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26 条记录 (耗时 0.049 秒)

    Interface for model definition
    3.
    发明授权
    Interface for model definition 失效

    公开(公告)号：US6141009A

    公开(公告)日：2000-10-31

    申请号：US895051

    申请日：1997-07-16

    申请人： David Li ,  Jian Yang

    发明人： David Li ,  Jian Yang

    IPC分类号： G06K9/62 ,  G06F3/00

    CPC分类号： G06K9/6253

    摘要： A graphical user interface for a computer program enables a user to define a model representing a predefined ideal pattern of objects, the model being useful in analyzing an image of an actual pattern of discrete objects with respect to the model. In the interface, a fragment of the ideal pattern of objects is displayed, the displayed fragment including a graphical indicator of a key distance between objects in the fragment. A device which is visually associated in the fragment with the indicator enables the user to specify a value for the distance. The interface also includes a displayed image representing the pattern of objects, and an interactive device that enables a user to turn on or turn off an object in the image as an indication of its inclusion or exclusion in the pattern.

    Analyzing an image of an arrangement of discrete objects
    6.
    发明授权
    Analyzing an image of an arrangement of discrete objects 失效
    分析离散物体排列的图像

    公开(公告)号：US6130959A

    公开(公告)日：2000-10-10

    申请号：US997925

    申请日：1997-12-24

    申请人： David Li

    发明人： David Li

    IPC分类号： G06T7/00 ,  G06K9/42 ,  G06K9/80 ,  G06T7/60

    CPC分类号： G06T7/0006 ,  G06T7/0046 ,  G06T2207/30148 ,  G06T2207/30152

    摘要： An arrangement of discrete objects is analyzed. First and second characteristics are extracted from an actual arrangement of discrete objects and an ideal arrangement of points, respectively, and the first and second characteristics are compared. Each characteristic is invariant, to within an angular constant, under an affine transformation of the respective arrangement.

    摘要翻译： 分析离散物体的布置。 从离散对象的实际布置和点的理想布置中分别提取第一和第二特征，并且比较第一和第二特征。 在相应布置的仿射变换下，每个特征是恒定的，在一个角常数内。

    Classifying pixels of an image
    7.
    发明授权
    Classifying pixels of an image 失效
    分类图像的像素

    公开(公告)号：US6067376A

    公开(公告)日：2000-05-23

    申请号：US007943

    申请日：1998-01-16

    申请人： David Li

    发明人： David Li

    IPC分类号： G06K9/38 ,  G06T5/00 ,  G06K9/00

    CPC分类号： G06T7/0004 ,  G06K9/38 ,  G06T7/0081 ,  G06T2207/20144

    摘要： Pixels of an image are classified (e.g., into foreground and background pixels). In a set of possible values for the pixels, each value is able to serve as a threshold for classifying the pixels. From among the set, a value is selected for the threshold that causes the classification of the pixels to emphasize a characteristic of the image.

    摘要翻译： 图像的像素被分类（例如，到前景和背景像素）。 在像素的一组可能的值中，每个值都可以用作用于对像素进行分类的阈值。 从集合中，为阈值选择一个值，使得像素的分类强调图像的特征。

    Low cost, easy to build precision wavelength locker
    8.
    发明授权
    Low cost, easy to build precision wavelength locker 失效
    低成本，易于构建精密波长储物柜

    公开(公告)号：US5963686A

    公开(公告)日：1999-10-05

    申请号：US881241

    申请日：1997-06-24

    申请人： Yu Zheng ,  David Li ,  Xiaobing Luo

    发明人： Yu Zheng ,  David Li ,  Xiaobing Luo

    IPC分类号： G02B6/28 ,  G02B6/34 ,  G02B6/26

    CPC分类号： G02B6/4246 ,  G02B6/29361 ,  G02B6/2856

    摘要： A system and method providing a wavelength locker is disclosed. The method and system provide a high uniformity, low polarization sensitivity optical coupler. The optical coupler further comprises a first outer fiber and a second outer fiber. The first outer fiber and the second outer fiber each have a first portion. The method and system further provide a filter coupled to the first portion of the first outer fiber. The method and system further provide a first mechanism coupled to the filter for detecting intensity and providing a first resultant. The method and system further provide a second mechanism coupled to the second portion of the second outer fiber. The second mechanism detects intensity and provides a second resultant.

    摘要翻译： 公开了一种提供波长锁存器的系统和方法。 该方法和系统提供高均匀性，低偏振灵敏度的光耦合器。 光耦合器还包括第一外光纤和第二外光纤。 第一外纤维和第二外纤各自具有第一部分。 该方法和系统还提供耦合到第一外部光纤的第一部分的滤光器。 所述方法和系统还提供耦合到所述滤波器的第一机构，用于检测强度并提供第一结果。 所述方法和系统进一步提供耦合到第二外纤维的第二部分的第二机构。 第二机制检测强度并提供第二结果。

    AUGMENTED REALITY SYSTEM
    9.
    发明申请
    AUGMENTED REALITY SYSTEM 审中-公开

    公开(公告)号：US20200250889A1

    公开(公告)日：2020-08-06

    申请号：US16265382

    申请日：2019-02-01

    申请人： David Li

    发明人： David Li

    IPC分类号： G06T19/00 ,  G06T17/20 ,  G06T15/04 ,  G06T7/40 ,  G06T7/60 ,  G06T1/60 ,  G06T7/73 ,  G06T7/246 ,  G06T15/20

    摘要： The disclosure concerns an augmented reality method in which visual information concerning a real-world object, structure or environment is gathered and a deformation operation is performed on that visual information to generate virtual content that may be displayed in place of, or additionally to, real-time captured image content of the real-world object, structure or environment. Some particular embodiments concern the sharing of visual environment data and/or information characterizing the deformation operation between client devices.

    Adaptive code generator for satellite navigation receivers
    10.
    发明申请
    Adaptive code generator for satellite navigation receivers 有权
    用于卫星导航接收机的自适应码发生器

    公开(公告)号：US20070258511A1

    公开(公告)日：2007-11-08

    申请号：US11417965

    申请日：2006-05-03

    申请人： Jerry Knight ,  Charles Cahn ,  David Li

    发明人： Jerry Knight ,  Charles Cahn ,  David Li

    IPC分类号： H04B1/707

    CPC分类号： H04B1/707 ,  G01S19/30 ,  G01S19/33 ,  G01S19/37 ,  H04B2201/70707 ,  H04B2201/70715 ,  H04J13/00 ,  H04J13/10

    摘要： A satellite navigation device including a receiver having an adjustable code generator is described. The adjustable code generator is configurable to generate a set of spread-spectrum code signals. Each spread-spectrum code signal has a respective length corresponding to a repetition period. The set of spread-spectrum code signals includes first and second spread-spectrum code signals having distinct first and second lengths.

    摘要翻译： 描述了包括具有可调节代码生成器的接收器的卫星导航装置。 可调节码发生器可配置为产生一组扩频码信号。 每个扩频码信号具有对应于重复周期的相应长度。 扩频码信号的集合包括具有不同的第一和第二长度的第一和第二扩频码信号。