公开(公告)号：WO8903157A3

公开(公告)日：1989-07-13

申请号：PCT/US8803327

申请日：1988-09-29

Applicant: TECHNOLOGY INC 64

Inventor： WAN SUZ HSI ,  SIMON ALLEN HENRY ,  GOLIN STUART JAY ,  ASTLE BRIAN ,  KEITH JOHN MICHAEL

IPC: G11B27/034 ,  G11B27/10 ,  H04N1/41 ,  H04N5/85 ,  H04N5/92 ,  H04N5/926 ,  H04N7/24 ,  H04N7/26 ,  H04N7/36 ,  H04N9/804 ,  H04N9/806 ,  H04N9/808 ,  H04N9/82 ,  H04N11/04 ,  H04N9/80 ,  H04N7/137

CPC classification number: H04N11/042 ,  G11B27/034 ,  G11B27/105 ,  G11B2220/213 ,  G11B2220/2545 ,  H04N5/85 ,  H04N5/9206 ,  H04N5/9261 ,  H04N7/24 ,  H04N9/8042 ,  H04N9/8066 ,  H04N9/8216 ,  H04N19/00 ,  H04N19/503

Abstract: A full motion color digital video signal (52) is compressed, formated for transmission, recorded on compact disc media (20) and decoded at conventional video frame rates. During compression, regions of a frame are individually analyzed to select optimum fill coding methods specific to each region. Region decoding time estimates are made to optimize compression thresholds. Region descriptive codes conveying the size and locations of the regions are grouped together in a first segment of a data stream. Region fill codes conveying pixel amplitude indications for the regions are grouped together according to fill code type and placed in other segments of the data stream. The data stream segments are individually variable length coded according to their respective statistical distributions and formatted to form data frames. The number of bytes per frame is dithered by the addition of auxiliary data determined by a reverse frame sequence analysis to provide an average number selected to minimize pauses of the compact disc during playback thereby avoiding unpredictable seek mode latency periods characteristic of compact discs. A decoder includes a variable length decoder responsive to statistical information in the code stream for separately variable length decoding individual segments of the data stream. Region location data is derived from region descriptive data and applied with region fill codes to a plurality of region specific decoders selected by detection of the fill code type (e.g., relative, absolute, dyad and (DPCM) and decoded region pixels are stored in a bit map for subsequent display.

Abstract translation: 全彩色数字视频信号（52）被压缩，形成传输，记录在光盘媒体（20）上，并以传统的视频帧速率进行解码。 在压缩期间，分别分析帧的区域以选择特定于每个区域的最佳填充编码方法。 进行区域解码时间估计以优化压缩阈值。 传达区域的大小和位置的区域描述性代码在数据流的第一段中被分组在一起。 传达区域的像素幅度指示的区域填充代码根据填充代码类型被分组在一起并且被放置在数据流的其他分段中。 数据流段根据它们各自的统计分布单独变长编码并格式化以形成数据帧。 通过添加由反向帧序列分析确定的辅助数据来抖动每帧的字节数，以提供选择的平均数以最小化回放期间光盘的暂停，从而避免光盘的不可预知寻道模式等待时间周期。 解码器包括响应码流中的统计信息的可变长度解码器，用于分别可变长度地解码数据流的各个段。 区域位置数据是从区域描述性数据导出的，并且通过区域填充代码应用于通过检测填充代码类型（例如，相对，绝对，二元和（DPCM））选择的多个区域特定解码器，并且解码区域像素被存储在 位图用于后续显示。