公开(公告)号：US09602841B2

公开(公告)日：2017-03-21

申请号：US13663707

申请日：2012-10-30

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Manu Mathew ,  Mullangi Venkata Ratna Reddy

IPC分类号： H04N19/88 ,  H04N19/30

CPC分类号： H04N19/88 ,  H04N19/30

摘要： A system and method for decoding video encoded using scalable video coding. In one embodiment, a decoder for scalable video coding (SVC) includes an SVC access unit analyzer and decoding logic. The SVC access unit analyzer is configured to examine an SVC access unit prior to layered decoding of the access unit, to determine, based on the examination, what operations the access unit specifies for each layer of the decoding, and to determine, based on the determined operations to be performed for each layer of the decoding, what data to store for use by a subsequent layer of the decoding. The decoding logic is configured to decode the access unit via a plurality of decoding layers; and to store at each decoding layer, for use by a subsequent decoding layer, the data determined by the SVC access unit analyzer to be used by the subsequent decoding layer.

公开(公告)号：US20170026659A1

公开(公告)日：2017-01-26

申请号：US15289092

申请日：2016-10-07

申请人： MediaTek Inc.

发明人： Hung-Chih Lin ,  Shen-Kai Chang ,  Chao-Chih Huang

IPC分类号： H04N19/44 ,  H04N19/172 ,  H04N19/136

CPC分类号： H04N19/597 ,  H04N19/426 ,  H04N19/88

摘要： Apparatus and methods are disclosed for partially decoding video frames when a sub-region of the video is selected for viewing. The method identifies and decodes data units and pixel blocks of video frames needed to display the sub-region while bypassing data units and pixel blocks that are identified as unnecessary for displaying the sub-region. A video encoder receives a video frame comprising a plurality of cubic surfaces in a first configuration corresponding to a full sized 360VR image. Each cubic surface corresponds to a different surface of a cube. The encoder reformats the received video frame by rearranging the plurality of cubic surfaces according to a second configuration that is different than the first configuration. The second configuration re-arranges the six surfaces of a cubic 360VR image in order to fully utilize the line buffer and allow the line buffer to be narrower than the full sized 360VR image.

摘要翻译： 公开了当视频的子区域被选择用于观看时部分地解码视频帧的装置和方法。 该方法识别和解码显示子区域所需的视频帧的数据单元和像素块，同时绕过被识别为不必要显示子区域的数据单元和像素块。 视频编码器以对应于全尺寸360VR图像的第一配置接收包括多个立方体表面的视频帧。 每个立方体表面对应于立方体的不同表面。 编码器通过根据与第一配置不同的第二配置来重排多个立方体表面来重新格式化接收到的视频帧。 第二种配置重新排列立方360VR图像的六个表面，以便充分利用行缓冲区，并允许行缓冲区比全尺寸360VR图像更窄。

公开(公告)号：US20170019686A1

公开(公告)日：2017-01-19

申请号：US15209765

申请日：2016-07-14

申请人： MEDIATEK INC.

发明人： Min-Hao Chiu ,  Yu-Chuan Wang ,  Yung-Chang Chang

IPC分类号： H04N19/60 ,  H04N19/124 ,  H04N19/176 ,  H04N19/44

CPC分类号： H04N19/60 ,  H04N19/12 ,  H04N19/547 ,  H04N19/62 ,  H04N19/88

摘要： A partial decoding circuit with inverse second transform has a transpose buffer, a first-direction inverse residual transform circuit, and a second-direction inverse residual transform circuit. The transpose buffer stores an intermediate inverse residual transform result. The first-direction inverse residual transform circuit processes an inverse quantization output to generate the intermediate inverse residual transform result to the transpose buffer. The second-direction inverse residual transform circuit accesses the transpose buffer to retrieve the intermediate inverse residual transform result, and processes the intermediate inverse residual transform result to generate a final inverse residual transform result, where the final inverse residual transform result of the inverse second transform is further processed by an inverse transform circuit. The first-direction inverse residual transform circuit and the second-direction inverse residual transform circuit process partial residual transform data of different process units in a parallel processing manner.

