Coding distortion removal method, video encoding method, video decoding method, and apparatus and program for the same
    10.
    发明授权
    Coding distortion removal method, video encoding method, video decoding method, and apparatus and program for the same 有权
    编码失真去除方法,视频编码方法,视频解码方法,以及相同的装置和程序

    公开(公告)号:US07899123B2

    公开(公告)日:2011-03-01

    申请号:US11928468

    申请日:2007-10-30

    IPC分类号: H04N7/12

    摘要: An LSI device for decoding a coded image segmented and coded in a plurality of blocks. The LSI device includes a section which receives a filter selection parameter that determines a threshold value for each quantization parameter, for changing between conducting and non-conducting a coding distortion removal by the use of a filter. A decoder, decodes a coded block to obtain a reproduced image. A remover, removes a coding distortion from a region including both sides of a block boundary between adjacent decoded blocks that form the reproduced image, in accordance with a comparison of a difference value of the pixels in adjacent decoded blocks with the threshold value determined based on the filter selection parameter, such that the coding distortion removal is not conducted when the difference value is greater than the threshold value. The coding distortion removal is conducted by the use of the filter when the difference value is smaller than the threshold value.

    摘要翻译: 一种用于对在多个块中分段编码的编码图像进行解码的LSI装置。 该LSI装置包括接收滤波器选择参数的部分,该滤波器选择参数确定每个量化参数的阈值,以便通过使用滤波器来改变导通和不导通的编码失真去除。 解码器解码编码块以获得再现的图像。 根据将相邻解码块中的像素的差值与基于相邻的解码块确定的阈值的比较,去除器从包括形成再现图像的相邻解码块之间的块边界的两侧的区域中去除编码失真 滤波器选择参数,使得当差值大于阈值时不进行编码失真去除。 当差值小于阈值时,通过使用滤波器来进行编码失真去除。