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    Method and system for video filtering with joint motion and noise estimation
    1.
    发明授权
    Method and system for video filtering with joint motion and noise estimation 有权
    具有联合运动和噪声估计的视频滤波方法和系统

    公开(公告)号：US07295616B2

    公开(公告)日：2007-11-13

    申请号：US10715039

    申请日：2003-11-17

    申请人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    发明人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    IPC分类号： H04N7/12

    CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20182

    摘要： A method for video filtering of an input video sequence by utilizing joint motion and noise estimation includes the steps of: (a) generating a motion-compensated video sequence from the input video sequence and a plurality of estimated motion fields; (b) spatiotemporally filtering the motion compensated video sequence, thereby producing a filtered, motion-compensated video sequence; (c) estimating a standard deviation from the difference between the input video sequence and the filtered, motion-compensated video sequence, thereby producing an estimated standard deviation; (d) estimating a scale factor from the difference between the input video sequence and the motion compensated video sequence; and (e) iterating through steps (a) to (d) using the scale factor previously obtained from step (d) to generate the motion-compensated video sequence in step (a) and using the estimated standard deviation previously obtained from step (c) to perform the filtering in step (b) until the value of the noise level approaches the unknown noise of the input video sequence, whereby the noise level is then characterized by a finally determined scale factor and standard deviation.

    摘要翻译： 一种通过利用联合运动和噪声估计对输入视频序列进行视频滤波的方法包括以下步骤：（a）从输入视频序列和多个估计运动场产生运动补偿视频序列; （b）对所述运动补偿视频序列进行时空滤波，从而产生经滤波的运动补偿视频序列; （c）从输入视频序列和滤波的运动补偿视频序列之间的差估计标准偏差，从而产生估计的标准偏差; （d）从输入视频序列和运动补偿视频序列之间的差估计比例因子; 和（e）使用先前从步骤（d）获得的比例因子重复步骤（a）至（d），以在步骤（a）中生成运动补偿视频序列，并使用先前从步骤（c）获得的估计标准偏差 ）以执行步骤（b）中的滤波，直到噪声电平的值接近输入视频序列的未知噪声，由此噪声电平然后由最终确定的比例因子和标准偏差来表征。

    Method and system for video filtering with joint motion and noise estimation
    2.
    发明申请
    Method and system for video filtering with joint motion and noise estimation 有权
    具有联合运动和噪声估计的视频滤波方法和系统

    公开(公告)号：US20050105627A1

    公开(公告)日：2005-05-19

    申请号：US10715039

    申请日：2003-11-17

    申请人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    发明人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    IPC分类号： G06T5/00 ,  H04N5/21 ,  H04N7/12

    CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20182

    摘要： A method for video filtering of an input video sequence by utilizing joint motion and noise estimation comprises the steps of: (a) generating a motion-compensated video sequence from the input video sequence and a plurality of estimated motion fields; (b) spatiotemporally filtering the motion compensated video sequence, thereby producing a filtered, motion-compensated video sequence; (c) estimating a standard deviation from the difference between the input video sequence and the filtered, motion-compensated video sequence, thereby producing an estimated standard deviation; (d) estimating a scale factor from the difference between the input video sequence and the motion compensated video sequence; and (e) iterating through steps (a) to (d) using the scale factor previously obtained from step (d) to generate the motion-compensated video sequence in step (a) and using the estimated standard deviation previously obtained from step (c) to perform the filtering in step (b) until the value of the noise level approaches the unknown noise of the input video sequence, whereby the noise level is then characterized by a finally determined scale factor and standard deviation.

    摘要翻译： 一种通过利用联合运动和噪声估计对输入视频序列进行视频滤波的方法包括以下步骤：（a）从输入视频序列和多个估计的运动场产生运动补偿视频序列; （b）对所述运动补偿视频序列进行时空滤波，从而产生经滤波的运动补偿视频序列; （c）从输入视频序列和滤波的运动补偿视频序列之间的差估计标准偏差，从而产生估计的标准偏差; （d）从输入视频序列和运动补偿视频序列之间的差估计比例因子; 和（e）使用先前从步骤（d）获得的比例因子重复步骤（a）至（d），以在步骤（a）中生成运动补偿视频序列，并使用先前从步骤（c）获得的估计标准偏差 ）以执行步骤（b）中的滤波，直到噪声电平的值接近输入视频序列的未知噪声，由此噪声电平然后由最终确定的比例因子和标准偏差来表征。

