公开(公告)号：US08155459B2

公开(公告)日：2012-04-10

申请号：US10556616

申请日：2004-05-06

申请人： Stéphane Mutz ,  Hugues De Perthuis ,  Eric Desmicht

发明人： Stéphane Mutz ,  Hugues De Perthuis ,  Eric Desmicht

IPC分类号： G06K9/36 ,  H04N7/12

CPC分类号： H04N19/433 ,  H04N19/44 ,  H04N19/51 ,  H04N19/61

摘要： The present invention relates to a video processing device for processing data corresponding to a sequence of pictures according to a predictive block-based encoding technique. Said device comprises a processing unit (20) including a reconstruction circuit (16) for reconstructing pictures from decoded data and an external memory (1) for storing reference pictures delivered by the reconstruction circuit. The processing unit further comprises a memory controller (11) for controlling data exchange between the processing unit and the external memory, a cache memory (17) for temporarily storing data corresponding to a prediction area, said data being read out from the external memory via the memory controller, and a motion compensation circuit (14) for delivering motion compensated data to the reconstruction circuit on the basis of the prediction area read out from the cache memory.

摘要翻译： 本发明涉及一种视频处理装置，用于根据预测的基于块的编码技术处理对应于图像序列的数据。 所述装置包括处理单元（20），该处理单元（20）包括用于从解码数据重建图像的重构电路（16）和用于存储由重建电路传送的参考图像的外部存储器（1）。 处理单元还包括用于控制处理单元和外部存储器之间的数据交换的存储器控​​制器（11），用于临时存储对应于预测区域的数据的高速缓冲存储器（17），所述数据从外部存储器经由 存储器控制器和用于基于从高速缓冲存储器读出的预测区域将运动补偿数据传送到重建电路的运动补偿电路（14）。

公开(公告)号：US08135073B2

公开(公告)日：2012-03-13

申请号：US10537889

申请日：2003-12-12

申请人： Richard Chi-Te Shen

发明人： Richard Chi-Te Shen

IPC分类号： H04N7/18

CPC分类号： G06T5/008 ,  G06T2207/10016 ,  H04N19/117 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/61

摘要： A video stream containing encoded frame-based video information includes a first frame and a second frame. The encoding of the second frame depends on the encoding of the first frame. The encoding includes motion vectors indicating differences in positions between regions of the second frame and corresponding regions of the first frame, the motion vectors defining the correspondence between regions of the second frame and regions of the first frame. The first frame is decoded and a re-mapping strategy for video enhancement of the decoded first frame is determined using a region-based analysis. Regions of the decoded first frame are re-mapped according to the determined video enhancement re-mapping strategy for the first frame so as to enhance the first frame. The motion vectors for the second frame are recovered from the video stream and the second frame is decoded.

摘要翻译： 包含经编码的基于帧的视频信息的视频流包括第一帧和第二帧。 第二帧的编码取决于第一帧的编码。 编码包括指示第二帧的区域与第一帧的对应区域之间的位置差异的运动矢量，运动矢量定义第二帧的区域和第一帧的区域之间的对应关系。 第一帧被解码，并且使用基于区域的分析确定用于解码的第一帧的视频增强的重新映射策略。 根据确定的第一帧的视频增强重映射策略重新映射解码的第一帧的区域，以便增强第一帧。 从视频流恢复第二帧的运动矢量，并且解码第二帧。

公开(公告)号：US20110222780A1

公开(公告)日：2011-09-15

申请号：US13120120

申请日：2009-09-21

申请人： Ulrich Niedermeier

发明人： Ulrich Niedermeier

IPC分类号： G06K9/48

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/119 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/80

摘要： The present invention describes a method for the detection of a block raster in an image that has a plurality of pixels, to each of which at least one pixel value is assigned and which are situated one next to another along horizontal and vertical pixel boundaries (x0, x0+1), the method including: a) defining a raster having raster boundaries (xj+dxj), which run either parallel to the vertical pixel boundaries or parallel to the horizontal pixel boundaries, and the position of which is specified by an offset (OF) and a spacing (SP) between them; b) ascertaining a raster dimension of the raster which is a function of the edge dimensions; of at least some of the raster boundaries (xj+dxj) of the raster. c) repeating the method steps a) and b) at least once for an additional raster; d) selecting one of the rasters taking into account the raster dimensions ascertained for the individual rasters.

摘要翻译： 本发明描述了一种用于检测具有多个像素的图像中的块光栅的方法，其中至少一个像素值被分配并且沿水平和垂直像素边界（x0 ，x0 + 1），所述方法包括：a）定义具有平行于垂直像素边界或平行于水平像素边界的光栅边界（xj + dxj）的光栅，并且其位置由 偏移（OF）和间距（SP）; b）确定作为边缘尺寸的函数的光栅的光栅尺寸; 的栅格边界（xj + dxj）中的至少一些。 c）对另外的光栅重复方法步骤a）和b）至少一次; d）选择其中一个光栅，同时考虑到为各个光栅确定的光栅尺寸。

公开(公告)号：US20110205438A1

公开(公告)日：2011-08-25

申请号：US12677523

申请日：2008-08-05

申请人： Voker Blume

发明人： Voker Blume

IPC分类号： H04N5/00

CPC分类号： H04N7/0132 ,  G06T7/246 ,  G06T2207/10016 ,  H04N7/014

摘要： The present invention is related to a method and an apparatus for motion estimation and motion compensation in video image data and especially for line based field rate up-conversion motion estimation and motion compensation of video image data.