摘要翻译： 具有逆第二变换的部分解码电路具有转置缓冲器，第一方向逆残差变换电路和第二方向逆残差变换电路。 转置缓冲器存储中间逆残差变换结果。 第一方向逆残差变换电路处理逆量化输出以产生到转置缓冲器的中间逆残差变换结果。 第二方向逆残差变换电路访问转置缓冲器以检索中间逆残差变换结果，并处理中间逆残差变换结果以产生最终逆残差变换结果，其中反向第二变换的最终逆残差变换结果 被逆变换电路进一步处理。 第一方向逆残差变换电路和第二方向逆残差变换电路以并行处理方式处理不同处理单元的部分残差变换数据。

公开(公告)号：US09509989B2

公开(公告)日：2016-11-29

申请号：US14234151

申请日：2012-08-02

申请人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

发明人： Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC分类号： H04N19/10 ,  H04N19/21 ,  H04N19/60 ,  H04N19/70 ,  H03M7/40 ,  H04N19/88 ,  H04N19/436 ,  H04N19/91

CPC分类号： H03M7/4018 ,  H04N19/159 ,  H04N19/21 ,  H04N19/436 ,  H04N19/70 ,  H04N19/88 ,  H04N19/91

摘要： A method and apparatus of context-based adaptive binary arithmetic encoding/decoding for syntax elements of one or more blocks are disclosed. According to one embodiment of the present invention, the binarization results of the x and y positions of the last significant coefficient of a transform unit are reordered by collecting the bypass bins together. According to another embodiment of the present invention, binarization results of syntax elements from two or more of four Intra N×N prediction units, including prev_intra_luma_pred_flag, rem_intra_luma_pred_mode, and mpm_idx are reordered by collecting the bypass bins together. In yet another embodiment according to the present invention, the binarization results of other syntax elements are also reordered by collecting bypass bins together. Furthermore, the above reordering of binarization results may be used for binarization results corresponding to a block and its neighboring blocks.

摘要翻译： 公开了用于一个或多个块的语法元素的基于上下文的自适应二进制算术编码/解码的方法和装置。 根据本发明的一个实施例，变换单元的最后一个有效系数的x和y位置的二值化结果通过将旁路箱收集在一起来重新排序。 根据本发明的另一实施例，通过将旁路箱收集在一起来重新排序，包括prev_intra_luma_pred_flag，rem_intra_luma_pred_mode和mpm_idx的四个内部N×N个预测单元中的两个或更多个的语法元素的二值化结果。 在根据本发明的另一个实施例中，其他语法元素的二值化结果也通过将旁路容器收集在一起来重新排序。 此外，二值化结果的上述重新排序可以用于对应于块及其相邻块的二值化结果。

公开(公告)号：US20160219250A1

公开(公告)日：2016-07-28

申请号：US15089649

申请日：2016-04-04

申请人： Cisco Technology, Inc.

发明人： Paul G. Bright-Thomas

IPC分类号： H04N7/15 ,  H04N19/40

CPC分类号： H04N7/152 ,  H04N19/00 ,  H04N19/40 ,  H04N19/59 ,  H04N19/88

摘要： Techniques for video conferencing include receiving a stream of video slices from a participant, designating the video slices as a primary sub-picture of a frame of video, encoding, with a first encoder, a first secondary sub-picture of the frame of video to obtain an encoded first secondary sub-picture of a frame of video, encoding, with a second encoder, a second secondary sub-picture of the frame of video to obtain an encoded first secondary sub-picture of a frame of video, combining the primary sub-picture with the encoded first secondary sub-picture to obtain a first video stream, combining the primary sub-picture with the encoded second secondary sub-picture to obtain a second video stream, and transmitting the first and second video streams to respective recipients.

摘要翻译： 用于视频会议的技术包括从参与者接收视频片段流，将视频片段指定为视频帧的主要子画面，使用第一编码器编码，将视频帧的第一辅助子画面编码为 获取视频帧的编码的第一辅助子图像，用第二编码器对视频帧的第二辅助子图像进行编码，以获得视频帧的编码的第一辅助子图像，组合主视频 具有编码的第一副副图像以获得第一视频流，将主子画面与编码的第二辅助子画面组合以获得第二视频流，以及将第一和第二视频流发送到各个接收者 。

公开(公告)号：US20160219243A1

公开(公告)日：2016-07-28

申请号：US14834661

申请日：2015-08-25

申请人： Valens Semiconductor Ltd.