    Method and system for noise estimation from video sequence
    3.
    发明申请
    Method and system for noise estimation from video sequence 审中-公开
    视频序列噪声估计方法及系统

    公开(公告)号：US20050107982A1

    公开(公告)日：2005-05-19

    申请号：US10715276

    申请日：2003-11-17

    申请人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    发明人： Zhaohui Sun ,  Gabriel Fielding ,  Majid Rabbani

    IPC分类号： G06F15/00 ,  G06T5/00 ,  G06T5/40 ,  H04N5/21

    CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20216

    摘要： A method for determining the noise level, as characterized by the standard deviation, of an input video sequence corrupted by unknown noise comprises the steps of: (a) spatiotemporally filtering the input video sequence, thereby producing a filtered video sequence; (b) estimating a standard deviation from the difference between the input video sequence and the filtered video sequence, thereby producing an estimated standard deviation; and (c) iterating through steps (a) and (b) using the estimated standard deviation previously obtained from step (b) to perform the filtering in step (a) until the value of the noise level approaches the unknown noise, whereby the noise level is then characterized by a finally determined standard deviation.

    摘要翻译： 用于确定由未知噪声损坏的输入视频序列的标准偏差特征的噪声水平的方法包括以下步骤：（a）对输入视频序列进行时空滤波，从而产生滤波后的视频序列; （b）从输入视频序列和滤波视频序列之间的差估计标准偏差，从而产生估计的标准偏差; 和（c）使用先前从步骤（b）获得的估计标准偏差来迭代步骤（a）和（b），以在步骤（a）中执行滤波，直到噪声电平的值接近未知噪声，由此噪声 然后通过最终确定的标准偏差来表征水平。

    Image sequence stabilization method and camera having dual path image sequence stabilization
    5.
    发明申请
    Image sequence stabilization method and camera having dual path image sequence stabilization 有权
    具有双路径图像序列稳定的图像序列稳定化方法和相机

    公开(公告)号：US20060274156A1

    公开(公告)日：2006-12-07

    申请号：US11130690

    申请日：2005-05-17

    申请人： Majid Rabbani ,  Aaron Deever ,  Gabriel Fielding ,  Robert Gretzinger

    发明人： Majid Rabbani ,  Aaron Deever ,  Gabriel Fielding ,  Robert Gretzinger

    IPC分类号： H04N5/228

    CPC分类号： H04N5/23248 ,  H04N5/23254 ,  H04N5/23258 ,  H04N5/23261 ,  H04N5/23274 ,  H04N5/23293

    摘要： In an image sequence stabilization method and a camera, a sequence of input digital images are captured. The sequence of input digital images is replicated to provide a corresponding sequence of archival images and a corresponding sequence of display images. The archival image sequence is automatically stabilized to provide a stabilized archival image sequence. The display image sequence is automatically stabilized to provide a stabilized display image sequence. The stabilization methods used for the two sequences are different, although both can be digital.

    摘要翻译： 在图像序列稳定化方法和相机中，捕获输入数字图像的序列。 复制输入数字图像的序列以提供对应的档案图像序列和相应的显示图像序列。 归档图像序列自动稳定，以提供稳定的档案图像序列。 显示图像序列自动稳定以提供稳定的显示图像序列。 用于两个序列的稳定方法是不同的，尽管两者都可以是数字的。

    Detecting objects of interest in digital images
    6.
    发明申请
    Detecting objects of interest in digital images 审中-公开
    检测数字图像中感兴趣的对象

    公开(公告)号：US20070121094A1

    公开(公告)日：2007-05-31

    申请号：US11290016

    申请日：2005-11-30

    申请人： Andrew Gallagher ,  Nathan Cahill ,  Gabriel Fielding ,  Lawrence Ray

    发明人： Andrew Gallagher ,  Nathan Cahill ,  Gabriel Fielding ,  Lawrence Ray

    IPC分类号： G01C3/08 ,  G06K9/00

    CPC分类号： G06K9/00664 ,  G06K9/00201 ,  H04N13/128

    摘要： A method of detecting an object of interest having a known size in a digital image, includes providing a range information including two or more range values indicating the distance of objects in the scene from a known reference frame; detecting a candidate object of interest in the image; determining range values corresponding to the candidate object of interest and using these range values and the known size of the object of interest to classify the candidate object of interest.

