公开(公告)号：US08457424B2

公开(公告)日：2013-06-04

申请号：US12406513

申请日：2009-03-18

申请人： Marko Hahn ,  Peter Rieder ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

发明人： Marko Hahn ,  Peter Rieder ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

IPC分类号： H04N7/50

CPC分类号： G06T7/223 ,  G06T2200/28 ,  G06T2207/20021

摘要： A method for testing a motion vector is described, which has: provision of at least one item of motion information assigned to the image sequence; storing a first image section of the first image in a first buffer memory and storing a second image section of the second image in a second intermediate memory, whereby a position of the first image section in the first image and a position of the second image section in the second image have reciprocal offset, which is dependent on the at least one item of motion information; determining a first image block in the first image section and a second image block in a second image section using the motion vector; comparing the contents of the first and of the second image block.

公开(公告)号：US20090238409A1

公开(公告)日：2009-09-24

申请号：US12406513

申请日：2009-03-18

申请人： Marko Hahn ,  Peter Rieder ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

发明人： Marko Hahn ,  Peter Rieder ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

IPC分类号： G06T7/20

CPC分类号： G06T7/223 ,  G06T2200/28 ,  G06T2207/20021

摘要： A method for testing a motion vector is described, which has: provision of at least one item of motion information assigned to the image sequence; storing a first image section of the first image in a first buffer memory and storing a second image section of the second image in a second intermediate memory, whereby a position of the first image section in the first image and a position of the second image section in the second image have reciprocal offset, which is dependent on the at least one item of motion information; determining a first image block in the first image section and a second image block in a second image section using the motion vector; comparing the contents of the first and of the second image block.

摘要翻译： 描述了用于测试运动矢量的方法，其具有：提供分配给图像序列的至少一个运动信息项; 将第一图像的第一图像部分存储在第一缓冲存储器中，并将第二图像的第二图像部分存储在第二中间存储器中，由此第一图像中的第一图像部分的位置和第二图像部分的位置 在所述第二图像中具有相互偏移，所述偏移依赖于所述至少一个运动信息项; 使用所述运动矢量确定所述第一图像部分中的第一图像块和第二图像部分中的第二图像块; 比较第一和第二图像块的内容。

公开(公告)号：US20080246874A1

公开(公告)日：2008-10-09

申请号：US12098849

申请日：2008-04-07

申请人： Marko Hahn ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

发明人： Marko Hahn ,  Christian Tuschen ,  Gunter Scheffler ,  Markus Schu

IPC分类号： H04N7/01 ,  H04N5/46

CPC分类号： H04N7/012 ,  H04N5/14

摘要： A method for detecting a video signal that represents an image sequence and exhibits linewise repeated video data comprises selecting a plurality of line groups each having a first, a second and a third line, which originate from two consecutive fields in the case of a field sequence and from one field in the case of a frame sequence. The method determines for each line group a first line-distance measure for a difference between video contents of the first and second lines and a second line-distance measure for a difference between video contents of the second and third lines. The method then interprets the first and second line-distance measures with regard to the presence of a significant difference between these line-distance measures.

摘要翻译： 一种用于检测表示图像序列并呈现线性重复视频数据的视频信号的方法包括：在场序列的情况下，选择多个具有第一，第二和第三行的行组，其从两个连续字段起源 并且在帧序列的情况下来自一个场。 该方法为每个线路组确定第一和第二线路的视频内容之间的差异的第一线路距离测量和第二线路和第三线路的视频内容之间的差异的第二线路距离测量。 然后，该方法解释第一和第二线路距离措施关于这些线路距离度量之间存在显着差异。

公开(公告)号：US20060274834A1

公开(公告)日：2006-12-07

申请号：US11444976

申请日：2006-06-01

申请人： Marko Hahn ,  Peter Rieder ,  Gunter Scheffler

发明人： Marko Hahn ,  Peter Rieder ,  Gunter Scheffler

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

CPC分类号： H04N19/42 ,  G06T7/238 ,  G06T2207/10016 ,  H04N5/144 ,  H04N19/43 ,  H04N19/51

摘要： An image to be interpolated is subdivided into a number of image blocks and a motion estimation technique is implemented to provide at least one initial motion vector for each of the image blocks. A modified motion vector is generated for each image block based on the initial motion vectors assigned to the individual image blocks. At least one additional image block is determined through which the motion vector assigned to the given image block passes at least partially, and the modified motion vector is generated as a function of the initial motion vector that is assigned to this at least one additional image block.

摘要翻译： 要插值的图像被细分为多个图像块，并且实施运动估计技术以为每个图像块提供至少一个初始运动矢量。 基于分配给各个图像块的初始运动向量，为每个图像块生成修改的运动矢量。 确定分配给给定图像块的运动矢量至少部分地通过至少一个附加图像块，并且根据分配给该至少一个附加图像块的初始运动矢量生成经修改的运动矢量 。

公开(公告)号：US5027194A

公开(公告)日：1991-06-25

申请号：US359100

申请日：1989-05-31

申请人： Gunter Scheffler

发明人： Gunter Scheffler

IPC分类号： H03H17/00 ,  H03H17/04 ,  H03H21/00 ,  H04N9/64 ,  H04N9/77

CPC分类号： H04N9/646

摘要： A method and an apparatus for the simultaneous reduction of noise and cross-color interference in television signals includes a picture processor having a recursive filter for processing a luminance signal and two chrominance signals. The picture processor also has a change detector connected to the recursive filter for determining filter coefficients for both chrominance signals from the luminance signal and feeding the filter coefficients as input signals to the recursive filter. The change detector for the luminance signal has comparison devices with variable thresholds and two evaluation circuits triggered by the comparison devices for defining the filter coefficients for the luminance signal and the chrominance signals.

摘要翻译： 用于同时降低电视信号中的噪声和交叉色干扰的方法和装置包括具有用于处理亮度信号和两个色度信号的递归滤波器的图像处理器。 图像处理器还具有连接到递归滤波器的变化检测器，用于根据亮度信号确定两个色度信号的滤波器系数，并将滤波器系数作为输入信号馈送到递归滤波器。 用于亮度信号的变化检测器具有可变阈值的比较器件和由用于定义亮度信号和色度信号的滤波器系数的比较器件触发的两个评估电路。