摘要翻译： 本发明涉及视频图像数据中运动估计和运动补偿的方法和装置，尤其涉及视频图像数据的基于行的场速上变换运动估计和运动补偿。

公开(公告)号：US07930174B2

公开(公告)日：2011-04-19

申请号：US11133146

申请日：2005-05-19

申请人： Chiron Van der Burgt ,  Hans Fiesel

发明人： Chiron Van der Burgt ,  Hans Fiesel

IPC分类号： G10L21/02

CPC分类号： H04B1/1036

摘要： An analog signal is sampled to provide a digitized signal and the resultant digitized signal is output to a delay element, which provides a delayed digital signal. The analog signal is also input to an analog noise detector, which provides a noise detector output signal to a digital logic unit. The digital logic unit processes the noise detector output signal to determine if noise is present in the analog signal, and provides a control signal. An amplifier receives the delayed digital signal and reduces a gain applied to the delayed digital signal in response to the control signal, and provides an amplifier output signal.

摘要翻译： 模拟信号被采样以提供数字化信号，并且所得到的数字化信号被输出到延迟元件，延迟元件提供延迟的数字信号。 模拟信号也被输入到模拟噪声检测器，该噪声检测器向数字逻辑单元提供噪声检测器输出信号。 数字逻辑单元处理噪声检测器输出信号以确定模拟信号中是否存在噪声，并提供控制信号。 放大器响应于控制信号接收延迟的数字信号并减小施加到延迟数字信号的增益，并提供放大器输出信号。

公开(公告)号：US07929609B2

公开(公告)日：2011-04-19

申请号：US10237814

申请日：2002-09-09

申请人： Abraham Karel Riemens ,  Robert Jan Schutten ,  Jeroen Maria Kettenis ,  Olukayode Anthony Ojo ,  Kornelis Antonius Vissers

发明人： Abraham Karel Riemens ,  Robert Jan Schutten ,  Jeroen Maria Kettenis ,  Olukayode Anthony Ojo ,  Kornelis Antonius Vissers

IPC分类号： H04N7/12 ,  H04N7/32

CPC分类号： H04N5/145 ,  H04N19/527 ,  H04N19/56

摘要： Estimating and/or compensating motion in a video image is provided wherein an image segment of the video image is selected, a search area is defined around the image segment, the defining being based on a range of possible motion vectors for the image segment, and image data related to said search area is retrieved. The search area is defined to have its center offset from a center of the image segment. The offset may be determined by a global motion parameter.

摘要翻译： 提供了一种视频图像中的估计和/或补偿运动，其中选择视频图像的图像片段，搜索区域围绕图像片段定义，所述定义基于图像片段的可能运动矢量的范围，以及 检索与所述搜索区域相关的图像数据。 搜索区域被定义为其中心偏离图像段的中心。 偏移可以由全局运动参数确定。

公开(公告)号：US07924289B2

公开(公告)日：2011-04-12

申请号：US11690071

申请日：2007-03-22

申请人： Thomas Haaker ,  Roland Richter

发明人： Thomas Haaker ,  Roland Richter

IPC分类号： G09G5/00

CPC分类号： G06T15/04

摘要： In a method for determining weighting factors for the color calculation of a color value of texels for a footprint covering a plurality of texels in a texel grid, in a graphic system, form information of the footprint is determined at first. Afterwards, the edges of the footprint are determined and the edges determined in this way are approximated by a staircase function. The texels of the texel grid contacted by the staircase function are determined and a weighting factor is determined for each texel containing a portion of the staircase function, depending on the subarea of the respective texel covered by the footprint.

摘要翻译： 在图形系统中，在图形系统中，确定覆盖纹理纹格网格中的多个纹迹的覆盖层的纹理的颜色值的颜色计算的加权因子的方法中，首先确定印迹的形式信息。 之后，确定了足迹的边缘，以这种方式确定的边缘由阶梯函数近似。 确定由楼梯功能接触的纹理格子的纹理，并且根据由覆盖区域覆盖的相应纹理细分区域的子区域，确定包含阶梯函数的一部分的每个纹理像素的加权因子。

