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1. 发明申请

US20090147851A1 MOTION VECTOR FIELD PROJECTION DEALING WITH COVERING AND UNCOVERING 审中-公开
标题翻译：运动矢量场投影处理与覆盖和去除
公开(公告)号：US20090147851A1
公开(公告)日：2009-06-11
申请号：US11719782
申请日：2005-11-17
申请人： Reinier Bernardus Maria Klein Gunnewiek , Rimmert Wittebrood , Ralph Braspenning
发明人： Reinier Bernardus Maria Klein Gunnewiek , Rimmert Wittebrood , Ralph Braspenning
IPC分类号： H04N7/26
CPC分类号： H04N19/521 , H04N19/513 , H04N19/553 , H04N19/573
摘要： The method for high efficiency video signal compression comprises: a) calculating a first motion vector field (MvI) at a temporal location (t3) of a third video picture (125) by using pixel data of a second video picture (123) and the third video picture; b) calculating a second motion vector field (Mv2) at a temporal location (t2) of the second video picture (123), in which second motion vector field (Mv2) a foreground motion region (rFG2) composed of positions of foreground motion vectors, having a magnitude substantially equal to the motion of a foreground object (101), substantially collocates spatially with positions of pixels of the foreground object (101) and not with pixels of a background object (103, 103′); c) correcting erroneous foreground motion vectors (rERR) in an uncovering region of the first motion vector field (MvI) on the basis of the second motion vector field (Mv2); d) determining in a region (COV) of the first motion vector field corresponding to covering of background object pixels by the foreground object which of two vectors, projecting to a same spatial position in a future picture, is a foreground motion vector (vFG) and which is a background motion vector (vBG); e) projecting motion vectors of the first motion vector field to a temporal location (t4) of a fourth video picture (127) to be predicted, obtaining a third motion vector field (Mv3), comprising allocating a foreground motion vector (vFG) in the case of two vectors projecting to the same spatial position in the third motion vector field (Mv3); and f) predicting the fourth video picture (127) by using the third motion vector field (Mv3) for determining positions of pixels to be fetched from at least one previous image (125).
摘要翻译：用于高效率视频信号压缩的方法包括：a）通过使用第二视频图像（123）的像素数据在第三视频图像（125）的时间位置（t3）处计算第一运动矢量场（Mv1），并且第三视频图片; b）在第二视频图像（123）的时间位置（t2）处计算第二运动矢量场（Mv2），其中第二运动矢量场（Mv2）由前景运动矢量的位置组成的前景运动区域（rFG2）具有基本上等于前景物体（101）的运动的大小的幅度，基本上与空间上与前景物体（101）的像素的位置并置，而不与背景物体（103,103'）的像素并置; c）基于第二运动矢量场（Mv2）在第一运动矢量场（Mv1）的露出区域中校正错误的前景运动矢量（rERR）; d）通过前景对象来确定与背景物体像素的覆盖相对应的第一运动矢量场的区域（COV），在向后图像中投射到相同空间位置的两个向量中的哪一个是前景运动矢量（vFG）并且其是背景运动矢量（vBG）; e）将第一运动矢量场的运动矢量投影到要预测的第四视频图像（127）的时间位置（t4），获得第三运动矢量场（Mv3），包括将前景运动矢量（vFG）在第三运动矢量场（Mv3）中投射到相同空间位置的两个矢量的情况; 以及f）通过使用用于确定要从至少一个先前图像（125）获取的像素的位置的第三运动矢量场（Mv3）来预测第四视频图像（127）。

