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公开(公告)号：US5325013A
公开(公告)日：1994-06-28
申请号：US937780
申请日：1992-09-01
申请人： Jeffrey P. Johnson , David A. New
发明人： Jeffrey P. Johnson , David A. New
CPC分类号： H01J29/503
摘要： An improved cathode-ray tube includes a viewing screen and an electron gun for generating and directing three electron beams toward the screen. The gun includes at least eight electrodes spaced in order from three cathodes, with the furthest electrode from the cathodes being interconnected to a tube anode. The electrodes form a beam forming region, a first quadrupole lens, a main focus lens and a second quadrupole lens in the path of each electron beam. In the improvement, the second quadrupole lens is positioned on the anode side of main focus lens, with the first quadrupole lens being diverging for defocusing the beams, and the second quadrupole lens being converging for focusing the beams in the horizontal plane.
摘要翻译： 改进的阴极射线管包括观察屏和电子枪，用于产生并引导三个电子束朝向屏幕。 该枪包括至少八个按三个阴极依次间隔开的电极，阴极的最远电极与管阳极相互连接。 电极在每个电子束的路径中形成波束形成区域，第一四极透镜，主聚焦透镜和第二四极透镜。 在改进中，第二四极透镜位于主聚焦透镜的阳极侧，第一四极透镜发散用于使光束散焦，并且第二四极透镜会聚以将光束聚焦在水平面中。
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公开(公告)号：US07940992B2
公开(公告)日：2011-05-10
申请号：US12039086
申请日：2008-02-28
IPC分类号： G06K9/40
CPC分类号： G06T7/0004 , G06T2207/20012 , G06T2207/30168
摘要： A computer implemented method for applying a visual discrimination model for single image applications includes receiving an image, defining a plurality of regions of interest in the image including a first region located to contain a feature or object to be detected and a second region located to encompass a background, determining metrics for visibility of the feature or object, wherein the metrics are determined by generating channel Just-Noticeable Difference (JND) maps for the single image determining JND summary metrics for the plurality of regions, and determining a difference in JND metrics between the plurality of regions, and adjusting parameters of the JND metrics to increase a visibility of the feature or object in the image.
摘要翻译： 一种用于对单个图像应用应用视觉辨别模型的计算机实现的方法包括：接收图像，在所述图像中定义多个感兴趣区域，所述图像包括位于包含待检测的特征或对象的第一区域和位于所述第二区域 背景，确定所述特征或对象的可见性的度量，其中通过为所述多个区域确定所述单个图像确定JND汇总度量并且确定所述多个区域中的差异来确定所述度量是通过生成信道Just-Noticeable Difference（JND）映射来确定的 并且调整JND度量的参数以增加图像中的特征或对象的可视性。
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公开(公告)号：US20080012856A1
公开(公告)日：2008-01-17
申请号：US11800565
申请日：2007-05-07
IPC分类号： G06T17/00
CPC分类号： G06T7/0012 , G06T2207/30004
摘要： Perception-based visual quality metrics are used in volume rendering. A perception-based visual quality metric is measured from one or more three-dimensional representations. For example, people tend to notice edges, so a numeric value representing the noticeable edges is calculated. The perception-based metric is used for developing volume renderers, calibrating across different renderers, calibrating across different rendering platforms, determining rendering parameter values as a function of rendering speed, selecting rendering parameter values for a given situation, providing a range of rendering options associated with gradual perception changes, and/or combinations thereof. The perception-based visual quality metric provides a quantifiable representation of importance to the user for a given application, assisting optimization of volume rendering.
摘要翻译： 基于感知的视觉质量度量用于体绘制。 从一个或多个三维表示测量基于感知的视觉质量度量。 例如，人们倾向于注意边缘，因此计算表示可见边缘的数值。 基于感知的度量用于开发体积渲染器，在不同渲染器之间进行校准，在不同的渲染平台之间进行校准，根据渲染速度确定渲染参数值，为给定情况选择渲染参数值，提供相关的渲染选项范围 具有逐渐的感知变化，和/或其组合。 基于感知的视觉质量度量为给定应用程序提供了对用户重要性的可量化表示，有助于体绘制的优化。
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公开(公告)号：US5223663A
公开(公告)日：1993-06-29
申请号：US814988
申请日：1991-12-23
摘要： To handle the transfer of ammunition between a turret bustle magazine and hull magazines of a military tank, a carriage is mounted for horizontal movement between a stow position and a transfer position and for vertical movement between an upper position addressing the bustle magazine and lower positions addressing the hull magazines. An ammunition carrier is mounted to the carriage for rotational motion in a vertical plane driven off the vertical carriage motion, such that the carrier swings around the cannon breech protruding into the turret in assuming reversed end-to-end horizontal orientations when presented to the bustle and hull magazines. Extractor assemblies are axially reciprocated within a carrier tube by a stroke multiplier mechanism to engage and release the base rim of projectile and propellant modules pursuant to transferring modules between the carrier and the hull magazines. Projectile and propellant modules are united while the carrier tube is presented to the bustle magazine.
