3D drawing and painting system with a 3D scalar field
    33.
    发明授权
    3D drawing and painting system with a 3D scalar field 有权
    3D绘图系统与3D标量场

    公开(公告)号:US08988461B1

    公开(公告)日:2015-03-24

    申请号:US13353249

    申请日:2012-01-18

    IPC分类号: G09G5/00 G06T15/50 G06T15/60

    摘要: Rendering 3D paintings can be done by compositing strokes embedded in space. Users input strokes and other image elements using an input device that specifies a 2D view of the element, and the system provides the 3D position of the element based on rules and processes, some of which allow for user input of high level parameters, thereby allowing for intuitive and quick entry of 3D elements, and a 3D scalar field. The artist can treat the full 3D space as a canvas. Strokes painted in a 2D viewport window are embedded in 3D space in a way that gives creative freedom to the artist while maintaining an acceptable level of controllability. The canvas need not be tied to any particular object already in a scene, but the canvas can be dependent on, or a function of, another object. An implicit canvas can be defined by the 3D scalar field.

    摘要翻译: 渲染3D绘画可以通过合成嵌入在空间中的笔画来完成。 用户使用指定元素的2D视图的输入设备输入笔画和其他图像元素,并且系统基于规则和过程提供元素的3D位置,其中一些允许用户输入高级参数,从而允许 用于直观和快速地输入3D元素,以及3D标量字段。 艺术家可以将完整的3D空间视为画布。 在2D视口窗口中绘制的笔画嵌入在3D空间中,可以为艺术家创造自由,同时保持可接受的可控性水平。 画布不需要绑定到场景中已经存在的任何特定对象,而画布可以依赖于另一个对象的功能。 隐式画布可以由3D标量字段定义。

    Spacecraft position estimating system and method
    35.
    发明授权
    Spacecraft position estimating system and method 有权
    航天器位置估算系统及方法

    公开(公告)号:US08749431B2

    公开(公告)日:2014-06-10

    申请号:US13055163

    申请日:2009-07-23

    IPC分类号: G01S19/00

    摘要: A system for estimating a spacecraft (6) position is disclosed. It includes receiving stations (4) for receiving signals transmitted from the spacecraft (6) and a processing station (2) for receiving data from the receiving stations (4). Each receiving station (4) records, during a recording window (8), the signals transmitted from the spacecraft (6) and transmits, to the processing station (2), data representing the recorded signals during the recording window (8). The recording windows (8) associated with each of the receiving stations (4) are offset and/or of different size with respect to each other. The processing station (2) correlates the recorded signals to estimate the distance difference between the spacecraft (6) and each of a plurality of receiving stations and to estimate the spacecraft (6) position. A method, a receiving station (4), a processing station (2) and a computer program are also disclosed.

    摘要翻译: 公开了一种用于估计航天器(6)位置的系统。 它包括用于接收从航天器(6)发送的信号的接收站(4)和用于从接收站(4)接收数据的处理站(2)。 每个接收站(4)在记录窗口(8)期间记录从航天器(6)发送的信号,并且在记录窗(8)期间将表示记录信号的数据发送到处理站(2)。 与每个接收站(4)相关联的记录窗(8)相对于彼此偏移和/或不同大小。 处理站(2)将记录的信号相关联以估计航天器(6)与多个接收站中的每一个之间的距离差并估计航天器(6)的位置。 还公开了一种方法,接收站(4),处理站(2)和计算机程序。

    System and method for invariant-based normal estimation
    37.
    发明授权
    System and method for invariant-based normal estimation 有权
    用于基于不变量的正态估计的系统和方法

    公开(公告)号:US08611674B1

    公开(公告)日:2013-12-17

    申请号:US12689172

    申请日:2010-01-18

    IPC分类号: G06K9/68

    CPC分类号: G06K9/68 G06K9/4661 G06T15/50

    摘要: A computer-implemented method for invariant-based normal estimation. The method includes calculating a set of measured invariants for a point associated with a surface of an object, where the set of measured invariants is based on pixel information that includes lighting information, calculating one or more sets of estimated invariants for the point associated with the surface of the object, where each set of estimated invariants is based on a known lighting environment for the object and a different normal for the point associated with the surface of the object, and determining a first normal for the point associated with the surface of the object that results in the set of measured invariants corresponding to a first set of estimated invariants.

