Hybrid Technique for Coherent Anti-Stokes/Stokes Raman Spectroscopy
    22.
    发明申请
    Hybrid Technique for Coherent Anti-Stokes/Stokes Raman Spectroscopy 审中-公开
    相干反斯托克斯/斯托克斯拉曼光谱的混合技术

    公开(公告)号:US20100027000A1

    公开(公告)日:2010-02-04

    申请号:US12259831

    申请日:2008-10-28

    IPC分类号: G01J3/44

    CPC分类号: G01J3/44

    摘要: A method and system provide coherent anti-Stokes Raman spectroscopy. In an embodiment, the system includes a detection system for measuring coherent anti-Stokes Raman signals of a sample. The system includes a first light pulse and a second light pulse. The first light pulse and the second light pulse are operable to initiate coherent vibration in the sample. The system also includes a third light pulse. The third light pulse is a probe pulse that is operable to produce scattered radiation from the sample. In addition, the system includes a spectral filter. The spectral filter shapes the probe pulse. The system further includes a detector to record the spectrum of the scattered radiation.

    摘要翻译: 一种方法和系统提供相干的反斯托克斯拉曼光谱。 在一个实施例中,该系统包括用于测量样品的相干反斯托克斯拉曼信号的检测系统。 该系统包括第一光脉冲和第二光脉冲。 第一光脉冲和第二光脉冲可操作以引发样品中的相干振动。 该系统还包括第三个光脉冲。 第三光脉冲是可操作以产生来自样品的散射辐射的探针脉冲。 另外,该系统包括一个光谱滤波器。 光谱滤波器对探针脉冲进行整形。 该系统还包括用于记录散射辐射的光谱的检测器。

    Surface detail rendering using leap textures
    23.
    发明授权
    Surface detail rendering using leap textures 失效
    使用跳跃纹理的表面细节渲染

    公开(公告)号:US07586494B2

    公开(公告)日:2009-09-08

    申请号:US11276931

    申请日:2006-03-17

    IPC分类号: G09G5/00

    CPC分类号: G06T15/04

    摘要: The present surface detail rendering technique provides an efficient technique for applying a mesostructure to a macrostructure for an object that minimizes the amount of memory required for pre-computed data. A leap texture is pre-computed for a mesostructure by classifying each voxel in the mesostructure geometry and assigning a value in the leap texture based upon the classification. The value in the leap texture represents a distance to jump along a ray cast in any view direction when a model is decorated with the mesostructure geometry.

    摘要翻译: 目前的表面细节渲染技术提供了一种将介观结构应用于最小化预先计算数据所需的存储量的对象的宏结构的有效技术。 通过对介观结构几何中的每个体素进行分类,并根据分类在跳跃纹理中分配一个值,为中孔结构预先计算飞跃纹理。 跳跃纹理中的值表示当模型用介观结构几何形状装饰时沿着任何视图方向投射的光线跳跃的距离。

    View-dependent displacement mapping
    24.
    发明授权
    View-dependent displacement mapping 有权
    视图相关的位移映射

    公开(公告)号:US07545375B2

    公开(公告)日:2009-06-09

    申请号:US11679275

    申请日:2007-02-27

    IPC分类号: G06T15/10

    CPC分类号: G06T15/04

    摘要: A computer implemented method for generating a representation of structure for use in rendering a synthesized image is provided. The representation is a view-dependent displacement mapping that represents displacements along a viewing direction. This view dependency allows the representation to be used to determine self shadows as well as shading, occlusion and silhouettes when used during rendering for synthesis.

    摘要翻译: 提供了一种用于生成用于渲染合成图像的结构的表示的计算机实现的方法。 该表示是视图相关的位移映射,其表示沿观察方向的位移。 该视图依赖性允许在用于合成的渲染期间使用表示来确定自身阴影以及阴影,遮挡和剪影。

    VIEW-DEPENDENT DISPLACEMENT MAPPING
    25.
    发明申请
    VIEW-DEPENDENT DISPLACEMENT MAPPING 有权
    查看依赖位移映射

    公开(公告)号:US20070297646A1

    公开(公告)日:2007-12-27

    申请号:US11679275

    申请日:2007-02-27

    IPC分类号: G06K9/00

    CPC分类号: G06T15/04

    摘要: A computer implemented method for generating a representation of structure for use in rendering a synthesized image is provided. The representation is a view-dependent displacement mapping that represents displacements along a viewing direction. This view dependency allows the representation to be used to determine self shadows as well as shading, occlusion and silhouettes when used during rendering for synthesis.

    摘要翻译: 提供了一种用于生成用于渲染合成图像的结构的表示的计算机实现的方法。 该表示是视图相关的位移映射,其表示沿观察方向的位移。 该视图依赖性允许在用于合成的渲染期间使用表示来确定自身阴影以及阴影,遮挡和剪影。

    View dependent displacement mapping
    26.
    发明授权
    View dependent displacement mapping 有权
    查看依赖位移图

    公开(公告)号:US07196711B2

    公开(公告)日:2007-03-27

    申请号:US10698909

    申请日:2003-10-31

    IPC分类号: G09G5/00

    CPC分类号: G06T15/04

    摘要: A computer implemented method for generating a representation of structure for use in rendering a synthesized image is provided. The representation is a view-dependent displacement mapping that represents displacements along a viewing direction. This view dependency allows the representation to be used to determine self shadows as well as shading, occlusion and silhouettes when used during rendering for synthesis.

