公开(公告)号：US08594200B2

公开(公告)日：2013-11-26

申请号：US12900269

申请日：2010-10-07

申请人： Yung-Chang Chang ,  Chih-Ming Wang ,  Kun-Bin Lee

发明人： Yung-Chang Chang ,  Chih-Ming Wang ,  Kun-Bin Lee

IPC分类号： H04N7/12

CPC分类号： H04N19/00684 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/70

摘要： A video decoding apparatus includes a bitstream parser, a calculator and a memory. The bitstream parser is provided to receive a video bitstream and extracting a set of constraints associated with the video bitstream, wherein the set of constraints has information associated with a direct_8×8_inference flag for a macroblock of a picture, wherein the macroblock has N sub-macroblock partitions. The calculator is provided to calculate first motion vector information associated with the macroblock and obtain second motion vector information associated with K of the N sub-macroblock partitions from the first motion vector information according to the information associated with the direct_8×8_inference flag, wherein K is less than N. The memory is provided to store the second motion vector information.

摘要翻译： 视频解码装置包括比特流解析器，计算器和存储器。 提供比特流解析器以接收视频比特流并提取与视频比特流相关联的一组约束，其中所述约束集具有与图像的宏块的direct_8×8_参考标志相关联的信息，其中，所述宏块具有N个子帧， 宏块分区。 提供计算器以计算与宏块相关联的第一运动矢量信息，并根据与direct_8×8_参考标志相关联的信息从第一运动矢量信息获得与N个子宏块分区的K相关联的第二运动矢量信息，其中K 小于N.存储器被提供以存储第二运动矢量信息。

公开(公告)号：US20130121410A1

公开(公告)日：2013-05-16

申请号：US13295956

申请日：2011-11-14

申请人： Yung-Chang Chang ,  Chi-Cheng Ju ,  Yi-Hau Chen ,  De-Yuan Shen

发明人： Yung-Chang Chang ,  Chi-Cheng Ju ,  Yi-Hau Chen ,  De-Yuan Shen

IPC分类号： H04N7/32

CPC分类号： H04N19/124 ,  H04N19/13 ,  H04N19/152 ,  H04N19/174 ,  H04N19/184 ,  H04N19/423 ,  H04N19/436 ,  H04N19/61 ,  H04N19/91

摘要： A method and apparatus for video encoding to generate a partitioned bitstream without buffering transform coefficient and/or prediction data for subsequent coding units are disclosed. An encoder incorporating an embodiment according to the present invention receives first video parameters associated with a current coding unit, wherein no first video parameters associated with subsequent coding units are buffered. The encoder then encodes the first video parameters to generate a current first compressed data corresponding to the current coding unit. A first memory address in the first logic unit is determined and the encoder provides the current first compressed data at the first memory address in the first logic unit.

摘要翻译： 公开了一种视频编码方法和装置，用于生成分段比特流而不缓冲用于后续编码单元的变换系数和/或预测数据。 结合根据本发明的实施例的编码器接收与当前编码单元相关联的第一视频参数，其中没有缓冲与后续编码单元相关联的第一视频参数。 然后，编码器对第一视频参数进行编码，以产生对应于当前编码单元的当前第一压缩数据。 确定第一逻辑单元中的第一存储器地址，并且编码器在第一逻辑单元中的第一存储器地址处提供当前的第一压缩数据。

公开(公告)号：US20100079315A1

公开(公告)日：2010-04-01

申请号：US12621708

申请日：2009-11-19

申请人： Yung-Chang Chang

发明人： Yung-Chang Chang

IPC分类号： H03M7/40

CPC分类号： H03M7/40 ,  H04N19/44 ,  H04N19/91

摘要： A decoder for decoding an input bit stream into a plurality of symbols is provided. The decoder includes an extractor, a length generator, a base selector, and a processing unit. The extractor receives the input bit stream and extracts a code with a predetermined codeword length therefrom. The length generator receives the extracted code and determines a first codeword length corresponding to a symbol according to the extracted code and a base table. The base selector determines a codeword base corresponding to the first codeword length according to the base table. The processing unit generates the symbol corresponding to the extracted code according to the codeword base, an offset table and the first codeword length.

摘要翻译： 提供了一种用于将输入比特流解码为多个符号的解码器。 解码器包括提取器，长度发生器，基本选择器和处理单元。 提取器接收输入比特流并从其中提取具有预定码字长度的码。 长度生成器接收所提取的代码，并根据提取的代码和基表确定与符号对应的第一码字长度。 基本选择器根据基表确定与第一码字长度对应的码字碱基。 处理单元根据码字碱基，偏移表和第一码字长度生成与提取的码对应的码元。

公开(公告)号：US20090251341A1

公开(公告)日：2009-10-08

申请号：US12098473

申请日：2008-04-07

申请人： Yung-Chang Chang

发明人： Yung-Chang Chang

IPC分类号： H03M7/40

CPC分类号： H03M7/40 ,  H04N19/44 ,  H04N19/91

摘要： A decoder for decoding an input bit stream into a plurality of symbols is provided. The decoder includes an extractor, a length generator, a base selector, and a processing unit. The extractor receives the input bit stream and extracts a code with a predetermined codeword length therefrom. The length generator receives the extracted code and determines a first codeword length corresponding to a symbol according to the extracted code and a base table. The base selector determines a codeword base corresponding to the first codeword length according to the base table. The processing unit generates the symbol corresponding to the extracted code according to the codeword base, an offset table and the first codeword length.

