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11 条记录 (耗时 0.012 秒)

    Method of and device for storing three-dimensional digital signals subjected to orthogonal transformation
    5.
    发明公开
    Method of and device for storing three-dimensional digital signals subjected to orthogonal transformation 失效
    用于存储受正向转换影响的三维数字信号的方法和装置

    公开(公告)号：EP0107203A3

    公开(公告)日：1985-12-04

    申请号：EP83110615

    申请日：1983-10-24

    申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

    发明人： Corgnier, Luigi ,  Guglielmo, Mario ,  Riolfo, Benedetto

    IPC分类号： G06F13/00 ,  H04N07/13 ,  H04N05/76

    CPC分类号： G06F12/0207 ,  H04N19/60 ,  H04N19/62 ,  H04N19/649

    摘要： Method of storing signals consisting of a succession of digital samples with three-dimensional structure which have already been bidimensionally transformed, and which are subjected to the transformation along the third dimension requiring the contemporaneous availability of samples of corresponding positions, belonging to Z successive bidimensional groups. The method provides a three-dimensional memory structure of Z planes each having the capacity of a group of samples, and the use of only two addressing modes of said memory alternating every Z groups; the first mode provides successive positions of the various planes to be addressed in sequence, the second mode provides corresponding positions of Z planes to be addressed with increments by Z on each plane. During each addressing, a reading operation occurs followed by a writing operation of a new sample in the just-read position. A device is also described for the implementation of the method.

    Method of and device for storing three-dimensional digital signals subjected to orthogonal transformation
    6.
    发明公开
    Method of and device for storing three-dimensional digital signals subjected to orthogonal transformation 失效
    用于存储正交变换进行三维数字信号的方法和装置。

    公开(公告)号：EP0107203A2

    公开(公告)日：1984-05-02

    申请号：EP83110615.8

    申请日：1983-10-24

    申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

    发明人： Corgnier, Luigi ,  Guglielmo, Mario ,  Riolfo, Benedetto

    IPC分类号： G06F12/02 ,  H04N7/13 ,  H04N5/76

    CPC分类号： G06F12/0207 ,  H04N19/60 ,  H04N19/62 ,  H04N19/649

    摘要： Method of storing signals consisting of a succession of digital samples with three-dimensional structure which have already been bidimensionally transformed, and which are subjected to the transformation along the third dimension requiring the contemporaneous availability of samples of corresponding positions, belonging to Z successive bidimensional groups.
    The method provides a three-dimensional memory structure of Z planes each having the capacity of a group of samples, and the use of only two addressing modes of said memory alternating every Z groups; the first mode provides successive positions of the various planes to be addressed in sequence, the second mode provides corresponding positions of Z planes to be addressed with increments by Z on each plane. During each addressing, a reading operation occurs followed by a writing operation of a new sample in the just-read position.
    A device is also described for the implementation of the method.

    摘要翻译： 存储信号由...组成的数字样本的具有三维结构的连续已经被bidimensionally转化，并且其的方法经受沿第三维度需要对应位置的样本的同期可用性改造，属于到Z的连续二维组 ， ... 该方法提供Z平面的三维存储器结构中的每个具有一组样品的容量，并交替使用每Z基团，所述存储器的唯一的两种寻址模式的; 第一模式提供了在序列要解决的不同平面的位置succesive，第二模式提供Z平面的对应位置被与增量由Z上的每个平面寻址。 在每个寻址，一个读操作的发生通过一个写在刚刚读位置的新业务样品其次。 ... 的装置因此描述了用于所述方法的实施。

    Method and device for coding an image signal with redundancy reduction with locally uniform distortion
    10.
    发明公开
    Method and device for coding an image signal with redundancy reduction with locally uniform distortion 失效
    为局部有均匀的失真编码具有冗余减少的图像信号的方法和装置。

    公开(公告)号：EP0100916A2

    公开(公告)日：1984-02-22

    申请号：EP83106970.3

    申请日：1983-07-15

    申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

    发明人： Chiariglione, Leonardi ,  Guglielmo, Mario

    IPC分类号： H04N7/133

    CPC分类号： H04N19/192 ,  H04N19/13 ,  H04N19/146 ,  H04N19/147 ,  H04N19/152 ,  H04N19/154 ,  H04N19/176 ,  H04N19/184 ,  H04N19/60 ,  H04N19/91

    摘要： Method of image signal coding, the image being subdivided into blocks to be coded in sequence; first a two-dimensional linear transformation is applied to each of said blocks, obtaining a set of transformation coefficients Cij. The coding is carried out iteratively by coding at each iteration one of the coefficients of the block with an additional bit as compared to the preceding iteration, and evaluating at each iteration the global error value made if the image block is reconstructed starting from the total number of bits till now given to the block. The iterations relating to a block start from the coding of all its coefficients with zero bits and terminate when said global error becomes lower than a pre- determined threshold error. A device is also described to implement the method (Figure 1).

    摘要翻译： 图像信号编码的方法，所述图像是细分成块序列中要被编码; 第一二维线性变换被应用到每个所述块，获得一组变换系数Cij的的。 编码被反复通过在每次迭代与附加比特的块的系数中的一个编码作为相比于preceding-迭代，并且在每次迭代进行的全局误差值评价如果图像块被重构从该总数开始开展 比特至今给该块。 迭代与一个blockStart从其所有系数的编码用零个比特和终止，当所述全局误差变得低于预定阈值误差较低。 因此，一个装置被描述以实现该方法。