System and method for determining cursor speed in a puck-based pointing device
    1.
    发明申请
    System and method for determining cursor speed in a puck-based pointing device 审中-公开
    用于确定基于冰球的指点设备中的光标速度的系统和方法

    公开(公告)号:US20080042974A1

    公开(公告)日:2008-02-21

    申请号:US11506245

    申请日:2006-08-17

    IPC分类号: G09G5/08

    摘要: A pointing device includes a moveable puck, a first surface on which a puck field of motion is defined, and a controller. The total distance the puck can move from its centered or resting position is divided into N regions using one or more transition points. Each transition point corresponds to a puck position at which the cursor speed changes. The controller determines the position of the puck within the puck field of motion and, based on the current puck position and at least one transition point, the controller determines a speed at which the cursor is to be moved.

    摘要翻译: 指示装置包括可移动的圆盘,其上限定了运动场的第一表面和控制器。 圆盘可以从其居中或静止位置移动的总距离使用一个或多个过渡点分成N个区域。 每个过渡点对应于光标速度变化的圆顶位置。 所述控制器确定所述圆盘在所述圆盘运动范围内的位置,并且基于所述当前的圆盘位置和至少一个转变点,所述控制器确定所述光标将被移动的速度。

    Method of and Apparatus for Image Enhancement
    4.
    发明申请
    Method of and Apparatus for Image Enhancement 审中-公开
    图像增强的方法和装置

    公开(公告)号:US20130329004A1

    公开(公告)日:2013-12-12

    申请号:US13492302

    申请日:2012-06-08

    IPC分类号: H04N5/217 H04N7/00

    摘要: Image enhancement by separating the image signals, either Y or RGB, into a series of bands and performing noise reduction on bands below a given frequency but not on bands above that frequency. The bands are summed to develop the image enhanced signals. This results in improved sharpness and masking of image processing pipeline artifacts. Chroma signals are not separated into bands but have noise reduction applied to the full bandwidth signals. The higher frequency band is attenuated or amplified based on light level. The noise reduction has thresholds based on measured parameters, such as signal frequency, gain and light level, provided in a lookup table. The window size used for the noise reduction varies with the light level as well, smaller windows sizes being used in bright light and increasing window sizes as light levels decrease. Panoramic images are handled in a similar fashion.

    摘要翻译: 通过将Y或RGB图像信号分离成一系列频带并在低于给定频率但不超过该频率的频带上进行降噪的图像增强。 将频带相加以开发图像增强信号。 这导致改进的图像处理管道伪像的锐度和掩蔽。 色度信号不被分离成带,而是将噪声降低应用于全带宽信号。 较高的频带基于光级衰减或放大。 噪声降低具有基于测量参数的阈值,例如在查找表中提供的信号频率,增益和光级。 用于降噪的窗户尺寸也随着光线水平而变化,较小的窗户尺寸用于明亮的光线,并随着光线水平的降低而增加窗口尺寸。 全景图像以类似的方式处理。

    Slide pad system and method
    5.
    发明授权
    Slide pad system and method 有权
    滑垫系统和方法

    公开(公告)号:US07349822B2

    公开(公告)日:2008-03-25

    申请号:US11021290

    申请日:2004-12-23

    IPC分类号: G06F15/00 G09G5/00

    CPC分类号: G06F3/044 G05G2009/04714

    摘要: A method performed by a slide pad system is provided. The method includes generating a first direction measurement using a first capacitance measurement, generating a calibration measurement using a second capacitance measurement, and computing a first position using the first direction measurement and the calibration measurement. A system including a slide pad including a slide disk, a sense module, and a control module is also provided.

