公开(公告)号：US20090110072A1

公开(公告)日：2009-04-30

申请号：US12341223

申请日：2008-12-22

申请人： Shinya KADONO ,  Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen

发明人： Shinya KADONO ,  Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/51 ,  H04N19/105 ,  H04N19/114 ,  H04N19/119 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/31 ,  H04N19/503 ,  H04N19/577

摘要： A moving picture prediction method for enabling a calculation amount and a storage capacity to be reduced in a prediction about a moving picture by scaling processing is provided. A method for predicting the value P of Time T from the value P0 of Time T0 and the value P1 of Time T1 includes a step of judging whether it is possible to generate a predictive value with a predetermined significant number of bits by scaling using Time T0, T1 and T (Step S90); a step of predicting the value P from the values P0 and P1 by scaling using Time T0, T1 and T when it is possible to generate a predictive value with the predetermined significant number of bits (Step S92); and a step of predicting the value P from the values P0 and P1 without using Time T0, T1 and T when it is impossible to generate a predictive value with the predetermined significant number of bits (Step S91).

摘要翻译： 提供一种运动图像预测方法，用于通过缩放处理使关于运动图像的预测中的计算量和存储容量减小。 从时间T0的值P0和时间T1的值P1预测时间T的值P的方法包括以下步骤：通过使用时间T0进行缩放来判断是否可以通过缩放生成具有预定有效位数的预测值 ，T1和T（步骤S90）; 当可以产生具有预定有效位数的预测值时，通过使用时间T0，T1和T的缩放来从值P0和P1中预测值P的步骤（步骤S92）。 以及当不可能用预定的有效位数生成预测值时，不使用时间T0，T1和T，从值P0和P1预测值P的步骤（步骤S91）。

公开(公告)号：US20080291998A1

公开(公告)日：2008-11-27

申请号：US12027404

申请日：2008-02-07

申请人： Chong Soon LIM ,  Viktor Wahadaniah ,  Teo Han Boon ,  Youji Shibahara ,  Takahiro Nishi ,  Toshiyasu Sugio ,  Kazuya Takagi

发明人： Chong Soon LIM ,  Viktor Wahadaniah ,  Teo Han Boon ,  Youji Shibahara ,  Takahiro Nishi ,  Toshiyasu Sugio ,  Kazuya Takagi

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/159 ,  H04N19/16 ,  H04N19/177 ,  H04N19/19 ,  H04N19/51 ,  H04N19/567

摘要： The video coding apparatus of the present invention for reducing pulsing artifacts includes: a correlation calculation unit which calculates a correlation value indicating a correlation degree of correlation between: a first block; and a second block or a third block. The first block including pixels included in a first original picture in an original picture sequence of original pictures, the second block including pixels included in a second original picture which precedes the first original picture, and the third block being obtained by coding and reconstructing the second block. The video coding apparatus includes a correlation judgment unit which judges whether the correlation value exceeds a first threshold, and judge that the correlation is high when the correlation value exceeds the first threshold; and a blending unit which blends the first block and the third block when the correlation judgment unit judges that the correlation is high.

摘要翻译： 本发明的用于减少脉冲伪影的视频编码装置包括：相关计算单元，计算表示第一块的相关度的相关值的相关值; 和第二块或第三块。 第一块包括原始图像的原始图像序列中包括在第一原始图像中的像素，第二块包括包括在第一原始图像之前的像素，并且第三块是通过对第二原始​​图像进行编码和重建而获得的 块。 视频编码装置包括：相关判断单元，其判断相关值是否超过第一阈值，并且当相关值超过第一阈值时判断相关性高; 以及混合单元，其在相关判断单元判断相关性高时，混合第一块和第三块。

公开(公告)号：US20070115156A1

公开(公告)日：2007-05-24

申请号：US11627099

申请日：2007-01-25

申请人： Chong Soon LIM ,  Sheng Mei SHEN ,  Shinya KADONO

发明人： Chong Soon LIM ,  Sheng Mei SHEN ,  Shinya KADONO

IPC分类号： H03M7/40

CPC分类号： H03M7/425 ,  H04N19/30 ,  H04N19/61 ,  H04N19/93

摘要： A decoding method according to the present invention is a method of decoding a variable length code to a Run symbol and a Level symbol. The Run symbol indicates the number of consecutive coefficients each having a value of zero. The Level symbol indicates a value of a non-zero coefficient following the Run symbol. The decoding method includes decoding a variable length code to a code number, determining whether the code number obtained in the decoding belongs to a first range or a predetermined range, decoding the code number to a Run symbol and a Level symbol by referring to a table, when it is determined that the code number belongs to the first range, and decoding the code number to a Level symbol and then decoding a variable length code following the decoded variable length code to a Run symbol, without referring to the table, when it is determined that the code number belongs to the predetermined range.