摘要翻译： 提供了一种用于将输入比特流解码为多个符号的解码器。 解码器包括提取器，长度发生器，基本选择器和处理单元。 提取器接收输入比特流并从其中提取具有预定码字长度的码。 长度生成器接收所提取的代码，并根据提取的代码和基表确定与符号对应的第一码字长度。 基本选择器根据基表确定与第一码字长度对应的码字碱基。 处理单元根据码字碱基，偏移表和第一码字长度生成与提取的码对应的码元。

公开(公告)号：US07592937B1

公开(公告)日：2009-09-22

申请号：US12131208

申请日：2008-06-02

申请人： Yung-Chang Chang

发明人： Yung-Chang Chang

IPC分类号： H03M7/00

CPC分类号： H03M7/4006

摘要： A context-based adaptive binary arithmetic coding (CABAC) method. The CABAC method for a bitstream comprises: detecting a control signal (Sig_first); decoding a first bin representing one of a first coefficient flag (Sig) and a second coefficient flag (Last) from the bitstream according to the control signal (Sig_first); decoding a second bin representing one of the second coefficient flag (Last) and a next first coefficient flag (Sig) from the bitstream according to the decoded first bin and the control signal (Sig_first); and updating the control signal (Sig_first) according to the decoded first and second bins. The first and second bins are decoded in one clock cycle, the first coefficient flag (Sig) indicates whether a corresponding coefficient value is zero, and the second coefficient flag (Last) indicates whether a coefficient map decoding process is finished.

摘要翻译： 基于上下文的自适应二进制算术编码（CABAC）方法。 用于比特流的CABAC方法包括：检测控制信号（Sig_first）; 根据控制信号（Sig_first）从比特流解码表示第一系数标志（Sig）和第二系数标志（Last）之一的第一bin; 根据解码的第一存储体和控制信号（Sig_first），从位流解码表示第二系数标志（Last）和下一个第一系数标志（Sig）之一的第二存储体; 以及根据解码的第一和第二分组来更新控制信号（Sig_first）。 在一个时钟周期中解码第一和第二分区，第一系数标志（Sig）表示对应的系数值是否为零，第二系数标志（Last）指示系数映射解码处理是否完成。

公开(公告)号：US20140226728A1

公开(公告)日：2014-08-14

申请号：US14343388

申请日：2012-09-12

申请人： Chia-Yun Cheng ,  Yung-Chang Chang

发明人： Chia-Yun Cheng ,  Yung-Chang Chang

IPC分类号： H04N19/423 ,  H04N19/44 ,  H04N19/91

CPC分类号： H04N19/91 ,  H04N19/172 ,  H04N19/174 ,  H04N19/423 ,  H04N19/44

摘要： A buffering apparatus for buffering context arrays of a multi-tile encoded picture having a plurality of tiles includes a first buffer and a second buffer. The first buffer is arranged to buffer a first context array referenced for performing entropy decoding upon a first tile of the multi-tile encoded picture. The second buffer is arranged to buffer a second context array referenced for performing entropy decoding upon a second tile of the multi-tile encoded picture. When the first tile is currently decoded according to the first context array buffered in the first buffer, the second context array is buffered in the second buffer.

摘要翻译： 用于缓冲具有多个瓦片的多瓦片编码图像的上下文阵列的缓冲装置包括第一缓冲器和第二缓冲器。 第一缓冲器被布置为缓冲被引用以在多瓦片编码图像的第一瓦片上执行熵解码的第一上下文阵列。 第二缓冲器被布置为缓冲在多瓦片编码图像的第二瓦片上执行熵解码所引用的第二上下文阵列。 当第一瓦片当前根据在第一缓冲器中缓冲的第一上下文阵列进行解码时，第二上下文阵列被缓冲在第二缓冲器中。

公开(公告)号：US20120155482A1

公开(公告)日：2012-06-21

申请号：US13103991

申请日：2011-05-09

申请人： Yung-Chang Chang ,  Shih-Yin Lin ,  Chung-Kai Liu

发明人： Yung-Chang Chang ,  Shih-Yin Lin ,  Chung-Kai Liu

IPC分类号： H04L12/56

CPC分类号： H04L49/109 ,  H04L49/557

摘要： A manycore networks-on-chip (NoC) formed by a plurality of clusters is provided. The manycore NoC includes redundant routers and connection channels therefore is fault-tolerant as long as the numbers of damaged routers and damaged connection channels are under predetermined thresholds. Moreover, the NoC can retain its original logical topology without isolating any core after resetting the connection channels in response to the damaged routers and connection channels.

