公开(公告)号：EP2375374A3

公开(公告)日：2012-02-15

申请号：EP11005330.3

申请日：2008-03-25

申请人： Intel Corporation

发明人： Chiu, Yi-Jen

IPC分类号： G06T5/00 ,  H04N5/21 ,  H04N17/00

CPC分类号： H04N17/00 ,  G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20032 ,  H04N5/142 ,  H04N5/21

摘要： A method of filtering noise from a picture may include determining a set of pixel noise metrics for a set of selected pixels in the picture based solely on information from the set of selected pixels in the picture. The method may also designate as valid a subset of pixel noise metrics in the set of pixel noise metrics whose associated pixels are not located at an edge or are not located in a complicated area of the picture. A set of block noise metrics may be calculated from the valid subset of pixel noise metrics, and a global noise metric for the picture may be ascertained from the set of block noise metrics. The picture may be filtered using the global noise metric to generate a filtered picture.

摘要翻译： 一种对图像噪声进行滤波的方法可以包括基于图像中所选择的像素集合中的信息确定图像中所选像素集合的一组像素噪声度量。 该方法还可以将像素噪声度量的集合中的像素噪声度量的子集指定为有效像素噪声度量，其相关像素不位于边缘处或不位于图像的复杂区域中。 可以从像素噪声度量的有效子集计算一组块噪声度量，并且可以从块噪声度量的集合中确定图像的全局噪声度量。 可以使用全局噪声度量来过滤图像以生成滤波图像。

公开(公告)号：EP2390836A2

公开(公告)日：2011-11-30

申请号：EP11005954.0

申请日：2007-04-26

申请人： Nippon Telegraph And Telephone Corporation

发明人： Okamoto, Jun ,  Watanabe, Keishirou ,  Kurita, Takaaki

IPC分类号： G06T5/00 ,  G06T5/10 ,  G06T5/20 ,  H04N5/21 ,  H04N17/00

CPC分类号： G06T5/10 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20032 ,  H04N17/004

摘要： A singular point removing unit (12) removes a singular point as invisible high-frequency component noise from a degraded video signal and a reference video signal. A pixel value correcting unit (13) removes pixel-value bias added to the degraded video signal. The singular point removing unit (12) transforms the video signal into a spatial frequency, removes a high-frequency component, and restores the video signal by inverse transformation, or removes a singular point by using an averaging filter or a median filter. The pixel value correcting unit (13) obtains the correlation between the pixel values of the reference video signal and the corresponding pixel values of the degraded video signal, and corrects the pixel values of the reference video signal or the degraded video signal so as to match the pixel values of the degraded video signal with the pixel values of the reference video signal.

摘要翻译： 奇异点去除单元（12）从劣化的视频信号和参考视频信号中除去奇异点作为不可见的高频分量噪声。 像素值校正单元（13）去除添加到劣化视频信号的像素值偏移。 奇点去除单元（12）将视频信号变换为空间频率，去除高频分量，并通过逆变换恢复视频信号，或者通过使用平均滤波器或中值滤波器去除奇异点。 像素值校正单元（13）获得参考视频信号的像素值与劣化视频信号的相应像素值之间的相关性，并且校正参考视频信号或劣化视频信号的像素值以便匹配 具有参考视频信号的像素值的劣化视频信号的像素值。

公开(公告)号：EP2365696A2

公开(公告)日：2011-09-14

申请号：EP11153675.1

申请日：2011-02-08

申请人： Samsung Electronics Co., Ltd.

发明人： Park, Min-Kyu ,  Song, Han-Sae ,  Park, Hee-Chan ,  Yoon, Young-Kwon ,  Lee, Yong-Gu

IPC分类号： H04N9/04

CPC分类号： H04N9/045 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10024 ,  G06T2207/20032 ,  H04N9/646

摘要： A device and method for reducing color noise of an image by using a distance weight depending on a distance from a central pixel for each pixel of an image and an edge weight depending on the difference in luminance and chrominance with the central pixel is provided, which can effectively reduce the color noise of the image by using the correlation between the luminance and the chrominance and edge characteristics.