摘要翻译： 根据本发明的解码方法是将可变长度码解码为运行符号和电平符号的方法。 运行符号表示每个具有零值的连续系数的数量。 电平符号表示运行符号之后的非零系数的值。 解码方法包括将可变长度码解码为码数，确定在解码中获得的码号是否属于第一范围或预定范围，通过参考表格将码号解码为运行符号和电平符号 当确定代码号码属于第一范围时，并且将代码号解码为电平符号，然后将解码的可变长度代码之后的可变长度代码解码为运行符号，而不参考该表，何时 确定代码号属于预定范围。

公开(公告)号：US09894353B2

公开(公告)日：2018-02-13

申请号：US14125753

申请日：2012-06-12

申请人： Jin Li ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Jin Li ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N19/129 ,  H04N19/124 ,  H04N19/159 ,  H04N19/11 ,  H04N19/126 ,  H04N19/157 ,  H04N19/176 ,  H04N19/625

CPC分类号： H04N19/157 ,  H04N19/11 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/625

摘要： A method of encoding video using intra prediction mode dependent quantization matrix includes: calculating an array of quantizers for each size of block unit (100); encoding the arrays of quantizers into header of compressed video stream (102); selecting one scanning order based on a selected intra prediction mode among a plurality of scanning orders (112); scanning the array of quantizers to obtain a block of quantizers based on the selected scanning order (114).

公开(公告)号：US09826230B2

公开(公告)日：2017-11-21

申请号：US13400896

申请日：2012-02-21

申请人： Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

发明人： Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/82 ,  H04N19/593 ,  H04N19/117 ,  H04N19/157 ,  H04N19/86 ,  H04N19/176

CPC分类号： H04N19/176 ,  H04N19/117 ,  H04N19/157 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

摘要： A filtering method according to the present invention is for filtering a plurality of blocks included in an image, and comprises: determining whether each of the blocks is an IPCM block or not; filtering a non-IPCM block that is not an IPCM block among the blocks to generate filtered data; outputting the filtered data as pixel values of the non-IPCM block, and outputting pixel values of the unfiltered IPCM block as pixel values of the IPCM block.

公开(公告)号：US09467710B2

公开(公告)日：2016-10-11

申请号：US13502592

申请日：2010-10-29

申请人： Chong Soon Lim ,  Min Li ,  Hai Wei Sun ,  Youji Shibahara ,  Takahiro Nishi

发明人： Chong Soon Lim ,  Min Li ,  Hai Wei Sun ,  Youji Shibahara ,  Takahiro Nishi

IPC分类号： H04N19/44 ,  H04N19/61 ,  H04N19/126 ,  H04N19/176 ,  H04N19/463

CPC分类号： H04N19/44 ,  H04N19/126 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61

摘要： An image decoding method including: obtaining an old quantization scaling matrix which is a decoded quantization scaling matrix and is used for decoding a new quantization scaling matrix; obtaining, from the coded stream, an update parameter indicating an amount of change in the new quantization scaling matrix with respect to the old quantization scaling matrix; decoding the new quantization scaling matrix using the old quantization scaling matrix obtained in the obtaining of an old quantization scaling matrix and the update parameter obtained in the obtaining of an update parameter; and decoding the coded image using the new quantization scaling matrix decoded in the decoding of the new quantization scaling matrix.

摘要翻译： 一种图像解码方法，包括：获得作为解码的量化缩放矩阵的旧的量化缩放矩阵，并用于解码新的量化缩放矩阵; 从编码流中获取指示相对于旧的量化缩放矩阵的新量化缩放矩阵的变化量的更新参数; 使用在获得旧的量化缩放矩阵中获得的旧的量化缩放矩阵和在获得更新参数中获得的更新参数来解码新的量化缩放矩阵; 以及使用在新的量化缩放矩阵的解码中解码的新的量化缩放矩阵来解码编码图像。

公开(公告)号：US09438906B2

公开(公告)日：2016-09-06

申请号：US13810540

申请日：2012-03-02

申请人： Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio

发明人： Chong Soon Lim ,  Viktor Wahadaniah ,  Sue Mon Thet Naing ,  Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio

IPC分类号： H04N7/26 ,  H04N19/50 ,  H04N19/176 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/126 ,  H04N19/157

CPC分类号： H04N19/159 ,  H04N19/126 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61

摘要： A method of encoding an image into a coded image, the method comprising: writing a quantization offset parameter into the coded image, determining a prediction mode type for coding a block of image samples of the image into a coding unit of the coded image, determining a quantization parameter for the block of image samples, and determining if the prediction mode type is of a predetermined type, wherein if the prediction mode type is of the predetermined type, the method further comprises: modifying the determined quantization parameter using the quantization offset parameter, and performing a quantization process for the block of image samples using the modified quantization parameter, and wherein if the prediction mode type is not of the predetermined type, the method further comprises: performing a quantization process for the block of image samples using the determined quantization parameter.