公开(公告)号：US07843509B2

公开(公告)日：2010-11-30

申请号：US11540484

申请日：2006-09-28

申请人： Marko Hahn ,  Markus Schu

发明人： Marko Hahn ,  Markus Schu

IPC分类号： H04N7/01 ,  H04N11/20

CPC分类号： G06T3/4007 ,  H04N7/012 ,  H04N7/014

摘要： The invention relates to an iterative method for determining an interpolated image information value in an image that comprises a number of image regions arranged in a matrix-like fashion having original image regions to which one image information value has been assigned, and having at least one image region to be interpolated. In order to determine an interpolated image information value, the method specifies a starting interpolation direction and determines a quality measure for the starting interpolation direction. At least one image direction is selected different from the starting interpolation direction and determining a quality measure for this at least one image direction. The quality measures for the starting interpolation direction are compared and the at least one image direction different from the starting interpolation direction, selecting as the interpolation direction the starting interpolation direction or the at least one image direction, and determining the interpolated image information value using image regions that are located in the interpolation direction adjacent to the to-be-interpolated first image region. The steps of selecting and comparing are repeated at least once.

摘要翻译： 本发明涉及一种用于确定图像中的内插图像信息值的迭代方法，该图像包括以矩阵状排列的具有原始图像区域的多个图像区域，其中已经分配了一个图像信息值，并具有至少一个 要插值的图像区域。 为了确定内插图像信息值，该方法指定起始插入方向，并确定起始插入方向的质量度量。 选择与起始插入方向不同的至少一个图像方向，并且确定该至少一个图像方向的质量测量。 比较起始插补方向的质量度量和与起始插入方向不同的至少一个图像方向，选择作为插入方向的起始插入方向或至少一个图像方向，并且使用图像确定内插图像信息值 位于与被插值的第一图像区域相邻的插值方向的区域。 选择和比较的步骤至少重复一次。

公开(公告)号：US07770090B1

公开(公告)日：2010-08-03

申请号：US11303449

申请日：2005-12-16

申请人： Shachar Kons ,  Yoav GoldenBerg ,  Gadi Kalit ,  Eran Arad ,  Shimon Gur ,  Ronen Hershkovitz

发明人： Shachar Kons ,  Yoav GoldenBerg ,  Gadi Kalit ,  Eran Arad ,  Shimon Gur ,  Ronen Hershkovitz

IPC分类号： H03M13/45

CPC分类号： H03M13/1137 ,  H03M13/114 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/2906 ,  H03M13/6325

摘要： An LDPC decoder, applicable to LDPC codes including codes where check nodes within the same group are connected to a common bit node, successively processes groups of check nodes in a particular iteration, including updating bit nodes in that same iteration responsive to messages generated in response to processing a group of check nodes. Within an iteration, the LDPC decoder may also track the number of unresolved parity check equations, and cease iterating or output to an outer block decoder if that number reaches a local minima or standard minimum, falls below a predetermined threshold, or its rate of change falls below a predetermined threshold, indicating a lack of convergence or false convergence condition. The LDPC decoder may also provide a feedback assist to a demodulator. Also, a novel memory configuration may store messages generated by the decoder in the course of check node processing. The decoder may also employ a novel method for generating check node to bit node messages through a prescribed series of pair-wise computations.

摘要翻译： 一种LDPC解码器，适用于包括同一组内的校验节点连接到公共位节点的代码的LDPC码，在特定迭代中连续地处理校验节点组，包括响应于在响应中产生的消息在相同迭代中更新位节点 来处理一组校验节点。 在迭代中，LDPC解码器还可以跟踪未解决的奇偶校验方程的数量，并且如果该数量达到局部最小值或标准最小值，低于预定阈值或其变化率，则停止迭代或输出到外部块解码器 低于预定阈值，表示缺乏收敛或错误收敛条件。 LDPC解码器还可以向解调器提供反馈辅助。 此外，新颖的存储器配置可以在校验节点处理的过程中存储由解码器产生的消息。 解码器还可以采用一种新颖的方法，用于通过规定的一系列成对计算产生校验节点到位节点消息。

公开(公告)号：US07734089B2

公开(公告)日：2010-06-08

申请号：US11210296

申请日：2005-08-23

申请人： Jun Zhang ,  Chun-Wei Chen ,  Jiande Jiang ,  Zheng Liu

发明人： Jun Zhang ,  Chun-Wei Chen ,  Jiande Jiang ,  Zheng Liu

IPC分类号： G06K9/00

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T7/194

摘要： A method of reducing mosquito noise in a digital image. As mosquito noise is often most plainly visible in the “background” of an image (e.g., the sky or some other backdrop to objects within an image), the luminance value of the background of the image is first determined. Then, the luminances of the pixels of the image are compared against this “background luminance” to determine which should be considered as part of this background. The luminances of these background pixels are then averaged so as to smooth out the representation of the background, and reduce mosquito noise.

摘要翻译： 减少数字图像中蚊子噪音的方法。 由于蚊子噪音通常在图像的“背景”（例如，天空或图像内的对象的某些其他背景）中最明显可见，所以首先确定图像的背景的亮度值。 然后，将图像的像素的亮度与该“背景亮度”进行比较，以确定应将其视为该背景的一部分。 然后对这些背景像素的亮度进行平均，以平滑背景的表示，并减少蚊子的噪音。