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公开(公告)号：US20080129732A1
公开(公告)日：2008-06-05
申请号：US11881944
申请日：2007-07-30
申请人： Jeffrey P. Johnson , John Patrick Collins , Mariappan S. Nadar , John S. Nafziger , Thomas Stingl , Daphne Yu
发明人： Jeffrey P. Johnson , John Patrick Collins , Mariappan S. Nadar , John S. Nafziger , Thomas Stingl , Daphne Yu
IPC分类号： G06T17/00
CPC分类号： G06T15/08 , G06T7/0002 , G06T2207/30168
摘要： Artifact quantification is provided in volume rendering. Since the visual conspicuity of rendering artifacts strongly influences subjective assessments of image quality, quantitative metrics that accurately correlate with human visual perception may provide consistent values over a range of imaging conditions.
摘要翻译： 在体绘制中提供了人工定量。 由于渲染工件的视觉显着性强烈影响图像质量的主观评估，与人类视觉感知准确相关的定量度量可能会在成像条件范围内提供一致的值。
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公开(公告)号：US5958267A
公开(公告)日：1999-09-28
申请号：US897142
申请日：1997-07-21
申请人： Andrew A. Lingenfelter , James M. Gehr , Johnny R. Skipper , Robert J. Sziemkiewicz , Jeffrey P. Johnson , Robert A. Haughton , Harry L. Batson , Jaime A. Zuloaga, Jr. , Michael T. Kiernan , John L. Harmon , Edward G. Apple, Jr.
发明人： Andrew A. Lingenfelter , James M. Gehr , Johnny R. Skipper , Robert J. Sziemkiewicz , Jeffrey P. Johnson , Robert A. Haughton , Harry L. Batson , Jaime A. Zuloaga, Jr. , Michael T. Kiernan , John L. Harmon , Edward G. Apple, Jr.
CPC分类号： B23K26/032 , B23K26/04 , B23K26/0823 , B23K26/12 , B23K26/123 , B23K26/127 , B23K26/206 , G21C3/10 , Y02E30/40
摘要： A high pressure laser welding method and apparatus enables seam welding of a nuclear fuel rod at hyperbaric pressure. In an automatic process, a loaded fuel rod and an upper end plug are mated within a sealable weld box. A pressure within the weld box is controlled relative to a pressure within the fuel rod, and a laser assembly welds the seam at hyperbaric pressure. Helium flowing through a laser window nozzle during welding prevents soot contamination of the laser window glass and prevents formation of ionic plasma. The upper end plug fuel rod welding operation is thus reduced to a single step and eliminates inspection related tasks with respect to a sealed hole.
摘要翻译： 一种高压激光焊接方法和装置能够在高压下对核燃料棒进行缝焊。 在自动过程中，装载的燃料棒和上端塞匹配在可密封的焊接盒内。 焊接箱内的压力相对于燃料棒内的压力进行控制，激光组件以高压将焊缝焊接。 在焊接过程中流过激光窗口的氦气可防止激光窗玻璃的灰尘污染，并防止形成离子等离子体。 因此，上端插头燃料棒焊接操作减少到单个步骤，并且消除了与密封孔相关的检查相关任务。
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公开(公告)号：US5489824A
公开(公告)日：1996-02-06
申请号：US197081
申请日：1993-05-17
CPC分类号： H04N3/26 , H01J29/563 , H01J29/76 , H04N9/285
摘要： A deflection apparatus produces a field gradient that reduces a tendency of a major axis of a beam spot to become elongated at each corner, at each end of a horizontal axis and at each end of a vertical axis of a display screen relative to the beam spot at the center of the display screen. A beam spot stigmator causes the beam spot to be substantially anastigmatic at each of the corners, the end of the horizontal axis and the end of the vertical axis of the display screen.