摘要翻译： 提供了由多个集群形成的行星网络（NoC）。 manycore NoC包括冗余路由器，因此只要损坏的路由器和损坏的连接信道的数量都处于预定阈值，则容错。 此外，NoC可以在重置连接通道以响应损坏的路由器和连接通道之后，保留原有的逻辑拓扑，而不隔离任何内核。

公开(公告)号：US09838701B2

公开(公告)日：2017-12-05

申请号：US14235801

申请日：2011-08-03

申请人： Tsu-Ming Liu ,  Yung-Chang Chang ,  Chi-Cheng Ju

发明人： Tsu-Ming Liu ,  Yung-Chang Chang ,  Chi-Cheng Ju

IPC分类号： H04N19/31 ,  H04N19/423 ,  H04N19/426 ,  H04N19/44 ,  H04N19/593 ,  H04N19/33

CPC分类号： H04N19/31 ,  H04N19/33 ,  H04N19/423 ,  H04N19/426 ,  H04N19/44 ,  H04N19/593

摘要： One exemplary method for decoding a scalable video stream, including a base layer frame and at least an enhancement layer frame corresponding to the base layer frame, has the following steps: decoding the base layer frame; and before the base layer frame is fully decoded, decoding the enhancement layer frame. Another exemplary method for decoding a scalable video stream, including a base layer frame and at least an enhancement layer frame corresponding to the base layer frame, has the following steps: decoding the enhancement layer frame, and decoding the base layer frame; wherein a start point of decoding the enhancement layer frame is earlier than a start point of decoding the base layer frame.

公开(公告)号：US09538177B2

公开(公告)日：2017-01-03

申请号：US14343388

申请日：2012-09-12

申请人： Chia-Yun Cheng ,  Yung-Chang Chang

发明人： Chia-Yun Cheng ,  Yung-Chang Chang

IPC分类号： H04N19/00 ,  H04N19/174 ,  H04N19/423 ,  H04N19/44 ,  H04N19/91

CPC分类号： H04N19/91 ,  H04N19/172 ,  H04N19/174 ,  H04N19/423 ,  H04N19/44

摘要： A buffering apparatus for buffering context arrays of a multi-tile encoded picture having a plurality of tiles includes a first buffer and a second buffer. The first buffer is arranged to buffer a first context array referenced for performing entropy decoding upon a first tile of the multi-tile encoded picture. The second buffer is arranged to buffer a second context array referenced for performing entropy decoding upon a second tile of the multi-tile encoded picture. When the first tile is currently decoded according to the first context array buffered in the first buffer, the second context array is buffered in the second buffer.

摘要翻译： 用于缓冲具有多个瓦片的多瓦片编码图像的上下文阵列的缓冲装置包括第一缓冲器和第二缓冲器。 第一缓冲器被布置为缓冲被引用以在多瓦片编码图像的第一瓦片上执行熵解码的第一上下文阵列。 第二缓冲器被布置为缓冲在多瓦片编码图像的第二瓦片上执行熵解码所引用的第二上下文阵列。 当第一瓦片当前根据在第一缓冲器中缓冲的第一上下文阵列进行解码时，第二上下文阵列被缓冲在第二缓冲器中。

公开(公告)号：US08675738B2

公开(公告)日：2014-03-18

申请号：US12186541

申请日：2008-08-06

申请人： Yung-Chang Chang ,  Chia-Yun Cheng ,  Chi-Cheng Ju

发明人： Yung-Chang Chang ,  Chia-Yun Cheng ,  Chi-Cheng Ju

IPC分类号： H04N7/12

CPC分类号： H04N19/00533 ,  H04N19/423 ,  H04N19/433 ,  H04N19/44 ,  H04N19/577 ,  H04N19/59

摘要： A video decoding method for decoding a bit stream to a plurality of frames, includes: determining whether a size of a current picture is equal to that of a next picture according to the bit stream; scaling a corresponding reference frame for the next picture to generate a scaled frame when the size of the current picture is not equal to that of the next picture; and storing the scaled frame in a first frame buffer of a storage unit, wherein at least a portion of a first frame originally stored in the first frame buffer is displayed.

摘要翻译： 一种用于将比特流解码为多个帧的视频解码方法，包括：根据比特流确定当前图像的大小是否等于下一个图像的大小; 当当前图像的大小不等于下一图像的大小时，缩放下一图像的对应参考帧以产生缩放帧; 以及将缩放的帧存储在存储单元的第一帧缓冲器中，其中显示原始存储在第一帧缓冲器中的第一帧的至少一部分。