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    • 4. 发明申请
    • MOTION ESTIMATION AND COMPENSATION WITH CONTROLLED VECTOR STATISTICS
    • 运动估计和补偿与控制矢量统计
    • WO2003005731A1
    • 2003-01-16
    • PCT/IB2002/002420
    • 2002-06-20
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SCHUTTEN, Robert, J.RIEMENS, Abraham, K.VAN DER WOLF, Pieter
    • SCHUTTEN, Robert, J.RIEMENS, Abraham, K.VAN DER WOLF, Pieter
    • H04N7/34
    • H04N19/433H04N19/51
    • Method and system for motion compensation in video image data, comprising a motion estimator (12) arranged for analysing motion in consecutive frames of the video image data and deriving a motion vector field in dependence on said motion, a motion compensator (14) connected to the motion estimator (12) and first storage means (15). The motion compensator (14) is arranged for performing motion compensation by storing a subset of the video image data in a first storage means (15) and, for each vector retrieving the required data from the first storage means (15), where in cases that the required data is not entirely available in the first storage means (15), video image data containing at least the missing parts of the required data, is retrieved from a second storage means (10) and stored in the first storage means (15). The motion estimator (12) is further arranged to select motion vectors in the video motion vector field which meet at least one statistical property.
    • 一种视频图像数据中的运动补偿方法和系统,包括:运动估计器(12),用于分析视频图像数据的连续帧中的运动并根据所述运动导出运动矢量场;运动补偿器(14),连接到 运动估计器(12)和第一存储装置(15)。 运动补偿器(14)被布置为通过将视频图像数据的子集存储在第一存储装置(15)中并且对于从第一存储装置(15)检索所需数据的每个向量来执行运动补偿,其中在情况下 在第一存储装置(15)中所需数据不完全可用,至少包含所需数据的缺失部分的视频图像数据从第二存储装置(10)检索并存储在第一存储装置(15)中 )。 运动估计器(12)还被布置成选择满足至少一个统计特性的视频运动矢量场中的运动矢量。
    • 5. 发明申请
    • NOISE FILTERING IN IMAGES
    • 图像中的噪声滤波
    • WO2003073750A1
    • 2003-09-04
    • PCT/IB2003/000468
    • 2003-02-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.RIEMENS, Abraham, K.SCHUTTEN, Robert, J.
    • RIEMENS, Abraham, K.SCHUTTEN, Robert, J.
    • H04N5/21
    • H04N5/21
    • A temporal recursive filter unit (100,200,300,400) for noise filtering of a series of input images resulting in a series of output images comprises: means (102) for determining a value of a weighing factor, on basis of a difference between a first value of a first pixel of an input image and a second value of a second pixel of a first output image; and an adding (104) unit for calculating a third value of a third pixel of a second output image by adding of a first product of the value of the weighing factor and the first value of the first pixel, to a second product of a complement of the value of the weighing factor and the second value of the second pixel. The value (508) of the weighing factor is higher below a predetermined threshold (506) than above the threshold (506).
    • 用于对导致一系列输出图像的一系列输入图像的噪声滤波的时间递归滤波器单元(100,200,300,400)包括:用于基于第一值的差值来确定加权因子的值的装置(102) 输入图像的第一像素和第一输出图像的第二像素的第二值; 以及加法(104)单元,用于通过将所述加权因子的值和所述第一像素的第一值相加的第一乘积与补码的第二乘积相加来计算第二输出图像的第三像素的第三值 的加权因子的值和第二像素的第二值。 加权因子的值(508)比阈值(506)以上的预定阈值(506)更高。
    • 8. 发明申请
    • IMAGE SIZE EXTENSION
    • 图像尺寸延伸
    • WO2003017649A1
    • 2003-02-27
    • PCT/IB2002/002996
    • 2002-07-10
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.
    • KLOMPENHOUWER, Michiel, A.MERTENS, Mark, J., W.DE BRUIJN, Frederik, J.SCHUTTEN, Robert, J.
    • H04N5/44
    • H04N7/0122H04N5/145H04N5/2628
    • The image processing unit (200,201,203,205,207) comprises an extension unit (208) for extending a first image (110) at a side of the first image (110) with pixels of a second image (108) based on a second set of motion vectors (212). The image processing unit (200,201,203,205,207) further comprises a motion estimation unit (204) for estimating a first set of motion vectors (210) of pixels corresponding to a first portion (105) of a scene (100) which is visible in the first image (110) and a second image (108), and a motion extrapolation unit (206) for estimating the second set of motion vectors (212) of pixels corresponding to a second portion (103) of the scene (100) which is visible in the second image (108), but invisible in the first image (110), based on the first set of motion vectors (210).
