公开(公告)号：US20070139450A1

公开(公告)日：2007-06-21

申请号：US10577097

申请日：2004-10-20

申请人： Gerard De Haan ,  Paul Hofman

发明人： Gerard De Haan ,  Paul Hofman

IPC分类号： G09G5/02

CPC分类号： H04N1/40062 ,  H04N1/40068 ,  H04N5/44504 ,  H04N7/0882 ,  H04N21/42653 ,  H04N21/4402 ,  H04N21/4888

摘要： Method for rendering smooth teletext graphics, when an input teletext page (D1) is to be displayed at a target resolution on a device. The method comprises the steps of:—separating (100) non-text information and text information composing the input teletext page (D1) in order to give as output an intermediate non-text bitmap (D5) at an intermediate resolution and a final text bitmap (D4) at said target resolution;—scaling up (200) the intermediate non-text bitmap (D5) to obtain a final non-text bitmap (D7) at said target resolution, using an advanced up-scaling algorithm; and,—merging (300) the final non-text bitmap (D7) and the final text bitmap (D4) in order to give an output of a rendered bitmap (D) having the target resolution.

摘要翻译： 当要在设备上以目标分辨率显示输入图文电视页面（D 1）时，用于渲染平滑图文电视图形的方法。 该方法包括以下步骤： - 分离（100）构成输入图文页面（D 1）的非文本信息和文本信息，以便以中间分辨率给出作为输出的中间非文本位图（D 5）和 在所述目标分辨率下的最终文本位图（D 4）; - 使用中间非文本位图（D 5）扩展（200）以获得所述目标分辨率的最终非文本位图（D 7） 缩放算法; 以及 - 加密（300）最终非文本位图（D 7）和最终文本位图（D 4），以给出具有目标分辨率的渲染位图（D）的输出。

公开(公告)号：US07206027B2

公开(公告)日：2007-04-17

申请号：US10493793

申请日：2002-10-18

申请人： Gerard De Haan ,  Rogier Lodder

发明人： Gerard De Haan ,  Rogier Lodder

IPC分类号： H04N7/01

CPC分类号： G06T3/403

摘要： The invention relates to a method and a device to increase the resolution of an image by interpolating along edges of the image. Edges are detected and their direction is calculated (10). The interpolation (12) of new pixels is carried out along the direction of the edges. According to the invention, a pre-filter (8) is used with a high-pass filtering in the direction in which new pixels are interpolated, and a low-pass filtering in another direction.

摘要翻译： 本发明涉及一种通过沿图像边缘内插来增加图像分辨率的方法和装置。 检测边缘，计算其方向（10）。 新像素的插值（12）沿着边缘的方向被执行。 根据本发明，使用预滤波器（8），在新像素被插值的方向上进行高通滤波，并且在另一个方向上进行低通滤波。

公开(公告)号：US20060257029A1

公开(公告)日：2006-11-16

申请号：US10557966

申请日：2004-05-13

申请人： Gerard De Haan

发明人： Gerard De Haan

IPC分类号： G06K9/48 ,  G06K9/36

CPC分类号： G06T3/403 ,  G06K9/4609 ,  G06T7/13 ,  G06T7/238 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/20021

摘要： A method of estimating an edge orientation located in a neighborhood of a particular pixel (100) of an image is disclosed. The method comprises creating a set of candidate edge orientations; evaluating the candidate edge orientations by means of computing for each of the candidate edge orientations a match error for a corresponding pair of test groups (104, 106) of pixels, on basis of a difference between pixel values of the test two groups (104, 106) of the corresponding pair of test groups of pixels; and selecting a first one of the candidate edge orientations from the set of candidate edge orientations on basis of the respective match errors and assigning the first one of the candidate edge orientations to a target block of pixels (102). An advantage of the method is that a relatively low number of computations is required. This is achieved because the estimated edge orientation is assigned to a target block of pixels (102).