发明人： Eyran Lida

IPC分类号： H04N5/44 ,  H04N19/186 ,  H04N19/30

CPC分类号： H04N21/64769 ,  H04N5/44 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0125 ,  H04N19/186 ,  H04N19/30 ,  H04N19/42 ,  H04N19/88 ,  H04N21/234309 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/2407 ,  H04N21/242 ,  H04N21/64738

摘要： Methods and systems for compression that maintains parameters related to uncompressed video (PRTUV) while changing video compression ratios on-the-fly. One embodiment of a system includes: A video transmitter that receives incoming high-definition uncompressed video (HD-UV) characterized by certain PRTUV. The video transmitter compresses the incoming HD-UV into a first compressed video of ratio between 1:1 and 5:1, and sends it over a communication link to a receiver that decompresses the video to an outgoing HD-UV. When the video transmitter receives a command to smoothly change on-the-fly the compression to a second compressed video of ratio between 2:1 and 10:1, it makes the change without interrupting the continuous flow of the incoming HD-UV. Wherein the outgoing HD-UV maintains the PRTUV before, during, and after the change from the first compressed video to the second compressed video.

摘要翻译： 用于在即时更改视频压缩比的同时保持与未压缩视频（PRTUV）相关的参数的压缩方法和系统。 系统的一个实施例包括：视频发射器，其接收以特定PRTUV为特征的进入的高清晰度未压缩视频（HD-UV）。 视频发射机将输入的HD-UV压缩成1：1和5：1之间的比例的第一个压缩视频，并通过通信链路将其发送到将视频解压缩到输出HD-UV的接收机。 当视频发射机接收到一个命令以便将压缩顺利地改变为比例在2：1和10：1之间的第二个压缩视频时，可以进行更改，而不会中断输入的HD-UV的连续流。 其中输出的HD-UV在从第一压缩视频到第二压缩视频的改变之前，之中和之后维持PRTUV。

公开(公告)号：US09373176B2

公开(公告)日：2016-06-21

申请号：US14754701

申请日：2015-06-30

申请人： MEDIATEK INC.

发明人： Tung-Hsing Wu ,  Kun-Bin Lee ,  Han-Liang Chou ,  Ting-An Lin ,  Chi-Cheng Ju

IPC分类号： G06T9/00 ,  H04N19/186 ,  H04N19/182 ,  H04N19/88

CPC分类号： G06T9/00 ,  H04N19/182 ,  H04N19/186 ,  H04N19/88

摘要： An image compression method includes at least the following steps: receiving a plurality of pixels of a frame, wherein pixel data of each pixel has a plurality of color channel data corresponding to a plurality of different color channels, respectively; encoding the pixel data of each pixel and generating bit-streams corresponding to the plurality of color channel data of the pixel, wherein the bit-streams corresponding to the plurality of color channel data of the pixel are separated; packing bit-streams of a same color channel data of different pixels into color channel bit-stream segments, wherein each of the bit-stream segments has a same predetermined size; and concatenating color channel bit-stream segments of the different color channels into a final bit-stream. Alternatively, color channel bit-stream segments of the same pixel are concatenated into a concatenated bit-stream portion, and concatenated bit-stream portions of different pixels are concatenated into a final bit-stream.

公开(公告)号：US09294804B2

公开(公告)日：2016-03-22

申请号：US14485284

申请日：2014-09-12

申请人： AT&T Intellectual Property I, LP

发明人： Pierre Costa

IPC分类号： H04N7/12 ,  H04N21/43 ,  H04N19/61 ,  H04N19/176 ,  H04N19/40 ,  H04N21/2343 ,  H04N21/238 ,  H04N21/2662 ,  H04N19/169 ,  H04N19/115 ,  H04N19/152 ,  H04N19/23 ,  H04N19/88 ,  H04N19/13 ,  H04N19/91 ,  H04N19/132

CPC分类号： H04N21/23611 ,  H04N19/115 ,  H04N19/13 ,  H04N19/132 ,  H04N19/152 ,  H04N19/169 ,  H04N19/176 ,  H04N19/188 ,  H04N19/23 ,  H04N19/40 ,  H04N19/61 ,  H04N19/88 ,  H04N19/91 ,  H04N21/23406 ,  H04N21/2343 ,  H04N21/23439 ,  H04N21/23605 ,  H04N21/23805 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2662 ,  H04N21/4305 ,  H04N21/4343 ,  H04N21/4346 ,  H04N21/44004

摘要： A system or method for processing a variable bit rate representation of an image sequence can include segmenting a variable bit rate representation of an image sequence into a plurality of segments and creating a second representation of the image sequence where a block of information from a first segment of the plurality of segments is interlaced with blocks of information of a second segment of the plurality of segments. The second representation of the image sequence can include a fragment header indicating the block of information of the first segment of the plurality of segments interlaced with the blocks of information of the second segment of the plurality of segments.

