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    Bidirectional freeze casting for fabricating lamellar structures
    3.
    发明授权
    Bidirectional freeze casting for fabricating lamellar structures 有权

    公开(公告)号：US10293521B2

    公开(公告)日：2019-05-21

    申请号：US15225580

    申请日：2016-08-01

    申请人： Hao Bai ,  Yuan Chen ,  Benjamin Delattre ,  Antoni P. Tomsia

    发明人： Hao Bai ,  Yuan Chen ,  Benjamin Delattre ,  Antoni P. Tomsia

    IPC分类号： B29C39/00 ,  B29C39/38 ,  B22F3/22 ,  B28B1/00 ,  B29L31/10 ,  B29K509/00

    摘要： This disclosure provides systems, methods, and apparatus related to freeze casting. In one aspect, a method comprises providing an apparatus. The apparatus comprises a container and a cooling surface. A bottom of the container comprises a wedge. The wedge comprises a first substantially planar surface and a second substantially planar surface with an angle between the first and the second substantially planar surfaces. An interior bottom of the container comprises the second substantially planar surface. The cooling surface is in contact with the first substantially planar surface. A slurry is deposited on the second substantially planar surface, the slurry comprising a plurality of particles in a liquid. The cooling surface is cooled to cool the slurry at a specified cooling rate.

    CAMERA REGISTRATION AND VIDEO INTEGRATION IN 3D GEOMETRY MODEL
    5.
    发明申请
    CAMERA REGISTRATION AND VIDEO INTEGRATION IN 3D GEOMETRY MODEL 审中-公开
    3D几何模型中的相机注册和视频集成

    公开(公告)号：US20140192159A1

    公开(公告)日：2014-07-10

    申请号：US14122324

    申请日：2011-06-14

    申请人： Henry Chen ,  Xiaoli Wang ,  Hao Bai ,  Saad J Ros ,  Tom Plocher

    发明人： Henry Chen ,  Xiaoli Wang ,  Hao Bai ,  Saad J Ros ,  Tom Plocher

    IPC分类号： G06T15/00

    CPC分类号： G06T15/00 ,  G06T15/20 ,  G06T19/006 ,  G06T2215/16

    摘要： Apparatus, systems, and methods may operate to receive a real image or real images of a coverage area of a surveillance camera. Building Information Model (BIM) data associated with the coverage area may be received. A virtual image may be generated using the BIM data. The virtual image may include at least one three-dimensional (3-D) graphics that substantially corresponds to the real image. The virtual image may be mapped with the real image. Then, the surveillance camera may be registered in a BIM coordination system using an outcome of the mapping.

    摘要翻译： 装置，系统和方法可以操作以接收监视摄像机的覆盖区域的真实图像或真实图像。 可以接收与覆盖区域相关联的建筑物信息模型（BIM）数据。 可以使用BIM数据生成虚拟图像。 虚拟图像可以包括基本上对应于真实图像的至少一个三维（3-D）图形。 虚拟图像可以与真实图像一起映射。 然后，可以使用映射的结果在BIM协调系统中注册监视摄像机。

    SENSOR PLACEMENT AND ANALYSIS USING A VIRTUAL ENVIRONMENT
    6.
    发明申请
    SENSOR PLACEMENT AND ANALYSIS USING A VIRTUAL ENVIRONMENT 有权
    传感器放置和使用虚拟环境的分析

    公开(公告)号：US20120197600A1

    公开(公告)日：2012-08-02

    申请号：US13017969

    申请日：2011-01-31

    申请人： Hao Bai ,  Henry Chen ,  Jian Geng Du ,  Tom Plocher

    发明人： Hao Bai ,  Henry Chen ,  Jian Geng Du ,  Tom Plocher

    IPC分类号： G06F17/10 ,  G06F17/50

    CPC分类号： G06T17/00 ,  G06T15/20 ,  G06T15/60 ,  G06T19/20 ,  G06T2215/12 ,  G06T2219/2012 ,  G08B13/1968 ,  G08B29/18

    摘要： A process for sensor placement and analysis using a virtual environment includes receiving into a computer processor a model of an area, a position in the model that represents a placement of a virtual sensor, and an orientation of the virtual sensor. A shadow map of the area is generated as a function of the position and orientation of the virtual sensor. The shadow map is used to determine one or more portions of the area that can be sensed by the virtual sensor. The area of the model that is covered as a function of the position and orientation of the virtual sensor is determined, and information relating to the area of the model that is covered as a function of the position and orientation of the virtual sensor is transmitted to an output device.

