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131. 发明申请

US20160316214A1 IMPROVED ENCODING PROCESS USING A PALETTE MODE 审中-公开
标题翻译：使用PALETTE模式改进编码过程
公开(公告)号：US20160316214A1
公开(公告)日：2016-10-27
申请号：US15105521
申请日：2014-12-18
申请人： CANON KABUSHIKI KAISHA
发明人： Christophe Gisquet , Patrice Onno , Guillaume Laroche
IPC分类号： H04N19/186 , G09G5/06 , H04N19/147 , H04N19/176 , H04N19/124
CPC分类号： H04N19/186 , G09G5/06 , G09G2320/106 , G09G2340/02 , H04N1/644 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/50 , H04N19/94
摘要： The present invention is related to video coding and decoding, in particular HEVC RExt that define a palette coding mode dedicated to the coding of screen contents. In improved palette coding modes according to the invention, when building a palette, each time a new pixel is added to the class a palette entry defines, the palette entry is modified to take the means value of the pixels belonging to such class. In other improved palette coding modes, a built palette is post-processed to substitute a palette entry with a close entry of a palette predictor PRED. In yet other embodiments, palette coding modes having different threshold values to drive the building of their respective palettes are successively tested to use the best one in terms of rate-distortion criterion.
摘要翻译：本发明涉及视频编码和解码，特别是定义专用于屏幕内容的编码的调色板编码模式的HEVC RExt。在根据本发明的改进的调色板编码模式中，当构建调色板时，每当一个调色板条目定义新像素被添加到该类中时，调色板条目被修改以获取属于这种类的像素的均值。在其他改进的调色板编码模式中，内置的调色板被后处理以用调色板预测器PRED的紧密条目代替调色板条目。在其他实施例中，连续测试具有不同阈值以驱动其各自调色板的构建的调色板编码模式，以便在速率失真准则方面使用最佳的调色板编码模式。

132. 发明申请

US20160100175A1 RESIDUAL COLOUR TRANSFORM SIGNALLED AT SEQUENCE LEVEL FOR SPECIFIC CODING MODES 审中-公开
标题翻译：用于特定编码模式的序列信号的残留色变换
公开(公告)号：US20160100175A1
公开(公告)日：2016-04-07
申请号：US14874066
申请日：2015-10-02
申请人： CANON KABUSHIKI KAISHA
发明人： Guillaume Laroche , Christophe Gisquet , Patrice Onno
IPC分类号： H04N19/186 , H04N19/60 , H04N19/147 , H04N19/176 , H04N19/182
CPC分类号： H04N19/147 , H04N19/103 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/192 , H04N19/60
摘要： The present invention is related to video coding and decoding, in particular HEVC RExt that define the adaptive residual colour transform, Adaptive RCT, of a residue of pixels. Compared to HEVC RExt where Adaptive RCT is signalled at Coding Unit level, embodiments of the invention propose to signal it in the bitstream in association with two or more coding units forming the image. In other words, it is signalled at a level higher than the CU level, for instance at sequence or frame or slice or tile or coding tree block level. In addition, various flags at this higher level make it possible to generically define the applying or not of RCT for various respective coding modes, for instance Inter coding mode, Intra Block Copy coding mode or Intra coding mode where Chroma and Luma modes are the same. Such approach makes it possible to reduce the amount of evaluations to be performed.
摘要翻译：本发明涉及视频编码和解码，特别是定义像素残差的自适应残差颜色变换自适应RCT的HEVC RExt。与以编码单元级别发信号通知自适应RCT的HEVC RExt相比，本发明的实施例提出了在与构成图像的两个或多个编码单元相关联的比特流中信号。换句话说，例如在序列或帧或片或块或编码树块级别，它被发送到高于CU级别的级别。另外，这个较高级别的各种标志使得可以对于各种各样的编码模式，例如帧间编码模式，帧内复制编码模式或内部编码模式（其中色度和亮度模式是相同的）来统一定义RCT的应用与否。这种方法使得可以减少要执行的评估量。