2. 发明申请

US20050180506A1 Unit for and method of estimating a current motion vector 审中-公开
标题翻译：用于估计当前运动矢量的单位和方法
公开(公告)号：US20050180506A1
公开(公告)日：2005-08-18
申请号：US10515736
申请日：2003-05-19
申请人： Rimmert Wittebrood , Gerard De Haan
发明人： Rimmert Wittebrood , Gerard De Haan
IPC分类号： G06T7/20 , H04N7/26 , H04N7/12
CPC分类号： H04N19/543 , G06T7/238 , G06T2207/10016
摘要： The motion estimation unit (100) being arranged to estimate a current motion vector for a first group (212) of pixels, comprises: a generating unit (106) for generating a set of candidate motion vectors for the first group (212) of pixels, with the candidate motion vectors being extracted from a set of previously estimated motion vectors; a match error unit (102) for calculating match errors of respective candidate motion vectors; and a selection unit (104) for selecting the current motion vector from the candidate motion vectors. The motion estimation unit (100) is arranged to modulate a predetermined match error threshold on basis of a result of segmentation for the first image. If the match error of a first one of the candidate motion vectors is below the current predetermined match error threshold then the first one of the candidate motion vectors is selected and evaluation of further candidate motion vectors for the first group of pixels is skipped.
摘要翻译：运动估计单元（100）被布置为估计第一组（212）像素的当前运动矢量，包括：生成单元（106），用于生成第一组像素（212）的候选运动矢量集合，其中从一组先前估计的运动矢量中提取候选运动矢量; 用于计算各个候选运动矢量的匹配误差的匹配误差单元（102）; 以及用于从候选运动矢量中选择当前运动矢量的选择单元（104）。运动估计单元（100）被布置成基于第一图像的分割结果来调制预定匹配误差阈值。如果候选运动矢量中的第一个运动矢量的匹配误差低于当前预定匹配误差阈值，则选择候选运动矢量中的第一运动矢量，并跳过针对第一组像素的其它候选运动矢量的评估。

3. 发明申请

US20060045365A1 Image processing unit with fall-back 有权
标题翻译：具有后退功能的图像处理单元
公开(公告)号：US20060045365A1
公开(公告)日：2006-03-02
申请号：US10531931
申请日：2003-10-01
申请人： Gerard De Haan , Paul Wilhelm Biezen , Rimmert Wittebrood
发明人： Gerard De Haan , Paul Wilhelm Biezen , Rimmert Wittebrood
IPC分类号： G06K9/36
CPC分类号： H04N19/105 , G06T7/238 , G06T2207/10016 , H04N7/014 , H04N19/132 , H04N19/154 , H04N19/172 , H04N19/176 , H04N19/521 , H04N19/587
摘要： An image processing unit (100,200,300) for computing a sequence of output images on basis of a sequence of input images, comprises: a motion estimation unit (102) for computing a motion vector field on basis of the input images; a quality measurement unit (104) for computing a value of a quality measure for the motion vector field; an interpolation unit (106) for computing the output images by means of interpolation of pixel values of the input images, on basis of the motion vector field; and control means (108) to control the interpolation unit (106) on basis of the quality measure. The quality measurement unit (104) is arranged to compute the value of the quality measure on basis of a maximum difference between neighboring motion vectors. If the value of the quality measure is lower than a predetermined threshold, then a motion compensated interpolation is performed, else a non-motion compensated interpolation is performed.
摘要翻译：一种用于基于输入图像序列计算输出图像序列的图像处理单元（100,200,300），包括：运动估计单元（102），用于基于所述输入图像计算运动矢量场; 质量测量单元（104），用于计算运动矢量场的质量测量值; 内插单元，用于根据运动矢量场通过输入图像的像素值的内插来计算输出图像; 以及基于质量测量来控制插值单元（106）的控制装置（108）。质量测量单元（104）被布置为基于相邻运动矢量之间的最大差来计算质量度量的值。如果质量测量值低于预定阈值，则执行运动补偿内插，否则执行非运动补偿内插。

