Biological hazard mitigation apparatus for mail/package handling personnel safety and operating methods therefor
    1.
    发明授权
    Biological hazard mitigation apparatus for mail/package handling personnel safety and operating methods therefor 失效
    邮件/包装处理人员的生物危害减轻装置的安全和操作方法

    公开(公告)号:US06811587B1

    公开(公告)日:2004-11-02

    申请号:US10302325

    申请日:2002-11-18

    IPC分类号: F24F900

    摘要: A biological hazard mitigation apparatus permitting a material handling operation in the vicinity of a work area includes a plenum pneumatically coupled and proximate to one side of the work area, a filter sized to trap biological hazards and including an exhaust port, a blower including an inlet port and an exhaust port, and ducting pneumatically coupling the exhaust port of the filter to the inlet port of the blower, wherein the filter is disposed in the plenum, and adjacent surfaces of the filter and the plenum are substantially equal in surface area. If desired, the ducting includes first and second ducts, permitting a silencer to be disposed between the first and second ducts. Methods for operating the apparatus are also described.

    摘要翻译: 允许在工作区域附近进行材料处理操作的生物危害减轻装置包括气动联接并且靠近工作区域的一侧的增压室,尺寸适于捕集生物危害并包括排气口的过滤器,包括入口 端口和排气口,以及将过滤器的排气口气动地联接到鼓风机的入口的导管,其中过滤器设置在增压室中,并且过滤器和增压室的相邻表面在表面积上基本相等。 如果需要,管道包括第一和第二管道,允许消声器设置在第一和第二管道之间。 还描述了操作该装置的方法。

    System and method for incorporating segmentation boundaries into the
calculation of fractal dimension features for texture discrimination
    2.
    发明授权
    System and method for incorporating segmentation boundaries into the calculation of fractal dimension features for texture discrimination 失效
    用于将分割边界并入到用于纹理鉴别的分形维数特征的计算中的系统和方法

    公开(公告)号:US5671294A

    公开(公告)日:1997-09-23

    申请号:US308112

    申请日:1994-09-15

    IPC分类号: G06T7/40 G06K9/62 G06K9/74

    摘要: Image analysis is performed by defining segmentation boundaries within an image by using wavelet theory or some other suitable method. Such boundaries can be incomplete, irregular, and/or multi-valued. The segmentation boundaries are then incorporated into feature calculations related to fractal dimensions for each pixel using a diffusion related method or a Dijkstra potential related method. These features are then used in statistical techniques to distinguish among textures or classes of interest. The system performing the image analysis is trained (or supervised) on data from different classes within an image or images. This enables the system to then later identify these classes in different images. The system can be used for Computer Aided Diagnosis (CAD) of mammograms or other medical imagery.

    摘要翻译: 通过使用小波理论或其他一些合适的方法在图像内定义分割边界来执行图像分析。 这种边界可能是不完整的,不规则的和/或多重的。 然后使用扩散相关方法或Dijkstra势相关方法将分割边界并入与每个像素的分形维数相关的特征计算。 然后将这些特征用于统计技术以区分感兴趣的纹理或类别。 执行图像分析的系统针对图像或图像内不同类别的数据进行训练(或监督)。 这使得系统随后能够在不同的图像中识别这些类。 该系统可用于乳房X线照片或其他医学图像的计算机辅助诊断(CAD)。