IMAGE DATA PROCESSING
    5.
    发明公开
    IMAGE DATA PROCESSING 审中-公开
    BILDDATENVERARBEITUNG

    公开(公告)号:EP2928191A1

    公开(公告)日:2015-10-07

    申请号:EP15164544.7

    申请日:2006-08-11

    申请人: RGB Systems, Inc.

    摘要: Methods of data encoding using trees formed with logic gates are described which lead to spatial compression of image data. Data encoding is achieved using a five-level wavelet transform, such as the Haar or the 2/10 transform. A dual transform engine is used, the first and engine being used for the first part of the first-level transform, the second part of the first-level transform and the subsequent-level transforms being performed by the second transform engine within a time interval which is less than or equal to the time taken by the first transform engine to effect the part-transform. Each bit plane of the resulting coefficients is then encoded by forming a tree structure from the bits and OR logical combinations thereof. Redundant data are removed from the resulting tree structure, and further data can be removed by using a predetermined compression profile. The resulting blocks of compressed data are of variable length and are packaged with sync words and index words for transmission so that the location and identity of the transformed data blocks can be determined from the received signal.

    摘要翻译: 描述了使用由逻辑门形成的树的数据编码方法,其导致图像数据的空间压缩。 使用五级小波变换(例如Haar或2/10变换)实现数据编码。 使用双变换引擎,第一和第一级引擎被用于第一级变换的第一部分,第一级变换的第二部分和后级转换由第二变换引擎在一段时间间隔内执行 其小于或等于第一变换引擎进行部分变换所花费的时间。 然后通过从比特形成树结构和其OR逻辑组合来对所得系数的每个比特平面进行编码。 从结果树结构中删除冗余数据,并且可以通过使用预定的压缩简档去除进一步的数据。 所得到的压缩数据块具有可变长度,并且与同步字和索引字封装以进行传输,从而可以根据接收到的信号确定变换数据块的位置和身份。

    VERFAHREN UND VORRICHTUNG ZUM MISCHEN VON VIDEOSTRÖMEN AUF DER MAKROBLOCK-EBENE
    9.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUM MISCHEN VON VIDEOSTRÖMEN AUF DER MAKROBLOCK-EBENE 审中-公开
    VERFAHREN UND VORRICHTUNG ZUM MISCHEN VONVIDEOSTRÖMENAUF DER MAKROBLOCK-EBENE

    公开(公告)号:EP2583461A1

    公开(公告)日:2013-04-24

    申请号:EP11727399.5

    申请日:2011-06-14

    IPC分类号: H04N7/26 H04N7/50 H04N7/24

    摘要: The invention relates to a method and device for mixing video streams in a video mixer device, by means of which a plurality of input video streams from different subscribers which are encoded with code words for macroblocks and in which the code words have interdependencies are combined into an output video stream. The input video streams are at least entropy-decoded to such a degree that the dependencies among the code words are dissolved, wherein the macroblocks are re-organized and mixed with each other, and the mixed macroblocks are entropy-encoded to obtain a new dedicated video stream.

    摘要翻译: 本发明涉及一种在视频混合设备中混合视频流的方法和装置,通过该方法和装置将来自不同用户的多个输入视频流编码为用于宏块的代码字,并且其中代码字具有相互依赖性的编码字被组合成 输出视频流。 输入视频流至少被熵解码到这样的程度,使得码字之间的相关性被解散,其中宏块被重新组织并彼此混合,并且混合宏块被熵编码以获得新的专用 视频流。