4. 发明申请

US20070092111A1 Motion vector field re-timing 审中-公开
标题翻译：运动矢量场重新定时
公开(公告)号：US20070092111A1
公开(公告)日：2007-04-26
申请号：US10571808
申请日：2004-08-31
申请人： Rimmert Wittebrood , Gerard De Haan
发明人： Rimmert Wittebrood , Gerard De Haan
IPC分类号： G06K9/00 , H04N5/14
CPC分类号： H04N5/145 , H04N19/537 , H04N19/553 , H04N19/577 , H04N19/587 , H04N19/59
摘要： A method of estimating a particular motion vector (DR(x, n+α)) for a particular pixel, having a particular spatial position and being located at a temporal position (n+α) intermediate a first image and a second image of a sequence of video images, on basis of a first motion vector field (D3(x, n−1)) being estimated for the first image and on basis of a second motion vector field (D3(x, n)) being estimated for the second image is disclosed. The method comprises: creating a set of motion vectors (Dp, Dn, Dc) by selecting a number of motion vectors from the first motion vector field (D3(x, n−1)) and second motion vector field (D3(x, n)), on basis of the particular spatial position of the particular pixel; and establishing the particular motion vector (DR(x,n+α)) by performing an order statistical operation on the set of motion vectors (Dp, Dn, Dc).
摘要翻译：一种用于具有特定空间位置并且位于时间位置（n +α）的特定像素的特定运动矢量（D，R，（x，n +α））的方法，基于为第一图像估计的第一运动矢量场（D 3 N（x，n-1））和基于第一图像的第一图像和第二图像的视频图像序列的第二图像公开了针对第二图像估计的第二运动矢量场（D 3 3（x，n））。该方法包括：通过选择来自所述运动矢量的运动矢量的数量来创建一组运动矢量（D，P，D，N，D，C）第一运动矢量场（D 3，（x，n-1））和第二运动矢量场（D 3（x，n）），特定像素的位置; 以及通过对所述运动矢量集合（D SUB，D n ，D ）。

5. 发明申请

US20060072790A1 Background motion vector detection 有权
标题翻译：背景运动矢量检测
公开(公告)号：US20060072790A1
公开(公告)日：2006-04-06
申请号：US10542893
申请日：2003-12-16
申请人： Rimmert Wittebrood , Gerard De Haan , Rogier Lodder
发明人： Rimmert Wittebrood , Gerard De Haan , Rogier Lodder
IPC分类号： G06K9/00
CPC分类号： H04N5/145 , H04N7/014
摘要： A selector (502) for selecting a background motion vector for a pixel in an occlusion region of an image, from a set of motion vectors being computed for the image, comprises: computing means (510) for computing a model-based motion vector for the pixel on basis of a motion model being determined on basis of a part of (402-436) a motion vector field (400) of the image; comparing means (511) for comparing the model-based motion vector with each of the motion vectors of the set of motion vectors; and selecting means (512) for selecting a particular motion vector of the set of motion vectors on basis of the comparing and for assigning the particular motion vector as the background motion vector.
摘要翻译：一种用于从针对图像计算的一组运动矢量中选择用于图像的遮挡区域中的像素的背景运动矢量的选择器（502），包括：计算装置（510），用于计算基于模型的运动矢量，基于图像的运动矢量场（400）的一部分（402-436）确定基于运动模型的像素; 比较装置（511），用于将基于模型的运动矢量与该组运动矢量的每个运动矢量进行比较; 以及用于基于所述比较选择所述一组运动矢量的特定运动矢量并且用于将所述特定运动矢量分配为所述背景运动矢量的选择装置（512）。

