COMBUSTION SYSTEMS AND COMBUSTION SYSTEM COMPONENTS FOR ROTARY RAMJET ENGINES
    2.
    发明申请
    COMBUSTION SYSTEMS AND COMBUSTION SYSTEM COMPONENTS FOR ROTARY RAMJET ENGINES 有权
    用于旋转拉杆发动机的燃烧系统和燃烧系统组件

    公开(公告)号:US20140290259A1

    公开(公告)日:2014-10-02

    申请号:US14126782

    申请日:2012-05-25

    摘要: A combustion systems and components for rotary ramjet engines. An injection system, optionally stratified for ease of engine startup, provides an air and fuel mixture to a combustion chamber. An ignition system ignites the mixture. A flameholding system may be positioned for communication with the combustion chamber to force an ignited flow of the air and fuel mixture toward a center of rotation within the ramjet engine. The ramjet engine may have a diverging stator for improved exhaust efficiency. The ignition may take place in the engine air intake. Alternatively, the ignition may take place within the combustion chamber using a dual-hub electrically charged system. An impulse turbine may use recirculation of injected fuel to cool a rim-rotor and/or to reduce windage on the rim-rotor. A sealing system may reduce gas leaks from a fuel conduit into the engine air intake.

    摘要翻译: 用于旋转冲压喷气发动机的燃烧系统和部件。 为了便于发动机起动,可选地分层的喷射系统为燃烧室提供空气和燃料混合物。 点火系统点燃混合物。 火焰保持系统可以被定位成与燃烧室连通以迫使空气和燃料混合物的点燃流动朝向冲压喷气发动机内的旋转中心。 冲压式喷气发动机可以具有发散定子,以提高排气效率。 点火可能发生在发动机进气口。 或者,可以使用双毂式带电系统在燃烧室内进行点火。 脉冲涡轮机可以使用喷射燃料的再循环来冷却轮辋转子和/或减少轮辋转子上的风向。 密封系统可以减少从燃料管道到发动机进气口的气体泄漏。

    Pyramidal Decomposition for Multi-Resolution Image Filtering
    4.
    发明申请
    Pyramidal Decomposition for Multi-Resolution Image Filtering 审中-公开
    多分辨率图像滤波的金字塔分解

    公开(公告)号:US20080152251A1

    公开(公告)日:2008-06-26

    申请号:US11814817

    申请日:2006-01-27

    IPC分类号: G06K9/40

    摘要: A modified Laplacian-pyramid method and system filters (340-360, 440-460) the Gaussian image at each level (31-33, 41-43) of the pyramid, and uses the filtered Gaussian image (341-361, 441-461) to produce the Laplacian-pyramid images (349-369, 449-469). The filtering of the Gaussian image is adaptive, and based at least in part on the characteristics of the Gaussian image at each stage. In one example embodiment, two filters (F1, F2) are used at each stage, and the Laplacian image (349-369) is based on a filtered version of the Gaussian image and an upsampled filtered version of a downsampling (346-366) of the Gaussian image. In another example, filter is used, and the Laplacian image (449-469) is based on the filtered version (441-461) of the Gaussian image and an upsampled downsampling (446-466) of the filtered version of the Gaussian image. By forming the Laplacian images (349-369, 449-469) from the filtered Gaussian images (341-361, 441-461), the aliasing conventionally produced by filtering the Laplacian images is substantially reduced.

    摘要翻译: 金字塔的每个级别(31 - 33,41 - 43)上的高斯图像(341-336,404-460)的改进的拉普拉斯棱锥法和系统滤波器(340-360,440-460),并且使用滤波高斯图像 461)产生拉普拉斯金字塔图像(349 - 369,449 - 469)。 高斯图像的滤波是自适应的,并且至少部分地基于每个阶段的高斯图像的特性。 在一个示例实施例中,在每个阶段使用两个滤波器(F 1,F 2),并且拉普拉斯图像(349-369)基于高斯图像的滤波版本和下采样(346-369)的上采样滤波版本, 366)的高斯图像。 在另一示例中,使用滤波器,并且拉普拉斯图像(449-469)基于高斯图像的滤波版本(441-461)和高斯图像的滤波版本的上采样下采样(446-466)。 通过从滤波高斯图像(341-361,441-461)形成拉普拉斯图像(349-369,449-469),通常通过滤波拉普拉斯图像产生的混叠显着减少。

    Medical imaging system with temporal filter
    5.
    发明申请
    Medical imaging system with temporal filter 审中-公开
    具有时间滤波器的医学成像系统

    公开(公告)号:US20070071354A1

    公开(公告)日:2007-03-29

    申请号:US10572616

    申请日:2004-09-02

    IPC分类号: G06K9/40

    摘要: The invention relates to an image processing system for reduction of the noise and enhancement of edges in images of a sequence, comprising means of decomposition of spatial image signal yielding slices of different content; means of temporal filtering for differently filtering the slices according to the content; and means of recomposition of the images of the sequence from the temporally filtered slices. The decomposition may be performed using means of pyramidal decomposition. The means of temporal filtering may comprise motion compensation and/or recursive adaptive filtering. This system may further comprise imaging means for displaying the images of the sequence. The invention further relates to a medical examination apparatus coupled to this system.

    摘要翻译: 本发明涉及一种用于减少序列图像中的边缘噪声和增强的图像处理系统,包括:分解空间图像信号的装置,产生不同内容的片段; 用于根据内容对片段进行不同过滤的时间滤波手段; 以及重新组合来自时间过滤的片段的序列的图像的装置。 可以使用金字塔形分解的方法进行分解。 时间滤波的方法可以包括运动补偿和/或递归自适应滤波。 该系统还可以包括用于显示序列的图像的成像装置。 本发明还涉及耦合到该系统的医学检查装置。

    Method of Filtering Bending Features
    7.
    发明申请
    Method of Filtering Bending Features 审中-公开
    过滤弯曲特征的方法

    公开(公告)号:US20080285880A1

    公开(公告)日:2008-11-20

    申请号:US12093768

    申请日:2006-11-16

    IPC分类号: G06K9/40

    CPC分类号: G06T5/20

    摘要: The present invention relates to a method of filtering an input image using a target oriented filter pattern, which has been obtained by warping a source oriented filter pattern. Such a method comprises a step of computing a source oriented filter pattern at a central image point of said input image, said source oriented filter pattern comprising a source central line, a step of analyzing intensity levels of image points in the vicinity of the central image point for determining a target central line and a step of computing a target oriented filter pattern at the central image point from said target central line and said source oriented filter pattern by defining transformation rules between points of the source and points of the target oriented filter patterns. The method in accordance with the invention finally comprises a step of computing a target oriented filter from said target oriented filter pattern and of applying said target oriented filter to said input image for producing an output image.

    摘要翻译: 本发明涉及一种使用面向目标的滤波器图案来对输入图像进行滤波的方法,该方法是通过扭曲源极化滤波器图案而获得的。 这种方法包括以下步骤:在所述输入图像的中心图像点处计算源取向滤波器图案,所述源向量滤波器图案包括源中心线,分析中心图像附近的图像点的强度级别的步骤 用于确定目标中心线的点和从所述目标中心线和所述源向量滤波器图案在所述中心图像点处计算面向目标滤波器图案的步骤,通过在所述目标定向滤波器图案的源点和点之间定义变换规则 。 根据本发明的方法最终包括从所述目标定向滤波器图案计算目标定向滤波器并将所述目标定向滤波器应用于所述输入图像以产生输出图像的步骤。