133. 发明申请

US20150334393A1 METHOD AND DEVICE FOR OPTIMIZING ENCODING/DECODING OF COMPENSATION OFFSETS FOR A SET OF RECONSTRUCTED SAMPLES OF AN IMAGE 审中-公开
标题翻译：用于优化一组重建图像补偿偏移编码/解码的方法和装置
公开(公告)号：US20150334393A1
公开(公告)日：2015-11-19
申请号：US14808753
申请日：2015-07-24
申请人： CANON KABUSHIKI KAISHA
发明人： Guillaume Laroche , Christophe Gisquet , Edouard Francois , Patrice Onno
IPC分类号： H04N19/117 , H04N19/82
CPC分类号： H04N19/85 , H04N19/117 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/44 , H04N19/80 , H04N19/82 , H04N19/86
摘要： The present invention provides a method and a device for coding and decoding at least a part of an image comprising a plurality of samples, each sample comprising at least two components, and the encoded image comprising at least one filtering parameter. The filtering comprises using at least one filtering parameter as a common filtering parameter for filtering both the first component and the second component of a reconstructed sample.
摘要翻译：本发明提供了一种用于对包括多个样本的图像的至少一部分进行编码和解码的方法和装置，每个样本包括至少两个分量，并且编码图像包括至少一个滤波参数。滤波包括使用至少一个滤波参数作为过滤重建样本的第一分量和第二分量的公共滤波参数。

134. 发明申请

US20140301489A1 METHOD, DEVICE AND PROGRAM FOR ENCODING AND DECODING A SEQUENCE OF IMAGES 审中-公开
标题翻译：用于编码和解码图像序列的方法，设备和程序
公开(公告)号：US20140301489A1
公开(公告)日：2014-10-09
申请号：US14356831
申请日：2012-11-07
申请人： CANON KABUSHIKI KAISHA
发明人： Guillaume Laroche , Christophe Gisquet , Edouard Francois , Patrice Onno
IPC分类号： H04N19/80
CPC分类号： H04N19/85 , H04N19/117 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/44 , H04N19/80 , H04N19/82 , H04N19/86
摘要： A method of encoding a sequence of images comprises performing area-by-area loop filtering on at least one image of the sequence and disabling such area-by-area loop filtering on at least one other image of the sequence. The images of the sequence are associated with respective levels from a plurality of levels, the levels corresponding to different respective rate-distortion balances or to different image qualities, and the images on which the area-by-area loop filtering is disabled are determined in dependence upon the levels.
摘要翻译：编码图像序列的方法包括对该序列的至少一个图像执行逐区循环滤波，并对该序列的至少一个其它图像禁用这种逐区域循环滤波。序列的图像与来自多个级别的相应级别相关联，级别对应于不同的相应的速率失真平衡或不同的图像质量，并且其上逐个区域环路滤波被禁用的图像在依赖于水平。

135. 发明申请

US20140092959A1 Method and device for deriving a set of enabled coding modes 有权
标题翻译：用于导出一组启用编码模式的方法和装置
公开(公告)号：US20140092959A1
公开(公告)日：2014-04-03
申请号：US14038493
申请日：2013-09-26
申请人： Canon Kabushiki Kaisha
发明人： Patrice Onno , Christophe GISQUET , Guillaume LAROCHE , Edouard FRANCOIS
IPC分类号： H04N7/26
CPC分类号： H04N19/10 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/30
摘要： A method for deriving a set of enabled coding modes relative to the encoding of an image or image portion which forms part of an image sequence. The method comprises: obtaining information associated with coding modes of one or more previously encoded images of the sequence, and selectively enabling for the current image or image portion, coding modes based on said obtained information.
摘要翻译：一种用于导出相对于形成图像序列的一部分的图像或图像部分的编码的一组使能编码模式的方法。该方法包括：获得与序列的一个或多个先前编码的图像的编码模式相关联的信息，并且基于所获得的信息选择性地启用当前图像或图像部分的编码模式。

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