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62 条记录 (耗时 0.037 秒)

    Digital image data storage, data transfer and data broadcast apparatus and method
    52.
    发明授权
    Digital image data storage, data transfer and data broadcast apparatus and method 失效
    数字图像数据存储，数据传输和数据广播设备及方法

    公开(公告)号：US06266081B1

    公开(公告)日：2001-07-24

    申请号：US08801350

    申请日：1997-02-19

    申请人： Tadashi Ono ,  Youichi Amano ,  Hiroyuki Uenaka ,  Akira Iketani ,  Masakazu Nishino ,  Yuji Fujiwara ,  Tatsuro Juri

    发明人： Tadashi Ono ,  Youichi Amano ,  Hiroyuki Uenaka ,  Akira Iketani ,  Masakazu Nishino ,  Yuji Fujiwara ,  Tatsuro Juri

    IPC分类号： G06K900

    CPC分类号： H04N19/112 ,  H04N5/781 ,  H04N5/783 ,  H04N5/9264

    摘要： A image signal processing apparatus and method for static image display are provided. Deformation at an edge of an image can be reduced by eliminating a temporal factor and vertical resolution can be retained even after data supplementation. In the process of compressing and decompressing interlace-scanned image data, one of two fields of a frame is selected by a field selector, image data is supplemented and reproduced based on the selected field data by a supplementor, and image data is outputted as a static image without deformation. As a result, more bits can be allocated for encoding by selecting and compressing one field data only and it leads to a higher quality image display. Furthermore, display deformation can be reduced by supplementing high frequency components as zero in the decompression processing.

    摘要翻译： 提供了一种用于静态图像显示的图像信号处理装置和方法。 可以通过消除时间因素来减少图像边缘的变形，即使在数据补充之后也可以保留垂直分辨率。 在对隔行扫描图像数据进行压缩和解压缩的过程中，通过场选择器选择帧的两个场中的一个，通过补码器基于所选择的场数据来补充和再现图像数据，并且将图像数据作为 静态图像无变形。 结果，可以通过仅选择和压缩一个场数据来分配更多的比特来进行编码，并且其导致更高质量的图像显示。 此外，通过在解压缩处理中补充高频分量为零，可以减少显示变形。

    Apparatus for recording and reproducing band-compression coded video data
    60.
    发明授权
    Apparatus for recording and reproducing band-compression coded video data 失效
    用于记录和再现带压缩编码视频数据的装置

    公开(公告)号：US5351131A

    公开(公告)日：1994-09-27

    申请号：US780986

    申请日：1991-10-23

    申请人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

    发明人： Masakazu Nishino ,  Tatsuro Juri ,  Hideki Ohtaka

    IPC分类号： H04N5/783 ,  H04N5/926 ,  H04N5/945 ,  H04N5/91

    CPC分类号： H04N5/9264 ,  H04N5/945 ,  H04N5/783

    摘要： Disclosed are a video signal recording apparatus for dividing digital video signal into blocks, transforming orthogonally, quantizing, coding in a variable length, and recording always in identical data quantity in a unit of specific number of blocks, and a video signal reproducing apparatus for decoding the recorded signal in variable length, quantizing inversely, transforming inversely and orthogonally, and reproducing the original digital video signal. The coding data in the specific number of blocks in the identical data quantity is divided in two code rows, the individual low frequency components are assigned to separate sync blocks, and high frequency components are also assigned to separate sync blocks, and recorded. When reproducing, if the sync block of high frequency components is wrong, it is possible to decode only with low frequency components, and the screen is reproduced at high fidelity to the reproducing speed at the time of high speed reproducing. By recording the position information indicating the boundary position between two code rows, or the concealment information showing the concealment state, even by variable length coding, the range of error concealment may be narrowed, and the effects of error may be minimized.

    摘要翻译： 公开了一种视频信号记录装置，用于将数字视频信号分成块，以可变长度进行正交，量化，编码，并以特定数量的块为单位总是以相同的数据量进行记录;以及视频信号再现装置，用于解码 以可变长度记录的信号，逆向量化，逆向和正交变换，并再现原始数字视频信号。 将相同数据量的特定数量的块中的编码数据划分为两个代码行，将各个低频分量分配给单独的同步块，并将高频分量分配给分离的同步块并记录。 当再现时，如果高频分量的同步块错误，则可以仅利用低频分量进行解码，并且在高速再现时以高保真度再现再现速度的画面。 通过记录指示两个代码行之间的边界位置的位置信息或表示隐藏状态的隐藏信息，即使通过可变长度编码，错误隐藏的范围也可能变窄，并且误差的影响可能最小化。