    摘要翻译: 一种用于基于不变量的正态估计的计算机实现方法。 该方法包括计算与对象表面相关联的点的一组测量不变量,其中所测量的不变量集合基于包括照明信息的像素信息,为与该对象相关联的点计算一组或多组估计不变量 对象的表面,其中每组估计的不变量基于用于对象的已知照明环境和与对象的表面相关联的点的不同法线,以及确定与该对象的表面相关联的点的第一法线 对象,其导致对应于第一组估计不变量的测量不变量集合。

    Cellular wireless LAN with frequency division multiplex in TV white space
    38.
    发明授权
    Cellular wireless LAN with frequency division multiplex in TV white space 有权
    蜂窝无线局域网在电视空白区域进行频分复用

    公开(公告)号:US08594120B2

    公开(公告)日:2013-11-26

    申请号:US13045268

    申请日:2011-03-10

    IPC分类号: H04L12/413

    摘要: Systems, methods, and devices for operating a multiplex wireless local area network using separated uplink and downlink channels in the 802.11 and television white space (TVWS) spectra are disclosed. Opportunistic detection and use of available TVWS frequency channels allows for fixed and mobile wireless devices to more efficiently use the available wireless bandwidth. By using separated uplink and downlink channels, a fixed wireless device can listen to incoming uplink frames from other mobile and fixed wireless devices and monitor for uplink frame collisions. In the event of an uplink frame collision, the fixed wireless device can immediately send a stop frame in the downlink channel to all involved wireless devices to avoid lost channel time due to the delay caused by most acknowledgement-based collision recovery protocols. Similarly, communicating mobile and fixed wireless devices can transmit and receive data frames in both directions simultaneously.

    摘要翻译: 公开了在802.11和电视空白(TVWS)频谱中使用分离的上行链路和下行链路信道操作多路复用无线局域网的系统,方法和装置。 机会检测和使用可用的TVWS频道允许固定和移动无线设备更有效地使用可用的无线带宽。 通过使用分离的上行链路和下行链路信道,固定无线设备可以监听来自其他移动和固定无线设备的传入上行链路帧,并监视上行链路帧冲突。 在上行链路帧冲突的情况下,固定无线设备可以立即向所有相关的无线设备发送下行链路信道中的停止帧,以避免由于大多数基于确认的冲突恢复协议引起的延迟导致的信道时间丢失。 类似地,通信移动和固定无线设备可以同时在两个方向上发送和接收数据帧。

    Perceptually-based compensation of unintended light pollution of images for projection display systems
    39.
    发明授权
    Perceptually-based compensation of unintended light pollution of images for projection display systems 有权
    基于感知的投影显示系统图像意外的光污染补偿

    公开(公告)号:US08570319B2

    公开(公告)日:2013-10-29

    申请号:US12828137

    申请日:2010-06-30

    IPC分类号: G06T15/00

    摘要: Where images are displayed such that unintended light is also included and that light cannot be fully subtracted from the displayed image, an image processor compensates by compensating for the remaining light using perceptual models. In some cases, the perceptual model includes a plurality of user sensitivities and computation is performed, at least in part, based on expected user sensitivity to light pollution in portions of the images. The perceptual model might include a contrast sensitivity function, threshold-vs-intensity, saliency prediction and visual masking. The model might include artist indications of view attention. A light pollution likelihood map might be used to reduce the amount of computation needed, using a likelihood measure to determine an amount of computation to perform.

    摘要翻译: 在显示图像的情况下,还包括非预期的光,并且不能从显示的图像中完全减去光,图像处理器通过使用感知模型补偿剩余光来补偿。 在一些情况下,感知模型包括多个用户敏感度,并且至少部分地基于图像的一部分中对光污染的预期用户敏感度来执行计算。 感知模型可能包括对比敏感度函数,阈值vs强度,显着性预测和视觉掩蔽。 该模型可能包括观众关注的艺术家指示。 可以使用光污染可能性图来减少所需的计算量,使用似然度量来确定要执行的计算量。

    Device and method for computer-assisted learning
    40.
    发明授权
    Device and method for computer-assisted learning 有权
    计算机辅助学习的设备和方法

    公开(公告)号:US08348670B2

    公开(公告)日:2013-01-08

    申请号:US12179653

    申请日:2008-07-25

    IPC分类号: G09B1/00

    CPC分类号: G09B17/003 G09B5/06 G09B7/08

    摘要: A method for the computer-assisted learning of orthography, the method includes executing the following steps by a data processing system: retrieving (11) a main set of words from a data storage; retrieving (12) an error data set associated with said main set of words from the data storage; repeatedly executing the following steps: selecting (13) a word to prompt the user with, by computing, for each word from the error data set, a statistic measure related to the probability of an error occurring in the word, and selecting the word which has the maximum value of the statistic measure; prompting (14) the user with the word; accepting (15) a user input specifying a sequence of symbols; comparing (16) the user input with the word; updating (17, 18) and storing the error data set.

    摘要翻译: 一种用于计算机辅助学习正字法的方法,所述方法包括:通过数据处理系统执行以下步骤:从数据存储器检索(11)主组词; 从数据存储器检索(12)与所述主组词相关联的错误数据集; 重复执行以下步骤:选择(13)一个单词以通过计算来自错误数据集的每个单词来提示用户与该单词中出现错误概率有关的统计量度量,并且选择 具有统计量的最大值; 提示(14)用户的单词; 接受(15)指定符号序列的用户输入; 比较(16)用户输入与单词; 更新(17,18)并存储错误数据集。