    • 图像处理单元(200,201,203,205,207)包括扩展单元(208),用于基于第二组运动矢量(108)将第一图像(110)的一侧的第一图像(110)延伸到第二图像(108)的像素 212)。 图像处理单元(200,201,203,205,207)还包括运动估计单元(204),用于估计与第一图像中可见的场景(100)的第一部分(105)相对应的像素的第一组运动矢量(210) (110)和第二图像(108),以及用于估计对应于场景(100)的第二部分(103)的像素的第二组运动矢量(212)的运动外推单元(206) 第二图像(108),但是基于第一组运动矢量(210)在第一图像(110)中不可见。
    • 9. 发明申请
    • FACILITATING MOTION ESTIMATION
    • 促进运动估计
    • WO2002067576A1
    • 2002-08-29
    • PCT/IB2002/000068
    • 2002-01-11
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.
    • SCHUTTEN, Robert, J.RIEMENS, Abraham, K.
    • H04N5/44
    • H04N7/014H04N5/145
    • An apparatus and method are disclosed for facilitating a subsequent choice of a motion vector from a plurality of candidate motion vectors in a motion estimation method. In the method video image data from first, second and third consecutive groups (10, 20, 30) of image data are received. A first image part (12) of the first group of image data (10), a second image part (22) of the second group of image data (20), and a third image part (32) of the third group of image data (30) are identified wherein the positions of the three image parts (12,22,32) correspond to a motion trajectory that is indicated by a candidate motion vector. A first error measure is then calculated by testing for differences between the first image part (12) and the third image part (32) and quantified as a first error measure. A second error measure is calculated by testing for differences between either the first image part (12) and the second image part (22) or the second image part and the third image part and quantified as a second error measure. An output error measure is then quantified, wherein the output error measure is derived from either the first or the second or a combination of both error measures.
    • 公开了一种用于便于在运动估计方法中从多个候选运动矢量中随后选择运动矢量的装置和方法。 在方法中,接收来自图像数据的第一,第二和第三连续组(10,20,30)的视频图像数据。 第一组图像数据(10)的第一图像部分(12),第二组图像数据(20)的第二图像部分(22)和第三组图像的第三图像部分(32) 识别数据(30),其中三个图像部分(12,22,32)的位置对应于由候选运动矢量指示的运动轨迹。 然后通过测试第一图像部分(12)和第三图像部分(32)之间的差异并量化为第一误差测量来计算第一误差测量。 通过测试第一图像部分(12)和第二图像部分(22)或第二图像部分和第三图像部分之间的差异并被量化为第二误差测量来计算第二误差测量。 然后量化输出误差测量,其中输出误差测量从第一或第二或两个误差测量的组合导出。
    • 10. 发明申请
    • IMAGE PROCESSOR AND IMAGE DISPLAY APPARATUS PROVIDED WITH SUCH IMAGE PROCESSOR
    • 图像处理器和图像处理器提供的图像显示设备
    • WO2003024117A1
    • 2003-03-20
    • PCT/IB2002/003582
    • 2002-09-02
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.
    • VISSERS, Kornelis, A.RIEMENS, Abraham, K.SCHUTTEN, Robert, J.
    • H04N7/26
    • H04N19/51
    • The image processor (101) for motion compensated image processing comprises a motion compensation unit (106) for calculating an output image based on a particular motion vector field and based on a first input image and a second input image. The particular motion vector field can be calculated by a motion estimator (104) which is part of the image processor (101) or by an external unit (108). The image processor (101) is designed to select from which source, i.e. the motion estimator (104) or the external unit (108), the particular motion vector field is taken to calculate the output image. The external source is designed to calculate the particular motion vector field based on a motion vector field which was provided by the motion estimator (104) of the image processor (101).
    • 用于运动补偿图像处理的图像处理器(101)包括用于基于特定运动矢量场并基于第一输入图像和第二输入图像计算输出图像的运动补偿单元(106)。 特定运动矢量场可以由作为图像处理器(101)的一部分的运动估计器(104)或外部单元(108)计算。 图像处理器(101)被设计为从哪个源(即,运动估计器(104)或外部单元(108))选择特定运动矢量场来计算输出图像。 外部源被设计为基于由图像处理器(101)的运动估计器(104)提供的运动矢量场来计算特定运动矢量场。