System and method for real-time image retensioning and loop error correction
    11.
    发明授权
    System and method for real-time image retensioning and loop error correction 有权
    用于实时图像延迟和循环纠错的系统和方法

    公开(公告)号:US08437497B2

    公开(公告)日:2013-05-07

    申请号:US13015285

    申请日:2011-01-27

    IPC分类号: G06K9/00

    摘要: Due to an accumulated error from the pair-wise registration, the stitched image may be blurred or have a gap when a loop is encountered. In order to remove the accumulated error, we identify a closed loop where a first image frame overlaps with a second image frame, the second image frame being captured earlier in a scanning sequence than the first image frame; register the first image frame with the second image frame; and apply a global optimization to adjust registration parameters for the plurality of pair-wise registrations of image frames within the closed loop using global constraints.

    摘要翻译: 由于来自成对配准的累积误差,缝合图像可能会模糊,或者当遇到环路时具有间隙。 为了消除累积的误差,我们识别第一图像帧与第二图像帧重叠的闭环,第二图像帧以比第一图像帧更早的扫描顺序被捕获; 用第二个图像帧注册第一个图像帧; 并且使用全局约束来应用全局优化来调整闭环中的图像帧的多个成对注册的注册参数。

    Spray-dried transition metal zeolite and its use
    14.
    发明授权
    Spray-dried transition metal zeolite and its use 失效
    喷雾干燥的过渡金属沸石及其用途

    公开(公告)号:US07648936B2

    公开(公告)日:2010-01-19

    申请号:US12011659

    申请日:2008-01-29

    IPC分类号: B01J29/04

    摘要: A catalyst comprising a spray-dried transition metal zeolite and a noble metal is disclosed. The spray-dried transition metal zeolite comprises a transition metal zeolite and a binder. At least 50 wt. % of the binder is titania. The catalyst is used in a process to produce an epoxide by reacting an olefin, hydrogen, and oxygen. The catalyst is easy to filter from a slurry and produces a reduced level of hydrogenation products.

    摘要翻译: 公开了一种包含喷雾干燥的过渡金属沸石和贵金属的催化剂。 喷雾干燥的过渡金属沸石包括过渡金属沸石和粘合剂。 至少50wt。 粘合剂的%为二氧化钛。 催化剂用于通过使烯烃,氢和氧反应生成环氧化物的方法。 催化剂容易从浆料中过滤并产生降低的氢化产物水平。

    Method And Apparatus For Correcting Underexposed Digital Images
    15.
    发明申请
    Method And Apparatus For Correcting Underexposed Digital Images 审中-公开
    用于校正未曝光数字图像的方法和装置

    公开(公告)号:US20090263015A1

    公开(公告)日:2009-10-22

    申请号:US12104881

    申请日:2008-04-17

    申请人: Guoyi Fu

    发明人: Guoyi Fu

    IPC分类号: H04N5/228

    CPC分类号: H04N5/243

    摘要: A method of correcting an underexposed digital image comprises determining the stop of underexposure at which the digital image was captured, correcting for one integer stop of underexposure iteratively until the amount of underexposure correction is equal to the integer component of the determined stop of underexposure and correcting for any remaining fractional component of the determined stop of underexposure.

    摘要翻译: 校正曝光不足的数字图像的方法包括确定拍摄数字图像的曝光不足的停止,迭代地校正一次曝光不足的整数停止,直到曝光不足校正量等于所确定的曝光不足的整数分量,并且校正 对于所确定的曝光不足的停止的任何剩余分数分量。

    Estimating A Point Spread Function Of A Blurred Digital Image Using Gyro Data
    17.
    发明申请
    Estimating A Point Spread Function Of A Blurred Digital Image Using Gyro Data 审中-公开
    使用陀螺仪数据估计模糊数字图像的点扩散函数

    公开(公告)号:US20080100716A1

    公开(公告)日:2008-05-01

    申请号:US11838750

    申请日:2007-08-14

    申请人: Guoyi Fu Juwei Lu

    发明人: Guoyi Fu Juwei Lu

    IPC分类号: H04N5/228

    CPC分类号: H04N5/23248

    摘要: Methods for estimating a point spread function of a blurred digital image. One example method includes capturing gyro data during an image exposure time, deriving gyro samples from the gyro data at predetermined gyro sampling times, calculating a motion vector field of the image at each gyro sampling time, approximating an overall image scene motion path by averaging motion paths of selected pixels in the image, and estimating the point spread function from the approximated overall image scene motion path.

    摘要翻译: 用于估计模糊数字图像的点扩散函数的方法。 一个示例性方法包括在图像曝光时间期间捕获陀螺仪数据,在预定陀螺仪采样时间从陀螺仪数据导出陀螺仪样本,在每个陀螺仪采样时间计算图像的运动矢量场,通过平均运动近似整个图像场景运动路径 图像中的所选像素的路径,以及从近似的整体图像场景运动路径估计点扩散函数。

    Image noise reduction for digital images using Gaussian blurring
    20.
    发明授权
    Image noise reduction for digital images using Gaussian blurring 有权
    使用高斯模糊的数字图像的图像降噪

    公开(公告)号:US08442348B2

    公开(公告)日:2013-05-14

    申请号:US12266112

    申请日:2008-11-06

    申请人: Guoyi Fu

    发明人: Guoyi Fu

    IPC分类号: G06K9/40 G06K9/00

    CPC分类号: G06K9/40 G06K2209/01

    摘要: Disclosed are methods, devices, and computer program products for image noise reduction. In one example embodiment, a method for reducing noise in a digital image includes several acts. First, one or more objects are identified in an input image. Next, the input image or a portion thereof is processed to produce another image, which may be a blurred version of the input image. Finally, one or more objects in the processed image that correspond to the one or more objects identified in the input image are evaluated to determine whether to discard the one or more objects identified in the input image. For example, if an amount of energy preserved in an object after blurring is less than a threshold, the object may be discarded as noise.

    摘要翻译: 公开了用于图像降噪的方法,设备和计算机程序产品。 在一个示例实施例中,用于减少数字图像中的噪声的方法包括几个动作。 首先,在输入图像中识别一个或多个对象。 接下来,处理输入图像或其一部分以产生另一图像,其可以是输入图像的模糊版本。 最后,评估处理后的图像中与输入图像中识别的一个或多个对象相对应的一个或多个对象,以确定是否丢弃输入图像中识别的一个或多个对象。 例如,如果在模糊之后保留在对象中的能量的量小于阈值,则该对象可能被丢弃为噪声。