摘要翻译： 提供一种用于通过使用依赖于与图像的每个像素的中心像素的距离的距离权重和根据与中心像素的亮度和色度的差异的边缘权重来减少图像的颜色噪声的装置和方法，其中 可以通过使用亮度和色度和边缘特性之间的相关性来有效地降低图像的颜色噪声。

公开(公告)号：EP2323372A1

公开(公告)日：2011-05-18

申请号：EP11001230.9

申请日：2003-05-27

申请人： Microsoft Corporation

发明人： Soupliotis, Andreas ,  Anandan, Padmanabhan

IPC分类号： H04N5/14

CPC分类号： H04N5/23264 ,  G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/20032 ,  G06T2207/20182 ,  G06T2207/20201 ,  H04N5/145 ,  H04N5/21 ,  H04N5/23248 ,  H04N5/23254 ,  H04N5/262 ,  H04N7/012

摘要： The present invention includes an automatic video enhancement system and method for automatically enhancing video. The automated video enhancement method uses frame-to-frame motion estimation as the basis of the video enhancement. Motion estimation includes the computation of global motion (such as camera motion) and the computation of local motion (such as pixel motion). The automated video enhancement method includes generating global alignment transforms, generating optic flow vectors, and using these global alignment transforms and optic flow vectors to enhance the video. The invention also includes video processing and enhancement techniques that use the frame-to-frame motion estimation. These techniques include a deinterlace process, a denoise process, and a warp stabilization process that performs both damped and locked stabilization.

摘要翻译： 本发明包括一种用于自动增强视频的自动视频增强系统和方法。 自动视频增强方法使用帧到帧运动估计作为视频增强的基础。 运动估计包括全局运动（如摄像机运动）的计算和局部运动的计算（如像素运动）。 自动化视频增强方法包括产生全局对准变换，产生光流矢量，以及使用这些全局对准变换和光流向量来增强视频。 本发明还包括使用帧到帧运动估计的视频处理和增强技术。 这些技术包括去隔行处理，去噪处理以及执行阻尼和锁定稳定的翘曲稳定处理。

公开(公告)号：EP2230640A1

公开(公告)日：2010-09-22

申请号：EP10002458.7

申请日：2010-03-09

申请人： Mitsubishi Electric Corporation

发明人： Yea, Sehoon ,  Oh, Kwan-Jung ,  Vetro, Anthony

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T2207/10028 ,  G06T2207/20012 ,  G06T2207/20028 ,  G06T2207/20032

摘要： A method filters a depth image, wherein each depth image includes an array of pixels at locations ( x, y ), and wherein each pixel has a depth. A moving window is applied to the pixels in the depth image, wherein a size of the window covers a set of pixels centered at each pixel. A single representative depth from the set of pixel in the window is assigned to the pixel to produce a processed depth image. Then, each pixel in the processed depth image is filtered to correct outlier depths without blurring depth discontinuities to produce a filtered depth image.

摘要翻译： 一种方法过滤深度图像，其中每个深度图像包括位置（x，y）处的像素阵列，并且其中每个像素具有深度。 移动窗口被应用于深度图像中的像素，其中窗口的大小覆盖以每个像素为中心的一组像素。 来自窗口中的该组像素的单个代表性深度被分配给像素以产生经处理的深度图像。 然后，对经处理的深度图像中的每个像素进行滤波以校正离群值深度，而不模糊深度不连续性以产生经过滤的深度图像。

公开(公告)号：EP2220517A1

公开(公告)日：2010-08-25

申请号：EP08849599.9

申请日：2008-11-14

申请人： Terraspark Geosciences, L.P.

发明人： HAMMON, William, Stanley

IPC分类号： G01V1/00

CPC分类号： G01V1/302 ,  G01V1/345 ,  G01V2210/641 ,  G01V2210/644 ,  G01V2210/74 ,  G06T5/002 ,  G06T5/008 ,  G06T5/20 ,  G06T2207/20012 ,  G06T2207/20032 ,  G06T2207/20192

摘要： A suite of processes and tools for preprocessing data prior to seismic interpretation including: voxel connectivity mapping, seismic response reduction, voxel suppression and voxel density. Voxel connectivity is used to assist with removing insignificant data. Seismic response reduction is used to reduce the seismic response of a given reflector to a lobe, such as a main lobe. Voxel suppression assists with highlighting and enhancing lithologic boundaries to aid in human and computer-aided interpretation. Voxel density scores the local significance of data trends within a volume, such as a 3-D seismic volume, to assist with the enhancement of these trends.

公开(公告)号：EP2071512A1

公开(公告)日：2009-06-17

申请号：EP08171034.5

申请日：2008-12-09

申请人： THOMSON LICENSING

发明人： Kervec, Jonathan ,  Bourdon, Pascal ,  Menard, Nicolas

IPC分类号： G06T3/40 ,  H04N7/01

CPC分类号： H04N5/142 ,  G06T5/20 ,  G06T2207/20032 ,  G06T2207/20192 ,  H04N7/0135 ,  H04N7/0142

摘要： The present invention relates to a method and device for the generation of a distance representative of the edge orientation at a current point of a video picture. The distances generated are particularly used for the deinterlacing or format conversion of video pictures. It can be implemented in a video coder or decoder. According to the invention, the distances representative of the edge orientation calculated are filtered with a conditional median filter applied to a window of p by q distances. This filter only takes into account the distances of points for which the local gradient module of the video components is greater than a threshold.