    摘要翻译: 提供了一种由滑垫系统执行的方法。 该方法包括使用第一电容测量产生第一方向测量,使用第二电容测量产生校准测量,以及使用第一方向测量和校准测量来计算第一位置。 还提供了包括滑动盘,感测模块和控制模块的系统。

    Color interpolation for image sensors using a local linear regression method
    6.
    发明授权
    Color interpolation for image sensors using a local linear regression method 失效
    使用局部线性回归法对图像传感器进行颜色插值

    公开(公告)号:US07079705B2

    公开(公告)日:2006-07-18

    申请号:US10284696

    申请日:2002-10-30

    CPC分类号: H04N9/045

    摘要: An image processing system and demosaicing method are provided to calculate estimated missing color sensor values in an image using a linear prediction from the raw color sensor value at the current pixel location. The raw image is divided into regions of sensor values, and the linear relations between color planes for each region are determined by a regression method that calculates the degree to which different color planes co-vary within each region The missing color sensor values per region are calculated as a scaled and shifted version of the raw color sensor values using linear regression coefficients determined from the local linear regression process.

    摘要翻译: 提供图像处理系统和去马赛克方法,以使用来自当前像素位置处的原始颜色传感器值的线性预测来计算图像中估计的丢失颜色传感器值。 原始图像被划分为传感器值的区域,并且通过回归方法确定每个区域的色彩平面之间的线性关系,该方法计算不同颜色平面在每个区域内共同变化的程度每个区域的缺失颜色传感器值为 使用从局部线性回归过程确定的线性回归系数作为原始颜色传感器值的缩放和偏移版本计算。

    Method of fast bi-cubic interpolation of image information
    7.
    发明授权
    Method of fast bi-cubic interpolation of image information 失效
    图像信息快速双三次插值的方法

    公开(公告)号:US06320593B1

    公开(公告)日:2001-11-20

    申请号:US09296194

    申请日:1999-04-20

    IPC分类号: G09G504

    摘要: A method for interpolating a first color value associated with a first color and a second color value associated with a second color for use in generating a pixel that represents a portion of a digital image, based on a third color value that is associated with a third color. A first matrix is created and stored, comprising first coefficient values that are associated with a other values of the first color for pixels that surround the current pixel of interest. A second matrix is stored that holds second coefficient values that are associated with a second color value. Each of the first coefficient values is bitwise shifted by a pre-determined power of 2. The first color value is created and stored by applying the first coefficient values to the other values of the first color using a bitwise shift operation. The first color value is bitwise shifted by a complement of the pre-determined power of 2. As a result, a complete set of pixel values having three color values (such as Red, Green, and Blue) are created and may be used in displaying the digital image.

    摘要翻译: 一种用于内插与第一颜色相关联的第一颜色值和与第二颜色相关联的第二颜色值的方法,用于基于与第三颜色相关联的第三颜色值来生成表示数字图像的一部分的像素 颜色。 创建并存储第一矩阵,其包括与围绕当前感兴趣像素的像素的第一颜色的其他值相关联的第一系数值。 存储第二矩阵,其保存与第二颜色值相关联的第二系数值。 第一系数值中的每一个按照2的预定功率按位移位。通过使用按位移位操作将第一系数值应用于第一颜色的其它值来创建和存储第一颜色值。 第一颜色值按预定功率的2的补码按位移位。结果,创建具有三个颜色值(例如红色,绿色和蓝色)的完整像素值集合,并且可以用于 显示数字图像。

    Diminishing variance process for real-time reduction of motion artifacts
in MRI
    8.
    发明授权
    Diminishing variance process for real-time reduction of motion artifacts in MRI 失效
    减少MRI中运动伪像的实时方差过程

    公开(公告)号:US5427101A

    公开(公告)日:1995-06-27

    申请号:US286049

    申请日:1994-08-04

    摘要: A method whereby motion can be detected in real time during the acquisition of MRI data. This enables the implementation of several algorithms to reduce or eliminate this motion from an image as it is being acquired. The method is an extension of the acceptance/rejection method algorithm called the diminishing variance algorithm (DVA). With this method, a complete set of preliminary data is acquired along with information about the relative motion position of each frame of data. After all the preliminary data is acquired, the position information is used to determine which lines are most corrupted by motion. Frames of data are then reacquired, starting with the most corrupted frame. The position information is continually updated in an iterative process, therefore each subsequent reacquisition is always done on the worst frame of data. The algorithm has been implemented on several different types of sequences, and preliminary in vivo studies indicate that motion artifacts are dramatically reduced.

