公开(公告)号：US20150201194A1

公开(公告)日：2015-07-16

申请号：US14662690

申请日：2015-03-19

申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

发明人： Zhong XUE ,  Sheng Mei SHEN ,  Teck Wee FOO ,  Chak Joo LEE ,  Shinya KADONO

IPC分类号： H04N19/117 ,  G06T5/00 ,  H04N19/137 ,  H04N19/136 ,  H04N19/124 ,  H04N19/44

摘要： An image coding and decoding system is provided that includes an image coding apparatus and an image decoding apparatus. The image coding apparatus includes a coding unit that codes an input image to obtain a first coded image, a first decoding unit that decodes the first coded image to obtain a reconstructed image, and a determining unit that determines a first filter setting parameter for the input image, a first comparing unit that compares a difference of pixel values with the threshold value, and a first removing unit that removes a coding. The image decoding apparatus includes an obtaining unit that obtains a second filter setting parameter, a second decoding unit that decodes the coded image to obtain a reconstructed image, a second comparing unit that compares a difference of pixel values with the threshold value, and a second removing unit that removes a coding distortion.

摘要翻译： 提供一种包括图像编码装置和图像解码装置的图像编码和解码系统。 该图像编码装置包括对输入图像进行编码以获得第一编码图像的编码单元，对第一编码图像进行解码以获得重构图像的第一解码单元，以及确定单元，其确定输入的第一滤波器设置参数 图像，比较像素值与阈值的差的第一比较单元和去除编码的第一去除单元。 图像解码装置包括获取单元，获得第二滤波器设定参数，第二解码单元，对编码图像进行解码以获得重构图像;第二比较单元，其将像素值的差异与阈值进行比较;第二比较单元， 去除单元，消除编码失真。

公开(公告)号：US20150195535A1

公开(公告)日：2015-07-09

申请号：US14662715

申请日：2015-03-19

申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

发明人： Zhong XUE ,  Sheng Mei SHEN ,  Teck Wee FOO ,  Chak Joo LEE ,  Shinya KADONO

IPC分类号： H04N19/117 ,  H04N19/124 ,  G06T5/00 ,  H04N19/136 ,  H04N19/137

摘要： A coding distortion removing method is provided for removing coding distortion in two adjacent blocks located on both sides of a block boundary between the two adjacent blocks in a reconstructed image. The method includes deriving a difference of pixel values between a pixel in a first block of the reconstructed image and a pixel in a second block of the reconstructed image adjacent to the first block, deriving an average value of the first quantization parameter and the second quantization parameter, and setting a threshold value to the average value of the first quantization parameter and the second quantization parameter. The method also includes comparing the difference of pixel values with the threshold value, and removing a coding distortion in an area disposed on both sides of the block boundary between the first block and the second block, by applying a filter for coding distortion removal.

摘要翻译： 提供一种编码失真消除方法，用于消除位于重建图像中两个相邻块之间的块边界两侧的两个相邻块中的编码失真。 该方法包括导出重建图像的第一块中的像素与邻近于第一块的重建图像的第二块中的像素之间的像素值的差异，导出第一量化参数和第二量化的平均值 参数，并将阈值设定为第一量化参数和第二量化参数的平均值。 该方法还包括通过应用用于编码失真去除的滤波器来比较像素值与阈值的差异，以及去除设置在第一块和第二块之间的块边界两侧的区域中的编码失真。

公开(公告)号：US20150195579A1

公开(公告)日：2015-07-09

申请号：US14662737

申请日：2015-03-19

申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

发明人： Zhong XUE ,  Sheng Mei SHEN ,  Teck Wee FOO ,  Chak Joo LEE ,  Shinya KADONO

IPC分类号： H04N19/86 ,  H04N19/182 ,  H04N19/124

摘要： An image decoding apparatus is provided that decodes a coded image, the coded image being generated by coding an image segmented into a plurality of blocks on a block basis. The image decoding apparatus includes a quantization parameter obtaining unit that obtains a quantization parameter for each block of the plurality of blocks, a decoding unit that decodes the coded image to obtain a reconstructed image, and a pixel difference value obtaining unit that obtains a pixel difference value. The image decoding apparatus also includes a comparing unit that compares the pixel difference value with a threshold value, and a removing unit that removes a coding distortion in an area disposed on both sides of a block boundary between the first block and the second block, by applying a filter for coding distortion removal.

摘要翻译： 提供一种图像解码装置，其对编码图像进行解码，所述编码图像是通过以块为基础对分割成多个块的图像进行编码而生成的。 图像解码装置包括获取多个块中的每个块的量化参数的量化参数获取单元，对编码图像进行解码以获得重构图像的解码单元和获得像素差异的像素差值获取单元 值。 图像解码装置还包括将像素差值与阈值进行比较的比较单元，以及去除第一块和第二块之间的块边界两侧的区域中的编码失真的去除单元，通过 应用滤波器进行编码失真去除。