    摘要翻译： 一种在数字图像中检测具有已知尺寸的感兴趣对象的方法包括：提供包括两个或更多个范围值的范围信息，该范围值指示场景中的对象距已知参考帧; 检测图像中的感兴趣的候选对象; 确定与所述候选对象相对应的范围值，并使用所述范围值和所述感兴趣对象的已知大小对所述候选对象进行分类。

    Electronic and film theatrical quality
    7.
    发明授权
    Electronic and film theatrical quality 有权
    电影和电影戏剧品质

    公开(公告)号：US06909491B2

    公开(公告)日：2005-06-21

    申请号：US10285921

    申请日：2002-11-01

    申请人： Roger A. Morton ,  Gabriel Fielding ,  Michelle A. Maurer ,  Christopher L. Dumont

    发明人： Roger A. Morton ,  Gabriel Fielding ,  Michelle A. Maurer ,  Christopher L. Dumont

    IPC分类号： G06T5/00 ,  H04N5/253 ,  G03B19/18 ,  G06T15/00

    CPC分类号： H04N5/253 ,  G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20182 ,  G06T2207/20192 ,  G06T2207/20204 ,  G06T2207/20216

    摘要： A method is described for processing motion picture scene data through a process in which the scene data is initially acquired from a film or an electronic camera and ultimately projected onto a screen, wherein image losses potentially occur during distribution and projection stages of the process. The method includes the steps of: (a) representing the scene data in a non-linear space; and (b) compensating for the image losses associated with the distribution and projection stages at a point in the process before they occur by converting the scene data into an intermediate space representing the space in which the losses occur and filtering the scene data in the intermediate space to compensate the scene data for the losses. Additional steps provide additional benefits, including the steps of: (a) digitally scaling the digital scene data anamorphically to provide an image that makes full use of the available film space on the film; (b) recording multiple intermediate prints from the digital scene data and performing a single printing step to make each release print from an intermediate print; and (c) using motion compensated frame averaging to digitally remove noise.

    摘要翻译： 描述了一种用于通过其中首先从胶片或电子照相机获取场景数据并且最终投影到屏幕上的过程来处理运动图像场景数据的方法，其中在处理的分布和投影阶段可能会出现图像损失。 该方法包括以下步骤：（a）在非线性空间中表示场景数据; 和（b）通过将场景数据转换成表示损失发生的空间的中间空间并且对中间物体中的场景数据进行滤波来补偿在它们发生之前在过程中的点处与分布和投影阶段相关联的图像损失 空间补偿场景数据的损失。 附加步骤提供额外的好处，包括以下步骤：（a）以变形方式数字缩放数字场景数据，以提供充分利用电影上可用胶卷空间的图像; （b）从数字场景数据记录多个中间印刷品，并执行单个印刷步骤，以从中间印刷品制作每个印张; 和（c）使用运动补偿帧平均来数字地去除噪声。

    System and method for extracting a watermark signal in a digital image sequence
    9.
    发明授权
    System and method for extracting a watermark signal in a digital image sequence 有权
    用于在数字图像序列中提取水印信号的系统和方法

    公开(公告)号：US07203335B2

    公开(公告)日：2007-04-10

    申请号：US09923583

    申请日：2001-08-07

    申请人： Gabriel Fielding ,  Paul W. Jones

    发明人： Gabriel Fielding ,  Paul W. Jones

    IPC分类号： G06K9/00

    CPC分类号： G06T1/0085 ,  G06T1/005 ,  G06T2201/0065 ,  G06T2201/0083

    摘要： A method for extracting a watermark signal contained in a watermarked digital image sequence having two or more frames, including the steps of estimating correspondences between one or more pairs of frames in the watermarked digital image sequence; computing a displaced frame difference for one or more frames in the watermarked digital image sequence using the correspondences; and extracting the watermark signal from one or more displaced frame differences.

    摘要翻译： 一种用于提取包含在具有两个或多个帧的水印数字图像序列中的水印信号的方法，包括以下步骤：估计加水印的数字图像序列中的一对或多对帧之间的对应关系; 使用所述对应度来计算所述水印数字图像序列中的一个或多个帧的位移帧差; 以及从一个或多个位移帧差提取水印信号。