    摘要翻译: 可以在获取MRI数据期间实时地检测运动的方法。 这使得能够实现几种算法以在图像被获取时减少或消除该运动。 该方法是称为递减方差算法(DVA)的接受/拒绝方法算法的扩展。 利用该方法,获取一组完整的初步数据以及关于每帧数据的相对运动位置的信息。 在获取所有初步数据之后,位置信息用于确定哪些行被运动损坏最多。 然后重新获取数据帧,从最坏的帧开始。 位置信息在迭代过程中不断更新,因此每个后续的重新捕获总是在最差的数据帧上完成。 该算法已经在几种不同类型的序列上实现,并且初步的体内研究表明,运动伪像被大大减少。

    Image registration using sliding registration windows
    9.
    发明授权
    Image registration using sliding registration windows 有权
    使用滑动注册窗口的图像注册

    公开(公告)号:US09247133B2

    公开(公告)日:2016-01-26

    申请号:US13151149

    申请日:2011-06-01

    摘要: This disclosure pertains to devices, methods, and computer readable media for performing image registration. A few generalized steps may be used to carry out the image registration techniques described herein: 1) acquiring image data from an image sensor; 2) selecting a pair of overlapping image portions from the acquired image data for registration; 3) determining an area of “maximum energy” in one of the image portions being registered; 4) placing an image registration window over both image portions at the determined location of maximum energy; 5) registering the overlapping image portions using only the image data falling within the image registration windows; and 6) determining, according to one or more metrics, whether the image registration window should be shifted from a current location before registering subsequently acquired image portions.

    摘要翻译: 本公开涉及用于执行图像配准的设备,方法和计算机可读介质。 可以使用一些通用步骤来执行本文所述的图像配准技术:1)从图像传感器获取图像数据; 2)从所获取的图像数据中选择一对重叠图像部分用于登记; 3)确定正在登记的图像部分之一中的“最大能量”的面积; 4)在确定的最大能量的位置处在两个图像部分上放置图像配准窗口; 5)仅使用落在图像配准窗口内的图像数据来登记重叠图像部分; 以及6)根据一个或多个度量确定在登记随后获取的图像部分之前图像配准窗口是否应当从当前位置移位。

    One dimensional and three dimensional extensions of the slide pad
    10.
    发明授权
    One dimensional and three dimensional extensions of the slide pad 失效
    滑块的一维和三维延伸

    公开(公告)号:US07616195B2

    公开(公告)日:2009-11-10

    申请号:US11051107

    申请日:2005-02-04

    申请人: Todd S. Sachs

    发明人: Todd S. Sachs

    IPC分类号: G06F3/044

    CPC分类号: G06F3/044 G06F3/03548

    摘要: In one embodiment of the invention, a method for providing three-dimensional motion inputs to a device includes measuring characteristics (e.g., capacitances) between sense electrodes and a reference electrode on a movable pad, determining three-dimensional displacements of the movable pad from the capacitances, determining the three-dimensional motion inputs from the three-dimensional displacements of the movable pad, and providing the three-dimensional motion inputs to the device.In another embodiment of the invention, a pointing device mounted on a surface of a host device includes sense electrodes, a frame, a movable pad flexibly mounted in an opening of the frame. The movable pad includes a reference electrode opposite the sense electrodes. The opening limits the motion of the movable pad to a single axis on the surface and to an axis into the surface.

    摘要翻译: 在本发明的一个实施例中,用于向设备提供三维运动输入的方法包括测量感测电极和可移动​​垫上的参考电极之间的特性(例如,电容),确定可移动垫的三维位移 电容,从可移动衬垫的三维位移确定三维运动输入,以及向装置提供三维运动输入。 在本发明的另一个实施例中,安装在主机设备表面上的指示装置包括感测电极,框架,柔性地安装在框架的开口中的可移动垫片。 可动衬垫包括与感测电极相对的参考电极。 开口将可移动垫的运动限制在表面上的单个轴线和限制到表面的轴线。