摘要翻译： 用于处理图像序列的可变比特率表示的系统或方法可以包括将图像序列的可变比特率表示分割成多个片段并创建图像序列的第二表示，其中来自第一片段的信息块 多个段中的多个段的第二段的信息块交织在一起。 图像序列的第二表示可以包括指示与多个片段的第二片段的信息块隔行扫描的多个片段中的第一片段的信息块的片段标题。

公开(公告)号：US09197905B2

公开(公告)日：2015-11-24

申请号：US13632636

申请日：2012-10-01

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Jian Wang ,  Thanh Thien Tran ,  Gang Hua ,  Ivan Garcia

IPC分类号： H04N19/40 ,  H04N19/88 ,  H04N19/46 ,  H04N19/186

CPC分类号： H04N19/88 ,  H04N19/186 ,  H04N19/40 ,  H04N19/46

摘要： A video system includes a first video device. The first video device includes a video output port and an arbitrary data scrambler. The first video device transmits a video stream through the video output port. The video output port is configured to insert video timing reference values into the video stream. The arbitrary data scrambler is configured to scramble non-video data for transmission in the video stream such that unscrambled non-video data containing video timing reference values is transformed, without information loss, to scrambled non-video data containing no video timing reference values.

摘要翻译： 视频系统包括第一视频设备。 第一视频设备包括视频输出端口和任意数据加扰器。 第一视频设备通过视频输出端口发送视频流。 视频输出端口被配置为将视频定时参考值插入到视频流中。 任意数据扰频器被配置为对非视频数据进行扰频，以便在视频流中进行传输，使得包含视频定时参考值的未加扰的非视频数据在没有信息丢失的情况下被变换到不包含视频定时参考值的加扰的非视频数据。

公开(公告)号：US20150319446A1

公开(公告)日：2015-11-05

申请号：US14754701

申请日：2015-06-30

申请人： MEDIATEK INC.

发明人： Tung-Hsing Wu ,  Kun-Bin Lee ,  Han-Liang Chou ,  Ting-An Lin ,  Chi-Cheng Ju

IPC分类号： H04N19/182 ,  H04N19/88 ,  H04N19/186

CPC分类号： G06T9/00 ,  H04N19/182 ,  H04N19/186 ,  H04N19/88

摘要： An image compression method includes at least the following steps: receiving a plurality of pixels of a frame, wherein pixel data of each pixel has a plurality of color channel data corresponding to a plurality of different color channels, respectively; encoding the pixel data of each pixel and generating bit-streams corresponding to the plurality of color channel data of the pixel, wherein the bit-streams corresponding to the plurality of color channel data of the pixel are separated; packing bit-streams of a same color channel data of different pixels into color channel bit-stream segments, wherein each of the bit-stream segments has a same predetermined size; and concatenating color channel bit-stream segments of the different color channels into a final bit-stream. Alternatively, color channel bit-stream segments of the same pixel are concatenated into a concatenated bit-stream portion, and concatenated bit-stream portions of different pixels are concatenated into a final bit-stream.

摘要翻译： 图像压缩方法至少包括以下步骤：接收帧的多个像素，其中每个像素的像素数据分别具有对应于多个不同颜色通道的多个颜色通道数据; 编码每个像素的像素数据并生成与像素的多个彩色通道数据相对应的位流，其中对应于该像素的多个彩色通道数据的位流被分离; 将不同像素的相同颜色通道数据的比特流打包成彩色通道比特流片段，其中每个比特流片段具有相同的预定大小; 以及将不同颜色通道的色彩通道位流段连接成最终位流。 或者，相同像素的色彩通道比特流片段被级联成级联的比特流部分，并且不同像素的级联的比特流部分被级联成最终比特流。