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    ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND TRANSMISSION SYSTEM
    7.
    发明授权
    ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND TRANSMISSION SYSTEM 有权

    公开(公告)号：EP1901544B1

    公开(公告)日：2018-09-26

    申请号：EP06832832.7

    申请日：2006-11-17

    申请人： Sony Corporation

    发明人： FUKUHARA, Takahiro ,  HOSAKA, Kazuhisa ,  ANDO, Katsutoshi

    IPC分类号： H04N19/63 ,  H04N19/129 ,  H04N19/436

    CPC分类号： H04N19/436 ,  H04N19/129 ,  H04N19/13 ,  H04N19/61 ,  H04N19/63 ,  H04N19/647

    摘要： The present invention relates to an encoding device and method, a decoding device and method, and a transmission system, wherein image data which is subjected to compression encoding and sent out can be output as decoded images at the receiving side in a short time. At the time of wavelet transformation, filtering processing is performed in increments of lines, with a number of lines, whereby coefficient data for one line worth of lowest band component is generated, as an increment. At the first time, processing of line No. 1 through line No. 7 is processed, highband component coefficient C1, coefficient C2, and coefficient C3, and lowband component coefficient Ca, coefficient Cb, and coefficient Cc, are generated at division level = 1, and at division level = 2, highband component coefficient C4 and lowband component coefficient C5 are further generated from coefficient Ca, coefficient Cb, and coefficient Cc. These coefficients are rearranged in the order from lowband to highband, and supplied to a synthesizing filter. The synthesizing filer performs filtering processing of the coefficients in the order in which they were supplied, generates image data, and outputs.

    METHOD AND APPARATUS FOR BIT RATE CONTROL IN SCALABLE VIDEO SIGNAL ENCODING USING A RATE-DISTORTION OPTIMISATION
    9.
    发明授权
    METHOD AND APPARATUS FOR BIT RATE CONTROL IN SCALABLE VIDEO SIGNAL ENCODING USING A RATE-DISTORTION OPTIMISATION 有权
    使用速率失真优化的可扩展视频信号编码中的比特率控制的方法和设备

    公开(公告)号：EP1992169B1

    公开(公告)日：2018-05-16

    申请号：EP07704683.7

    申请日：2007-02-21

    申请人： Thomson Licensing

    发明人： ZHU, Li Hua ,  XU, Long ,  CHEN, Zhi Bo

    IPC分类号： H04N19/103 ,  H04N19/105 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/19 ,  H04N19/194 ,  H04N19/615 ,  H04N19/63

    CPC分类号： H04N19/615 ,  H04N19/103 ,  H04N19/105 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/19 ,  H04N19/194 ,  H04N19/30 ,  H04N19/63

    摘要： In many video encoding bit rate control models such as TMN8 and RHO domain, the distortion D has been described as a uniform weighted distortion. According to the invention an approximated but still easy-to-use Laplacian distribution model is calculated for the quantisation step size adaptation in the macroblock layer bit rate control. The inventive bit rate control uses a pre-analysis step (LPPREA, HPPREA) that calculates the standard deviation of the input signal amplitudes in each macroblock in a Group of Frames. Using the corresponding standard deviation value determined in the pre-analysis step, in a motion estimation/compensation step (CQPEMB) the best mode for the P and B pictures and the actual standard deviation of the prediction residual for the macroblocks are obtained, whereby a rate distortion optimisation processing using the Laplace distribution is performed. For I frames an intra prediction is carried out by which the best prediction mode and the actual standard deviation of the prediction residual for the macroblocks are obtained, and a rate distortion optimisation processing using the Laplace distribution is performed. Thereby for I and P frames the quantisation parameter for each macroblock is obtained and used in a corresponding quantisation that follows transform (TRF1) of the prediction or motion estimation/compensation residual. For the B frames the bit rate control is carried out once again in an actual coding step, i.e. the quantisation parameter for a current macroblock is computed with the inventive improved TMN8 bit rate control using the best mode and the actual standard deviation obtained from the ME/MC stage.

    APPARATUS FOR PARTITIONING COMPRESSED SATELLITE IMAGE AND METHOD THEREFOR
    10.
    发明授权
    APPARATUS FOR PARTITIONING COMPRESSED SATELLITE IMAGE AND METHOD THEREFOR 有权
    用于分割压缩卫星图像的装置及其方法

    公开(公告)号：EP2824919B1

    公开(公告)日：2018-04-04

    申请号：EP13757043.8

    申请日：2013-02-18

    申请人： G-Solution, Inc.

    发明人： KIM, Tae Hoon

    IPC分类号： H04N7/24 ,  H04B7/185 ,  G06F17/30 ,  H04N21/61 ,  H04L29/06 ,  H04N19/63

    CPC分类号： H04L69/22 ,  G06F17/3028 ,  H04B7/1851 ,  H04N19/63 ,  H04N19/65 ,  H04N21/6143

    摘要： Disclosed an apparatus and method of partitioning compressed satellite image, and more specifically, the present invention relates to a technique for forming index information on the compressed satellite image using the starting point and the length of a compressed section so as to randomly access each compressed section in the wavelet-based compressed satellite image recommended through CCSDS. The present invention minimizes costs for long-term storage of the satellite image data by immediately indexing, partitioning, and storing the compressed satellite data in a storage without recovering the compressed satellite data, rapidly provides high-quality satellite images for users by minimizing information loss while recovering the compressed image, and thereby being effective for being able to reduce computing resources needed to recover the compressed image data.