摘要翻译： 公开了一种估计位于图像的特定像素（100）附近的边缘取向的方法。 该方法包括创建一组候选边缘取向; 通过针对每个候选边缘取向计算候选边缘取向，基于测试两组（104,106）的像素值之间的差异，针对相应的一对像素的测试组（104,106）的匹配误差， 106）相应的一组测试组的像素; 以及基于相应的匹配误差从候选边缘取向集中选择候选边缘取向中的第一个，并将候选边缘取向中的第一个分配给目标像素块（102）。 该方法的优点是需要相对较少数量的计算。 这是因为估计的边缘方向被分配给目标像素块（102）。

公开(公告)号：US20060159175A1

公开(公告)日：2006-07-20

申请号：US10563849

申请日：2004-07-01

申请人： Gerard De Haan

发明人： Gerard De Haan

IPC分类号： H04N11/02 ,  H04N7/12 ,  H04B1/66 ,  H04N11/04

CPC分类号： H04N7/014 ,  H04N7/0132

摘要： A motion-compensated image signal interpolation unit (200) for generating an interpolated image being located at a first predetermined temporal distance (a) from the first image and being located at a second predetermined temporal distance (1−a) from the second image is disclosed. The interpolation unit (200) comprises: motion estimation means (202) for furnishing a first and a second motion vector relating to the first and second image; furnishing means (204, 206) for furnishing a first group of samples on basis of values of pixels of the first image and the first motion vector and for furnishing a second group of samples on basis of values of pixels of the second image and the second motion vector, and filtering means (212) for ordered statistical filtering of the samples of the first and the second group to produce a first value of a first pixel of the interpolated image (102), whereby a first quotient is substantially equal to a second quotient, the first quotient being determined by a first spatial distance (x1) between a first one of the samples of the first group and a second one of the samples of the first group and the first predetermined temporal distance (α), the second quotient being determined by a second spatial distance (x2) between a first one of the samples of the second group and a second one of the samples of the second group and the second predetermined temporal distance (1−α).

摘要翻译： 一种运动补偿图像信号插值单元，用于产生位于距离第一图像的第一预定时间距离（a）并且位于距离第二图像的第二预定时间距离（1-a）处的内插图像; 披露 插值单元（200）包括：用于提供与第一和第二图像相关的第一和第二运动向量的运动估计装置（202） 提供装置（204,206），用于根据第一图像和第一运动矢量的像素的值来提供第一组样本，并且用于根据第二图像和第二图像的像素的值来提供第二组样本 运动矢量和滤波装置（212），用于对第一和第二组的样本进行有序统计滤波，以产生内插图像（102）的第一像素的第一值，由此第一商大体上等于第二组 商，所述第一商由所述第一组的第一样本和所述第一组的样本中的第二样本之间的第一空间距离（x SUB> 1）和所述第一预定时间 距离（α），第二商由第二组的第一个样本和第二组的样本中的第二个样本之间的第二空间距离（x2> 2）确定， 第二预定时间段 nce（1-α）。

公开(公告)号：US20060098886A1

公开(公告)日：2006-05-11

申请号：US10541414

申请日：2003-12-04

申请人： Gerard De Haan

发明人： Gerard De Haan

IPC分类号： G06K9/46

CPC分类号： H04N19/527 ,  H04N19/533 ,  H04N19/56

摘要： The invention relates to a method for recursively estimating local vectors from at least one picture taken from an image sequence. To reduce the computational complexity of the estimation method without deteriorating its accuracy, it is proposed that the method comprises the steps of generating a first set of candidate vectors under at least partial use of recursion, selecting candidate vectors from the first set of candidate vectors according to a first criterion to form a smaller second set of candidate vectors, evaluating the candidate vectors of the second set of candidate vectors for a group of pixels based on a second criterion, determining the best vectors from the second set of candidate vectors according to said second criterion and assigning said determined best vectors to a group of pixels that is related to the group of pixels the candidate vectors of the second set of candidate vectors were evaluated for. The invention further relates to a device for recursively estimating local vectors from at least one picture taken from an image sequence, and to a computer program product comprising software code portions for recursively estimating local vectors from at east one picture taken from an image sequence.

摘要翻译： 本发明涉及一种从图像序列中获取的至少一幅图像递归地估计局部矢量的方法。 为了降低估计方法的计算复杂度而不降低其精度，提出了该方法包括以下步骤：在至少部分使用递归下生成第一组候选向量，从第一组候选向量中选择候选向量 以形成较小的第二组候选向量的第一标准，基于第二准则来评估一组像素的第二组候选向量的候选向量，根据所述第二准则确定来自第二组候选向量的最佳向量 将所述确定的最佳向量分配给与所述像素组相关的像素组，对所述第二候选矢量集合的候选向量进行评估。 本发明还涉及一种用于从从图像序列获取的至少一张照片递归地估计局部矢量的装置，以及包括软件代码部分的计算机程序产品，用于从从图像序列获取的东部一张照片递归地估计局部矢量。

