公开(公告)号：US20160316213A1

公开(公告)日：2016-10-27

申请号：US15104654

申请日：2014-12-05

申请人： Wang-Lin LAI ,  Shan LIU ,  Tzu-Der CHUANG ,  Xiaozhong XU ,  Jing YE

发明人： Wang-Lin LAI ,  Shan LIU ,  Tzu-Der CHUANG ,  Xiaozhong XU ,  Jing YE

IPC分类号： H04N19/186 ,  H04N19/115 ,  H04N19/167 ,  H04N19/176

摘要： A method and apparatus for palette prediction and sharing according to the present invention are disclosed. A method incorporating an embodiment of the present invention determines one or more palette sharing flags for the current block. A set of current palettes corresponding to the set of color components is generated according to the palette sharing flags. If a first palette sharing flag is asserted, one or more current palettes indicated by the first palette sharing flag are copied entirely from one or more reference palettes of a set of reference palettes. If the first palette sharing flag is not asserted, one or more current palettes indicated by the first palette sharing flag are derived from a bitstream associated with the video data. Encoding or decoding is then applied to the current block according to the set of current palettes.

摘要翻译： 公开了一种根据本发明的调色板预测和共享的方法和装置。 结合本发明实施例的方法确定当前块的一个或多个调色板共享标志。 根据调色板共享标志生成与该组颜色分量对应的一组当前调色板。 如果第一调色板共享标志被断言，则由第一调色板共享标志指示的一个或多个当前调色板完全从一组参考调色板的一个或多个参考调色板复制。 如果第一调色板共享标志未被确认，则由与第一调色板共享标志指示的一个或多个当前调色板从与视频数据相关联的比特流导出。 然后根据当前调色板的集合将编码或解码应用于当前块。

公开(公告)号：US20170054996A1

公开(公告)日：2017-02-23

申请号：US15307445

申请日：2015-05-05

申请人： Xiaozhong XU ,  Shan LIU ,  Tzu-Der CHUANG

发明人： Xiaozhong XU ,  Shan LIU ,  Tzu-Der CHUANG

IPC分类号： H04N19/52 ,  H04N19/593

CPC分类号： H04N19/52 ,  H04N19/176 ,  H04N19/593

摘要： A method of block vector (BV) prediction for an IntraBC mode (Intra-block copy mode) coded block in a video coding system according to the present invention is disclosed. Multiple BV candidate lists are derived from neighboring blocks of the current block. A BV candidate list is selected as a BV predictor for the BV of the current block. The current block is coded based on an Intra reference block located according to the BV of the current block. In one embodiment, a left-bottom (LB) block of the current block is used to derive the first BV candidate list and an above-right (AR) block of the current block is used to derive the second BV candidate list. A 1-bit index code is signaled to select a BV predictor between the first BV candidate list and the second BV candidate list

摘要翻译： 公开了根据本发明的视频编码系统中的IntraBC模式（块内复制模式）编码块的块向量（BV）预测方法。 多个BV候选列表从当前块的相邻块导出。 选择BV候选列表作为当前块的BV的BV预测器。 基于根据当前块的BV定位的内部参考块对当前块进行编码。 在一个实施例中，使用当前块的左下（LB）块来导出第一BV候选列表，并且使用当前块的右上（AR）块来导出第二BV候选列表。 发信号通过1位索引码来选择第一BV候选列表和第二BV候选列表之间的BV预测器