VERFAHREN ZUR ERZEUGUNG UND ZUR AUSWERTUNG EINES STROMS VON BILDDATEN FÜR VIDEOÜBERTRAGUNG
    2.
    发明授权
    VERFAHREN ZUR ERZEUGUNG UND ZUR AUSWERTUNG EINES STROMS VON BILDDATEN FÜR VIDEOÜBERTRAGUNG 失效
    一种用于生成和当前图像数据的视频传送评价

    公开(公告)号:EP0834233B1

    公开(公告)日:2000-01-05

    申请号:EP96909068.7

    申请日:1996-04-20

    申请人: ROBERT BOSCH GMBH

    IPC分类号: H04N7/64 H04N7/54

    CPC分类号: H04N7/54 H04N19/89

    摘要: A process is proposed for producing a video data stream destined for transmission over a data channel such as a radio telephone channel. The images are divided into a number of macro blocks and the video data is also divided into classes based on data type. The video data from at least some of the classes are incorporated in the stream in macro blocks. By contrast with the proposed standard H.263, video data of fixed length, in particular the DQUANT- and INTRADC values, are combined by macro block in a class intended for that purpose (ADMIN + DC-INTRA) and incorporated sequentially into the stream, without transmitting variable-length video data between them. Also proposed is a process for evaluating a video data stream: a first set of coded macro blocks is decoded starting from the video data bits transmitted first and a second set of coded macro blocks is decoded starting from the bits of the class transmitted last.

    VERFAHREN ZUR ERZEUGUNG UND ZUR AUSWERTUNG EINES STROMS VON BILDDATEN FÜR VIDEOÜBERTRAGUNG
    10.
    发明公开
    VERFAHREN ZUR ERZEUGUNG UND ZUR AUSWERTUNG EINES STROMS VON BILDDATEN FÜR VIDEOÜBERTRAGUNG 失效
    一种用于生成和当前图像数据的视频传送评价

    公开(公告)号:EP0834233A1

    公开(公告)日:1998-04-08

    申请号:EP96909068.0

    申请日:1996-04-20

    申请人: ROBERT BOSCH GMBH

    IPC分类号: H04N7

    CPC分类号: H04N7/54 H04N19/89

    摘要: A process is proposed for producing a video data stream destined for transmission over a data channel such as a radio telephone channel. The images are divided into a number of macro blocks and the video data is also divided into classes based on data type. The video data from at least some of the classes are incorporated in the stream in macro blocks. By contrast with the proposed standard H.263, video data of fixed length, in particular the DQUANT- and INTRADC values, are combined by macro block in a class intended for that purpose (ADMIN + DC-INTRA) and incorporated sequentially into the stream, without transmitting variable-length video data between them. Also proposed is a process for evaluating a video data stream: a first set of coded macro blocks is decoded starting from the video data bits transmitted first and a second set of coded macro blocks is decoded starting from the bits of the class transmitted last.