摘要翻译： 偏转装置产生场梯度，其减小了光束斑点的长轴在每个角部处，在水平轴线的每个端部处以及在显示屏幕的垂直轴线的每个端部处相对于光束点变细的趋势 在显示屏的中央。 光斑瞄准器使得光束点在每个角部，水平轴线的端部和显示屏幕的垂直轴线的端部处基本上是非对称的。
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公开(公告)号：US5408163A
公开(公告)日：1995-04-18
申请号：US937873
申请日：1992-10-19
CPC分类号： H01J29/76 , H01J2229/862
摘要： A self converging, widescreen color picture tube system includes a widescreen, in-line color picture tube having a funnel, an electron gun assembly (28) for three in-line electron beams located in a neck at one end of the picture tube, and a faceplate with a viewing screen at the other end. The picture tube has a wide aspect ratio. A self converging widescreen deflection yoke (40) for deflecting the electron beams in the wide aspect ratio picture tube includes horizontal and vertical deflection windings. The yoke (40) is located by an initial flare section of the funnel and positioned along the longitudinal axis of the picture tube to make the tube reference line and the yoke deflection plane substantially coincident. To achieve substantial horizontal astigmatism correction at the extremes of the major axis of the wide viewing screen, the horizontal deflection winding is constructed to have a generally pincushion-shaped horizontal deflection field over the effective length of the field. The field is modified from that required of the horizontal deflection field in a comparable self converging narrowscreen yoke. The modification is made in accordance with the differences in centerscreen slope angles and S-spacing.
摘要翻译： PCT No.PCT / US91 / 03250 Sec。 371日期：1992年10月19日 102（e）日期：1992年10月19日PCT PCT。1991年5月10日提交。一种自会聚宽屏彩色显像管系统，包括具有漏斗的宽屏，直列彩色显像管，三个电子枪组件（28） 位于显像管一端的颈部的线电子束，另一端具有观察屏的面板。 显像管具有宽的纵横比。 用于偏转宽纵横比显像管中的电子束的自会聚宽屏偏转线圈（40）包括水平和垂直偏转绕组。 磁轭（40）由漏斗的初始扩口部分定位，并沿着显象管的纵向轴线定位，以使管线参考线和磁轭偏转平面基本一致。 为了在宽观察屏幕的长轴的极端处实现大量的水平像散校正，水平偏转绕组被构造成在场的有效长度上具有大致枕形的水平偏转场。 该场从可比较的自会聚狭窄屏障轭中的水平偏转场的要求修改。 根据中心屏幕坡度角和S间距的差异进行修改。
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公开(公告)号：US5327051A
公开(公告)日：1994-07-05
申请号：US554503
申请日：1990-07-19
摘要： A deflection apparatus includes a pair of quadrupole arrangements for producing a pair of quadrupole fields in a beam path of an electron beam at different distances from a display screen. In an embodiment of the invention, the first and second quadrupole arrangements and a main deflection field producing arrangement cooperate to converge three electron beams, R, G and B, with one another.
摘要翻译： 偏转装置包括一对四极装置，用于在与显示屏不同的距离处的电子束的光束路径中产生一对四极场。 在本发明的一个实施例中，第一和第二四极配置和主偏转场产生装置配合使三个电子束R，G和B彼此收敛。
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公开(公告)号：US5028850A
公开(公告)日：1991-07-02
申请号：US554644
申请日：1990-07-19
CPC分类号： H04N3/26 , H01J29/563 , H01J29/76 , H04N9/285
摘要： A deflection apparatus produces a field gradient that reduces a tendency of a major axis of a beam spot to become elongated at each corner, at each end of a horizontal axis and at each end of a vertical axis of a display screen relative to the beam spot at the center of the display screen. A beam spot stigmator causes the beam spot to be substantially anastigmatic at each of the corners, the end of the horizontal axis and the end of the vertical axis of the display screen.
摘要翻译： 偏转装置产生场梯度，其减小了光束斑点的长轴在每个角部处，在水平轴线的每个端部处以及在显示屏幕的垂直轴线的每个端部处相对于光束点变细的趋势 在显示屏的中央。 光斑瞄准器使得光束点在每个角部，水平轴线的端部和显示屏幕的垂直轴线的端部处基本上是非对称的。
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