公开(公告)号：US07010039B2

公开(公告)日：2006-03-07

申请号：US09855628

申请日：2001-05-15

申请人： Gerard De Haan ,  Mark Jozef Willem Mertens

发明人： Gerard De Haan ,  Mark Jozef Willem Mertens

IPC分类号： H01N7/12

CPC分类号： H04N19/553 ,  G06T7/238 ,  G06T2207/10016 ,  H04N19/503

摘要： An apparatus for detecting motion at a temporal intermediate position between a previous image and a next image has optimizing means (1) for optimizing a criterion function for candidate vectors, whereby the criterion function depends on data from both the previous and the next image. The motion is detected at the temporal intermediate position in non-covering and in non-uncovering areas. The apparatus according to the invention has means for detecting covering and uncovering areas (2) and has its optimizing means being arranged to carry out the optimizing at the temporal position of the next image in covering areas and at the temporal position of the previous image in uncovering areas.

摘要翻译： 一种用于在先前图像和下一图像之间的时间中间位置处检测运动的装置具有用于优化用于候选向量的标准函数的优化装置（1），由此标准函数取决于来自前一图像和下一图像的数据。 在非覆盖区域和非露出区域中的时间中间位置处检测运动。 根据本发明的装置具有用于检测覆盖和露出区域（2）的装置，并且其优化装置被布置成在覆盖区域和先前图像的时间位置处执行下一图像的时间位置处的优化 揭露地区。

公开(公告)号：US20060038474A1

公开(公告)日：2006-02-23

申请号：US10527110

申请日：2003-09-05

申请人： Robbert Van Wesenbeeck ,  Gerard De Haan ,  Michiel Klompenhouwer

发明人： Robbert Van Wesenbeeck ,  Gerard De Haan ,  Michiel Klompenhouwer

IPC分类号： H01J29/50

CPC分类号： H01J29/803 ,  H01J2229/186

摘要： A color picture display device having a shadow mask is provided comprising a cathode ray tube (CRT) having a gun (1) for generating at least two electron beams mutually different colors and a display screen (2). The screen has phosphor deposits for emitting light of different colors. The device has a deflection system (3) for scanning the electron beams across the display screen (2) in a pattern of successive, substantially parallel lines, each line being scanned in a scanning direction. The device further comprises means for diverging the landing points on the screen for at least one of the beams with respect to one of the other beams in a direction other than the scanning direction, and means for interpolation of color video data, used to control the beam intensity, in order to reduce shift errors due to the diverged beams. Further, a method for operation of such a color picture display device is disclosed.

摘要翻译： 提供一种具有荫罩的彩色图像显示装置，包括具有用于产生至少两个相互不同颜色的电子束的枪（1）的阴极射线管（CRT）和显示屏（2）。 屏幕具有用于发射不同颜色的光的荧光体沉积物。 该装置具有偏转系统（3），用于以连续的基本上平行的线的图案扫描跨越显示屏（2）的电子束，每条线沿扫描方向扫描。 该装置还包括用于相对于其它波束中的至少一个在除了扫描方向之外的方向上分散至少一个光束的屏幕上的着陆点的装置，以及用于控制彩色视频数据的内插的装置 光束强度，以减少由于发散光束引起的偏移误差。 此外，公开了这种彩色图像显示装置的操作方法。

公开(公告)号：US20050226330A1

公开(公告)日：2005-10-13

申请号：US10498953

申请日：2002-12-16

申请人： Wilhelmus Bruls ,  Frederik De Bruijn ,  Gerard De Haan ,  Dzevdet Burazerovic ,  Gerardus Vervoort

发明人： Wilhelmus Bruls ,  Frederik De Bruijn ,  Gerard De Haan ,  Dzevdet Burazerovic ,  Gerardus Vervoort

IPC分类号： H04N7/32 ,  H04N7/26 ,  H04N7/36 ,  H04N7/46 ,  H04N7/12

CPC分类号： H04N19/59 ,  H04N19/31 ,  H04N19/503 ,  H04N19/587

摘要： Method for encoding a digital video stream, comprising the steps of encoding a video sequence into a full frame sequence, forming a decimated frame sequence by removing a predetermined number of frames from the full frame sequence by means of temporal decimation, locally decoding the full frame sequence, locally decoding the decimated frame sequence, temporally interpolating the decoded decimated frame sequence by means of an interpolator, comparing the locally decoded frames of the full frame sequence with the corresponding frames of the locally interpolated frame sequence, determining residual information for a frame based on at least the comparison for that frame, and providing an output stream comprising the decimated frame sequence and the determined residual information.