公开(公告)号：EP1952344A4

公开(公告)日：2009-04-29

申请号：EP06790859

申请日：2006-10-19

申请人： CEDARA SOFTWARE CORP

发明人： GEIGER PAUL ,  ACCOMAZZI VITTORIO

IPC分类号： G06T5/00 ,  G06T5/20

CPC分类号： G06T5/20 ,  G06T5/004 ,  G06T5/007 ,  G06T2207/20016 ,  G06T2207/20032 ,  G06T2207/20048 ,  G06T2207/30004

摘要： A system and method for enhancing digital images is described. A digital image is transformed into a series of decomposed images in frequency bands, or different resolution grids A decomposed image is noise suppressed and contrast enhanced Representative value of signal at each pixel is computed based on contributions to signals from pixels in a neighborhood of the pixel. Lookup tables are applied to pixel values to selectively enhance signal in a predetermined range of signal strength. Another set of lookup tables are applied to pixel values to suppress noise components contained therein Optionally, operations are applied to decomposed images to suppress quantum noise, enhance object edges or enhance global contrast, among others These decomposed images, after signal enhancement and noise suppression, are then recombined to result in an enhanced image

公开(公告)号：EP1924082A3

公开(公告)日：2009-03-04

申请号：EP07120477.0

申请日：2007-11-12

申请人： Fujitsu Microelectronics Limited

发明人： Watarai, Yuji

IPC分类号： H04N5/217

CPC分类号： H04N5/357 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20032 ,  H04N5/21

摘要： There is provided an image processing apparatus and an image processing method capable of exerting a noise reduction effect corresponding to a pixel value of a target pixel. An image processing apparatus that reduces a noise included in a target pixel while reflecting a surrounding pixel located on a surrounding of the target pixel, comprises a selecting section that selects a pixel width tolerable with reference to a true value of the target pixel as a pixel value of the target pixel and correcting section that extracts either one or both pixel values, namely, a pixel value of the surrounding pixel and the pixel value of the target pixel, as a correction value for correcting the pixel value of the target pixel depending on the pixel width selected by the selecting portion.

摘要翻译： 提供了能够发挥与目标像素的像素值对应的降噪效果的图像处理装置和图像处理方法。 一种图像处理设备，其在反映位于目标像素周围的周围像素的同时降低包括在目标像素中的噪声的图像处理设备包括选择部分，该参考目标像素的真实值可容忍的像素宽度作为像素 目标像素的值以及提取周围像素的像素值和目标像素的像素值中的任一个或两个像素值的校正部分作为用于根据对象像素的像素值进行校正的校正值 由选择部分选择的像素宽度。

公开(公告)号：EP1296516A2

公开(公告)日：2003-03-26

申请号：EP02020794.0

申请日：2002-09-17

申请人： Micronas GmbH

发明人： Jostschulte, Klaus

IPC分类号： H04N5/21 ,  H04N5/14

CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/10 ,  G06T5/20 ,  G06T2207/20032 ,  G06T2207/20056 ,  H04N5/142

摘要： Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zur Teilbandzerlegung eines Bildsignals (S), wobei die Vorrichtung folgende Merkmale aufweist:

eine Kaskade mit n aufeinanderfolgenden Medianfiltern (M1, M2, M3, M4), wobei n ≥ 2 ist, die jeweils einen Eingang und einen Ausgang aufweisen, wobei dem Eingang eines ersten Medianfilters (M1) das Bildsignal (S) zugeführt ist und wobei der Eingang jedes dem ersten Medianfilter (M1) nachfolgenden Medianfilters (M2, M3, M4) an den Ausgang des jeweils vorherigen Medianfilters (M1, M2, M3) der Kaskade angeschlossen ist,
wenigstens ein Verknüpfungselement (SUB1, SUB2, SUB3, SUB4), das wenigstens zwei Eingänge und einen Ausgang aufweisen, wobei jedem der Eingänge ein Ausgangssignal eines der Medianfilter (M1, M2, M3, M4) oder das Bildsignal (S) zugeführt ist und wobei an dem Ausgang ein Teilbandsignal (S1, S2, S3, S4) zur Verfügung steht.

摘要翻译： 该装置具有级联的连续中值滤波器（M1-M3），图像信号（S）馈送到第一滤波器的输入端，并且每个后续滤波器的输入端连接到前一个滤波器的输出端和至少一个组合元件 具有至少两个输入和一个输出，由此每个输入接收滤波器的输出或图像信号，并且子带信号在输出端可用。 AN独立权利要求还包括以下内容：图像信号的子带划分方法。