摘要翻译： 一种将图像编码为编码图像的方法，所述方法包括：将量化偏移参数写入编码图像，确定用于将图像的图像样本块编码为编码图像的编码单元的预测模式类型，确定 用于所述图像样本块的量化参数，以及确定所述预测模式类型是否是预定类型，其中如果所述预测模式类型是所述预定类型，则所述方法还包括：使用所述量化偏移参数来修改所确定的量化参数 并且使用所述修改的量化参数对所述图像样本块执行量化处理，并且其中如果所述预测模式类型不是所述预定类型，则所述方法还包括：使用所确定的所述尺寸对所述图像样本块执行量化处理 量化参数。

公开(公告)号：US09154788B2

公开(公告)日：2015-10-06

申请号：US13817004

申请日：2012-05-31

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Jin Li ,  Haiwei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Kyoko Tanikawa ,  Toshiyasu Sugio ,  Toru Matsunobu

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Jin Li ,  Haiwei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Kyoko Tanikawa ,  Toshiyasu Sugio ,  Toru Matsunobu

IPC分类号： H04N7/12 ,  H04N19/50 ,  H04N19/176 ,  H04N19/102 ,  H04N19/593 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/182 ,  H04N19/59

CPC分类号： H04N19/50 ,  H04N19/102 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

摘要： An image coding method includes obtaining image format information, determining a subsampling method for a luminance signal, storing the subsampling method in a memory, obtaining the subsampling method from the memory, performing subsampling on a luminance signal of a surrounding pixel, calculating a parameter of the linear model using (i) the luminance signal that is subsampled and (ii) chrominance of the surrounding pixel, performing subsampling on the luminance signal of the current block to be coded, and calculating prediction chrominance of the current block to be coded using (i) the parameter of the linear model and (ii) the luminance signal that is subsampled.

摘要翻译： 图像编码方法包括获得图像格式信息，确定用于亮度信号的子采样方法，将二次采样方法存储在存储器中，从存储器获取二次采样方法，对周围像素的亮度信号进行二次采样，计算参数 所述线性模型使用（i）被二次采样的亮度信号和（ii）周围像素的色度，对要编码的当前块的亮度信号执行子采样，以及使用（ i）线性模型的参数和（ii）被二次采样的亮度信号。

公开(公告)号：US08687694B2

公开(公告)日：2014-04-01

申请号：US12089126

申请日：2006-10-02

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Youji Shibahara ,  Shinya Kadono

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Youji Shibahara ,  Shinya Kadono

IPC分类号： H04N7/26

CPC分类号： H04N19/577 ,  H04N19/107 ,  H04N19/109 ,  H04N19/137 ,  H04N19/16 ,  H04N19/51 ,  H04N19/573

摘要： The reference picture selection method according to the present invention is a method for selecting a reference picture for a current bottom field, and includes: predicting a degree of a motion of the current bottom field using a specific field which precedes the current bottom field in coding order; setting reference picture candidates suitable for coding the current bottom field based on the predicted degree of motion; and selecting a reference picture of the current bottom field among the set reference picture candidates.

摘要翻译： 根据本发明的参考图像选择方法是用于选择当前底场的参考图像的方法，并且包括：使用在编码中的当前底部场之前的特定场来预测当前底场的运动程度 订购; 基于预测的运动程度设置适合于编码当前底部场景的参考图像候选; 以及在所设置的参考图像候选中选择当前底部场的参考图像。

公开(公告)号：US20120230393A1

公开(公告)日：2012-09-13

申请号：US13413947

申请日：2012-03-07

申请人： Sue Mon Thet NAING ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

发明人： Sue Mon Thet NAING ,  Chong Soon Lim ,  Viktor Wahadaniah ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio

IPC分类号： H04N7/34

CPC分类号： H04N19/117 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61 ,  H04N19/82

摘要： Recent video coding schemes support different size of interpolation filter length for interpolation process. However, the schemes are using fixed, one sized interpolation filter length for all different size of picture resolutions and all different size of inter predicted units, leading to undesired large memory bandwidth usage. Especially for large spatial resolution images or large prediction blocks, the required memory bandwidth is substantially increased by using fixed interpolation filter length. The current invention provides methods and apparatuses for selecting the different interpolation filter coefficients adaptively based on a pre-determined interpolation filter length selection scheme. The benefit of the current invention is in the form of saving memory bandwidth usage.

摘要翻译： 最近的视频编码方案支持插值过程的插值滤波器长度不同的大小。 然而，这些方案对于所有不同大小的图像分辨率和所有不同大小的帧间预测单元使用固定的一个尺寸的内插滤波器长度，导致不期望的大的存储器带宽使用。 特别是对于大的空间分辨率图像或大的预测块，通过使用固定的内插滤波器长度，所需的存储器带宽显着增加。 本发明提供了用于基于预定的内插滤波器长度选择方案自适应地选择不同内插滤波器系数的方法和装置。 本发明的优点在于节省存储器带宽使用的形式。