    摘要翻译： 用于使用虚拟环境进行传感器放置和分析的过程包括向计算机处理器接收区域的模型，模型中的表示虚拟传感器的位置的位置以及虚拟传感器的取向。 根据虚拟传感器的位置和方向产生该区域的阴影贴图。 阴影贴图用于确定可由虚拟传感器感测到的该区域的一个或多个部分。 确定作为虚拟传感器的位置和取向的函数被覆盖的模型的区域，并且将与作为虚拟传感器的位置和取向的函数所覆盖的模型的区域相关的信息被发送到 输出设备。

    Sensor placement and analysis using a virtual environment
    8.
    发明授权
    Sensor placement and analysis using a virtual environment 有权
    使用虚拟环境进行传感器放置和分析

    公开(公告)号：US08830230B2

    公开(公告)日：2014-09-09

    申请号：US13017969

    申请日：2011-01-31

    申请人： Hao Bai ,  Henry Chen ,  Jian Geng Du ,  Tom Plocher

    发明人： Hao Bai ,  Henry Chen ,  Jian Geng Du ,  Tom Plocher

    IPC分类号： G06T15/00 ,  G08B13/196 ,  G06T15/20

    CPC分类号： G06T17/00 ,  G06T15/20 ,  G06T15/60 ,  G06T19/20 ,  G06T2215/12 ,  G06T2219/2012 ,  G08B13/1968 ,  G08B29/18

    摘要： A process for sensor placement and analysis using a virtual environment includes receiving into a computer processor a model of an area, a position in the model that represents a placement of a virtual sensor, and an orientation of the virtual sensor. A shadow map of the area is generated as a function of the position and orientation of the virtual sensor. The shadow map is used to determine one or more portions of the area that can be sensed by the virtual sensor. The area of the model that is covered as a function of the position and orientation of the virtual sensor is determined, and information relating to the area of the model that is covered as a function of the position and orientation of the virtual sensor is transmitted to an output device.

    摘要翻译： 用于使用虚拟环境进行传感器放置和分析的过程包括向计算机处理器接收区域的模型，模型中的表示虚拟传感器的位置的位置以及虚拟传感器的取向。 根据虚拟传感器的位置和方向产生该区域的阴影贴图。 影子图用于确定虚拟传感器可以感测到的该区域的一个或多个部分。 确定作为虚拟传感器的位置和取向的函数被覆盖的模型的区域，并且将与作为虚拟传感器的位置和取向的函数所覆盖的模型的区域相关的信息被发送到 输出设备。

    SYSTEM AND METHOD FOR AUTOMATIC CAMERA PLACEMENT
    9.
    发明申请
    SYSTEM AND METHOD FOR AUTOMATIC CAMERA PLACEMENT 有权
    自动摄像机放置系统与方法

    公开(公告)号：US20120307067A1

    公开(公告)日：2012-12-06

    申请号：US13150965

    申请日：2011-06-01

    申请人： Henry Chen ,  Hao Bai ,  Tom Plocher ,  Hari Thiruvengada

    发明人： Henry Chen ,  Hao Bai ,  Tom Plocher ,  Hari Thiruvengada

    IPC分类号： H04N7/18

    CPC分类号： H04N7/181 ,  G08B13/19641

    摘要： A system for automatically determining the placement of cameras receives data relating to a plurality of polygons. T polygons represent one or more of a surveillance area, a non-surveillance area, a blank area, and an obstacle. The system selects one or more initial cameras, including one or more initial camera positions, initial camera orientations, and initial camera features, wherein the initial camera positions and the initial camera orientations cause one or more fields of view of the initial cameras to cover at least a part of the surveillance area. The system alters one or more of a number of cameras, an orientation of the cameras, a location of the cameras, a type of the cameras, and a crossover of two or more cameras. The system uses a fitness function to evaluate all of the cameras and all of the camera positions, and selects one or more cameras and the locations and orientations of the one or more cameras as a function of the fitness function.

    摘要翻译： 用于自动确定相机放置的系统接收与多个多边形有关的数据。 T多边形表示监视区域，非监视区域，空白区域和障碍物中的一个或多个。 该系统选择一个或多个初始照相机，包括一个或多个初始照相机位置，初始照相机方向和初始照相机特征，其中初始照相机位置和初始照相机方向使初始照相机的一个或多个视野覆盖在 至少部分监视区域。 该系统改变多个相机中的一个或多个，照相机的方向，相机的位置，相机的类型以及两个或更多个相机的交叉。 该系统使用适应度函数来评估所有摄像机和所有摄像机位置，并根据适应度函数选择一个或多个照相机以及一个或多个照相机的位置和取向。