，并通过二维数字傅里叶变换将数字信号处理器从图像域转换成空间域。 空间数据由具有与未校正系统MTF相反的MTF的二维孔径校正滤波器进行滤波。 滤波后的空间数据通过二维逆数字傅里叶变换转换回图像域。 二维数字孔径校正滤波器以软件的形式存储在数字信号处理器中。