    摘要翻译: 提供了一种用于生成用于渲染合成图像的结构的表示的计算机实现的方法。 该表示是视图相关的位移映射,其表示沿观察方向的位移。 该视图依赖性允许在用于合成的渲染期间使用表示来确定自身阴影以及阴影,遮挡和剪影。

    Real-time texture rendering using generalized displacement maps
    27.
    发明申请
    Real-time texture rendering using generalized displacement maps 有权
    使用广义位移图进行实时纹理渲染

    公开(公告)号:US20050280646A1

    公开(公告)日:2005-12-22

    申请号:US10965603

    申请日:2004-10-13

    CPC分类号: G06T15/04

    摘要: A “mesostructure renderer” uses pre-computed multi-dimensional “generalized displacement maps” (GDM) to provide real-time rendering of general non-height-field mesostructures on both open and closed surfaces of arbitrary geometry. In general, the GDM represents the distance to solid mesostructure along any ray cast from any point within a volumetric sample. Given the pre-computed GDM, the mesostructure renderer then computes mesostructure visibility jointly in object space and texture space, thereby enabling both control of texture distortion and efficient computation of texture coordinates and shadowing. Further, in one embodiment, the mesostructure renderer uses the GDM to render mesostructures with either local or global illumination as a per-pixel process using conventional computer graphics hardware to accelerate the real-time rendering of the mesostructures. Further acceleration of mesostructure rendering is achieved in another embodiment by automatically reducing the number of triangles in the rendering pipeline according to a user-specified threshold for acceptable texture distortion.

    摘要翻译: “mesostructure渲染器”使用预先计算的多维“广义位移图”(GDM),以便在任意几何的开放和闭合表面上提供一般非高度场介观结构的实时渲染。 一般来说,GDM表示沿着体积样品内的任何点的任何射线投射到固体介观结构的距离。 给定预先计算的GDM,然后,介观结构渲染器在对象空间和纹理空间中联合计算介观结构可见度,从而实现纹理失真的控制和纹理坐标和阴影的有效计算。 此外,在一个实施例中,使用传统计算机图形硬件的介面结构渲染器使用GDM来渲染具有局部或全局照明的介观结构作为每像素处理,以加速介观结构的实时渲染。 在另一个实施例中,通过根据用户指定的可接受纹理失真的阈值自动减少渲染流水线中的三角形数量来实现进一步加速的介观结构渲染。

    MULTIROTOR AERIAL VEHICLE WITH TILTABLE ROTOR

    公开(公告)号:US20240253778A1

    公开(公告)日:2024-08-01

    申请号:US18102714

    申请日:2023-01-28

    申请人: Xi Wang

    发明人: Xi Wang

    IPC分类号: B64C29/00 B64C9/00 B64C27/22

    摘要: A VTOL (vertical take-off and landing) rotorcraft with distributed propulsion system having the capability to convert to airplane flight. The rotorcraft includes a fuselage, a tail boom or tail fin, a pair of wings, a pair of transversally extended forward pivotable rotor booms, a plurality of forward proprotor mounted to the pivotable rotor booms, a plurality of rear lift rotor mounted to the tail boom, and a stabilizer mounted on the tail boom or tail fin. The proprotor and lift rotor can be open rotor or ducted rotor design. The proprotors in a first configuration and lift rotors provide thrust vector for VTOL (vertical take-off and landing) flight. Moreover, the proprotors in a second configuration provide the forward propulsive thrust in airplane flight.

    VTOL ROTORCRAFT WITH ANNULAR CONTRA-ROTATING ROTARY WINGS AND AUXILIARY PROPULSOR

    公开(公告)号:US20230140370A1

    公开(公告)日:2023-05-04

    申请号:US17515549

    申请日:2021-11-01

    申请人: Xi Wang

    发明人: Xi Wang

    摘要: The invention is for a VTOL (vertical take-off and landing) rotorcraft with the annular contra-rotating rotary wings and auxiliary propulsor. The rotary wing of the annular contra-rotating rotary wings is driven by a plurality of tangential forces applied at multiple locations of the inner hub or at the tip of the blade. The annular contra-rotating rotary wings can be shrouded with a nacelle for the improvement of propulsive efficiency, reduction of noise and protection of the rotary wing. The fuselage is mounted along the center axis of the rotary to be outside of the thrust slipstream. The auxiliary propulsor includes a quad independent pusher propeller to propel the rotorcraft to reach faster forward speed.

    Method and device for extracting scintillation pulse information

    公开(公告)号:US09772408B2

    公开(公告)日:2017-09-26

    申请号:US14112535

    申请日:2011-05-10

    IPC分类号: G01T1/20 G01T1/17

    CPC分类号: G01T1/2006 G01T1/17

    摘要: A method for extracting scintillation pulse information includes followed steps: 1. obtaining a peak value of the scintillation pulse in a certain energy spectrum, and setting at least three threshold voltages according to the peak value; 2. determining the time when the scintillation pulse passes through the each threshold voltage, wherein each time value and its corresponding threshold voltage form a sampling point; 3. selecting multiple sampling points as sampling points for reconstructing and reconstructing pulse waveform; 4. obtaining the data of original scintillation pulse by using reconstructed pulse waveform. A device for extracting scintillation pulse information includes a threshold voltage setting module (100), a time sampling module (200), a pulse reconstruction module (300) and an information acquiring module (400).