6. 发明申请

US20070002058A1 Temporal interpolation of a pixel on basis of occlusion detection 有权
标题翻译：基于遮挡检测的像素的时间插值
公开(公告)号：US20070002058A1
公开(公告)日：2007-01-04
申请号：US10569681
申请日：2004-08-23
申请人： Rimmert Wittebrood
发明人： Rimmert Wittebrood
IPC分类号： G06T15/70
CPC分类号： H04N19/587 , H04N19/132 , H04N19/51 , H04N19/553
摘要： A method of determining a value for a particular pixel of a particular image being temporarily located intermediate a first image and a second image is disclosed. The method comprises: computing a first motion vector difference on basis of a first (Dp) and second (Dpp) motion vector of a first motion vector field (D3(x, n−1)) corresponding to the first image; computing a second motion vector difference on basis of a third (Dn) and fourth (Dnn) motion vector of a second motion vector field (D3(x, n)) corresponding to the second image; and establishing the value of the particular pixel on basis of a first value of a first pixel of the first image if the first motion vector difference is smaller than the second motion vector difference and establishing the value of the particular pixel on basis of a second value of a second pixel of the second image if the second motion vector difference is smaller than the first motion vector difference.
摘要翻译：公开了一种确定暂时位于第一图像和第二图像之间的特定图像的特定像素的值的方法。该方法包括：基于第一运动矢量场（D'）的第一运动矢量（D）和第二运动矢量运动矢量运算矢量差值（D < 对应于第一图像的SUB> 3（x，n-1））; 基于第二运动矢量场（D 3> 3）的第三运动矢量运动矢量运算矢量差分， / SUB>（x，n））; 以及如果所述第一运动矢量差小于所述第二运动矢量差，则基于所述第一图像的第一像素的第一值建立所述特定像素的值，并且基于所述第二运动矢量差值建立所述特定像素的值如果第二运动矢量差小于第一运动矢量差，则第二图像的第二像素的像素值。

7. 发明申请

US20060056689A1 Image segmentation using template prediction 审中-公开
标题翻译：使用模板预测的图像分割
公开(公告)号：US20060056689A1
公开(公告)日：2006-03-16
申请号：US10535059
申请日：2003-10-28
申请人： Rimmert Wittebrood , Gerard De Haan
发明人： Rimmert Wittebrood , Gerard De Haan
IPC分类号： G06K9/34
CPC分类号： G06T7/11 , G06T2207/10016 , G06T2207/20021
摘要： The invention relates to image segmentation using templates and spatial prediction. The templates of neighboring pixels are used for predicting the features of a current pixel. The pixel is assigned to the segments of neighboring pixels according to the deviation of its features from the templates.
摘要翻译：本发明涉及使用模板和空间预测的图像分割。相邻像素的模板用于预测当前像素的特征。根据其特征与模板的偏差，将像素分配给相邻像素的片段。

8. 发明申请

US20050226462A1 Unit for and method of estimating a motion vector 审中-公开
标题翻译：用于估计运动矢量的单位和方法
公开(公告)号：US20050226462A1
公开(公告)日：2005-10-13
申请号：US10515745
申请日：2003-05-19
申请人： Rimmert Wittebrood , Gerard De Haan
发明人： Rimmert Wittebrood , Gerard De Haan
IPC分类号： G06T7/20 , H04N7/26 , G06K9/00 , G06K9/36 , H04N5/14
CPC分类号： H04N19/51 , G06T7/238 , G06T2207/10016 , H04N19/56
摘要： The motion estimation unit (100) being arranged to estimate a current motion vector for a first group (212) of pixels, comprises: a generating unit (106) for generating a set of candidate motion vectors for the first group (212) of pixels, with the candidate motion vectors being extracted from a set of previously estimated motion vectors; a match error unit (102) for calculating match errors of respective candidate motion vectors; and a selection unit (104) for selecting the current motion vector from the candidate motion vectors. The motion estimation unit (100) is arranged to modulate the match error on basis of a result of segmentation for the first image, into segments of pixels, whereby the result of segmentation is related to a probability that the first group of pixels and a second group of pixels, on basis of which the candidate motion vector is determined, both correspond to the same segment.
摘要翻译：运动估计单元（100）被布置为估计第一组（212）像素的当前运动矢量，包括：生成单元（106），用于生成第一组像素（212）的候选运动矢量集合，其中从一组先前估计的运动矢量中提取候选运动矢量; 用于计算各个候选运动矢量的匹配误差的匹配误差单元（102）; 以及用于从候选运动矢量中选择当前运动矢量的选择单元（104）。运动估计单元（100）被布置为基于第一图像的分割结果将匹配误差调制为像素段，由此分割结果与第一组像素和第二像素的概率相关基于候选运动矢量确定的像素组都对应于相同的段。

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