摘要翻译： 用于对数字视频流进行编码的方法，包括以下步骤：将视频序列编码为全帧序列，通过借助于时间抽取从全帧序列中去除预定数量的帧来形成抽取帧序列，本地解码全帧 序列，本地解码抽取的帧序列，通过内插器对经解码的抽取帧序列进行时间内插，将全帧序列的局部解码帧与局部内插帧序列的对应帧进行比较，确定基于帧的残差信息 至少对该帧进行比较，以及提供包括抽取帧序列和所确定的剩余信息的输出流。

公开(公告)号：US20050190164A1

公开(公告)日：2005-09-01

申请号：US10515076

申请日：2003-05-21

申请人： Leo Velthoven ,  Michiel Klompenhouwer ,  Gerard De Haan

发明人： Leo Velthoven ,  Michiel Klompenhouwer ,  Gerard De Haan

IPC分类号： G09G3/36 ,  G06T5/00 ,  G06T5/20 ,  G09G3/20 ,  G09G3/28 ,  G09G3/30 ,  G09G3/34 ,  H04N5/14 ,  G09G5/00

CPC分类号： H04N5/21 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20201 ,  G09G3/20 ,  G09G2320/0261 ,  G09G2320/106 ,  H04N5/145 ,  H04N5/20

摘要： The invention relates to a method and a circuit arrangement to reduce motion blur of images shown in non-stroboscopic display devices, in particular Liquid Crystal Display Panels (LCDs). Thin Film Transistor Displays (TFTs), Colour Sequential Displays. Plasma Display Panels (PDPs), Digital Micro Mirror Devices or Organic Light-Emitting Diode (OLED) displays, in which motion vectors depending on moving components in each image of an input video, signal are calculated, in which anti-motion blur filtering of the input video signal is performed based on the calculated motion vectors to produce an output video signal, and in which images are generated on said display device depending on said output video signal. In order to provide an improved spatial filtering with less noise enhancement and less noise modulation, it is proposed that edge characteristics in each image of the input video signal are determined and that anti-motion blur filtering is further based on said determined edge characteristics. In this way, spatial filtering is concentrated on significant parts of an image only, and both noise enhancement and noise modulation are reduced.

摘要翻译： 本发明涉及一种用于减少非频闪显示装置，特别是液晶显示面板（LCD）中显示的图像的运动模糊的方法和电路装置。 薄膜晶体管显示器（TFT），彩色顺序显示器。 等离子体显示面板（PDP），数字微镜装置或有机发光二极管（OLED）显示器，其中计算取决于输入视频的每个图像中的运动分量的运动矢量信号，其中反运动模糊滤波 基于所计算的运动矢量执行输入视频信号以产生输出视频信号，并且根据所述输出视频信号在所述显示装置上生成图像。 为了提供具有较少噪声增强和较少噪声调制的改进的空间滤波，提出确定输入视频信号的每个图像中的边缘特性，并且进一步基于所确定的边缘特性进行反运动模糊滤波。 以这种方式，空间滤波仅集中于图像的重要部分，并且降低了噪声增强和噪声调制。

公开(公告)号：US20050030424A1

公开(公告)日：2005-02-10

申请号：US10639421

申请日：2003-08-05

申请人： Gerard De Haan ,  Erwin Bellers

发明人： Gerard De Haan ,  Erwin Bellers

IPC分类号： H04N5/44 ,  H04N7/01 ,  H04N11/20

CPC分类号： H04N7/0135 ,  H04N7/012

摘要： An image conversion unit (100) for converting an input image into an output image is disclosed. The image conversion unit (100) comprises: first computing means (104) for computing a first weighted sum of a first group of pixel values, the first group of pixel values corresponding to pixels of the input image; second computing means (102) for computing a second weighted sum of a second group of interpolated values, the second group of interpolated values being computed by means of interpolation for spatial locations which are not present at the sampling grid of the input image; combining means (106) for computing a third sum by combining the first weighted sum and the second weighted sum; and clipping means (108) for clipping the third sum between a minimum value and a maximum value, the minimum value and the maximum value derived from pixel values of the input image.

摘要翻译： 公开了一种用于将输入图像转换为输出图像的图像转换单元（100）。 图像转换单元（100）包括：第一计算装置（104），用于计算第一组像素值的第一加权和，对应于输入图像的像素的第一组像素值; 第二计算装置（102），用于计算第二组内插值的第二加权和，所述第二组内插值通过对输入图像的采样网格处不存在的空间位置进行插值来计算; 用于通过组合所述第一加权和和所述第二加权和来计算第三和的组合装置（106） 以及用于限制最小值和最大值之间的第三和的限幅装置（108），从输入图像的像素值导出的最小值和最大值。