Method for encoding digitized images
    2.
    发明授权
    Method for encoding digitized images 有权
    数字化图像编码方法

    公开(公告)号:US07164803B2

    公开(公告)日:2007-01-16

    申请号:US10221049

    申请日:2001-03-07

    申请人: Maurice Remy

    发明人: Maurice Remy

    IPC分类号: G06K9/36 G06K9/00 G06K9/46

    CPC分类号: H03M7/46 H03M7/30 H04N1/644

    摘要: A method of encoding a digitised image including several pixel lines, which consists in encoding one line with a series of sub-codes characteristic of the length of the successive fields and their colour. When the image includes several identical successive lines, the method encodes the first one of the successive lines and completes with a sub-code characterising the repetition of the line and the number of times the line is repeated following the first line. When the image includes several lines including the same succession of colours, the method encodes the first one of the several lines including the same successive code and completes the code with a succession of sub-codes characterising the repetition of the succession of colours and the length of different fields of the different lines.

    摘要翻译: 一种对包括若干像素线的数字化图像进行编码的方法,该方法包括对具有连续场的长度特征的一系列子代码及其颜色进行一行编码。 当图像包括几个相同的连续行时,该方法对连续行中的第一行进行编码,并以表示行的重复的次代码和第一行之后重复该行的次数来完成。 当图像包括包括相同序列的颜色的几行时,该方法对包含相同连续代码的几行中的第一行进行编码,并且用一系列子代码完成代码,该子代码表示重复连续的颜色和长度 不同领域的不同行。

    System for reducing visible noise in television images
    3.
    发明授权
    System for reducing visible noise in television images 失效
    减少电视图像中可见噪声的系统

    公开(公告)号:US4352126A

    公开(公告)日:1982-09-28

    申请号:US177012

    申请日:1980-08-11

    IPC分类号: G06T7/20 H04N5/14 H04N5/21

    CPC分类号: H04N5/21 G06T7/2053 H04N5/144

    摘要: A motion detector system reduces visible noise in television image signals by use of a numerical time filter. A sample memory is coupled to the output of the time filter. In the time filter, the sample of the images to be treated is combined with a corresponding and preceding sample delivered by the sample memory. A decision circuit determines whether the combination signal has a parameter of the time filter. A subtraction circuit has a first input coupled to receive the image sample which is to be treated and a second input coupled to receive the corresponding sample delivered by the sample memory. A low-pass filter has parallel inputs for receiving samples delivered by the subtracting circuit. A sign output is derived from an exclusive OR circuit coupled to a low-pass filter and a band-pass filter. A polarity reversal circuit responds to the two filters under control of the OR circuit for executing a polarity reversal when the values of the inputs of the exclusive OR circuit are different, depending on a threshold-type decision circuit.

    摘要翻译: 运动检测器系统通过使用数字时间滤波器来减少电视图像信号中的可见噪声。 样本存储器耦合到时间滤波器的输出。 在时间滤波器中,要处理的图像的样本与由样本存储器传送的相应和之前的样本组合。 判定电路确定组合信号是否具有时间滤波器的参数。 减法电路具有耦合以接收要被处理的图像样本的第一输入和耦合以接收由采样存储器传送的相应样本的第二输入。 低通滤波器具有用于接收由减法电路传送的样本的并行输入。 符号输出从耦合到低通滤波器和带通滤波器的异或电路导出。 根据阈值型判定电路,当异或​​电路的输入值不同时,极性反转电路在OR电路的控制下响应于执行极性反转的两个滤波器。