公开(公告)号：WO2014167297A1

公开(公告)日：2014-10-16

申请号：PCT/GB2014/051064

申请日：2014-04-04

Applicant: SONY CORPORATION ,  SONY EUROPE LIMITED

Inventor： BERRY, David ,  GAMEI, James Alexander ,  SAUNDERS, Nicholas Ian ,  SHARMAN, Karl James

IPC: H04N19/13 ,  H04N19/18 ,  H04N19/136

CPC classification number: H04N19/13 ,  H03M7/40 ,  H03M7/46 ,  H04N19/124 ,  H04N19/136 ,  H04N19/18 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91 ,  H04N19/93

Abstract: A method of encoding image data, comprises the steps of:frequency-transforming input image data to generate an array of frequency-transformed input image coefficients by a matrix- multiplication process, according to a maximum dynamic range of the transformed data and using transform matrices having a data precision; and selecting the maximum dynamic range and/or the data precision of the transform matrices according to the bit depth of the input image data.

Abstract translation: 一种编码图像数据的方法包括以下步骤：根据变换数据的最大动态范围，使用变换矩阵，通过矩阵乘法处理对输入图像数据进行频率变换，生成频率变换输入图像系数阵列 具有数据精度; 以及根据输入图像数据的位深度来选择变换矩阵的最大动态范围和/或数据精度。

公开(公告)号：WO2014167298A1

公开(公告)日：2014-10-16

申请号：PCT/GB2014/051065

申请日：2014-04-04

Applicant: SONY CORPORATION ,  SONY EUROPE LIMITED

Inventor： BERRY, David ,  GAMEI, James, Alexander ,  SAUNDERS, Nicholas, Ian ,  SHARMAN, Karl, James

IPC: H04N19/13 ,  H04N19/18 ,  H04N19/136

CPC classification number: H04N19/13 ,  H03M7/40 ,  H03M7/46 ,  H04N19/124 ,  H04N19/136 ,  H04N19/18 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91 ,  H04N19/93

Abstract: A data encoding method for encoding an array of data values as data sets and escape codes for values not encoded by the data sets, an escape code comprising a unary coded portion and a non-unary coded portion comprises the steps of: setting a coding parameter defining a minimum number of bits of a non-unary coded portion, the coding parameter being between 0 and a predetermined upper limit; adding an offset value of 1 or more to the coding parameter so as to define a minimum least significant data portion size; generating one or more data sets indicative of positions, relative to the array of data values, of data values of predetermined magnitude ranges, so as to encode the value of at least one least significant bit of each data value; generating, from at least the part of each data value not encoded by the one or more data sets, respective complementary most-significant data portions and least-significant data portions, such that the most-significant data portion of a value represents zero or more most significant bits of that portion, and the respective least-significant data portion is dependent upon a number of least significant bits of that part, the number of least significant bits being greater than or equal to the minimum least significant data portion size; encoding the data sets to an output data stream; encoding the most significant data portions to the output data stream; and encoding the least-significant portions to the output data stream.

Abstract translation: 一种数据编码方法，用于对数据集的数组和数据集编码的值进行编码，包括一元编码部分和非一体编码部分的转义码包括以下步骤：设置编码参数 定义非一元编码部分的最小比特数，所述编码参数在0和预定上限之间; 向编码参数添加1或更大的偏移值，以便定义最小最小有效数据部分大小; 生成指示预定幅度范围的数据值相对于数据值阵列的位置的一个或多个数据集，以便对每个数据值的至少一个最低有效位的值进行编码; 从未被所述一个或多个数据集编码的每个数据值的至少一部分生成相应的互补最高有效数据部分和最低有效数据部分，使得值的最高有效数据部分表示零个或更多 该部分的最高有效位和相应的最低有效数据部分取决于该部分的数量的最低有效位，最低有效位的数量大于或等于最小最小有效数据部分大小; 将数据集编码为输出数据流; 将最重要的数据部分编码到输出数据流; 以及将最不重要的部分编码到输出数据流。

公开(公告)号：WO2016059365A1

公开(公告)日：2016-04-21

申请号：PCT/GB2015/052522

申请日：2015-09-01

Applicant: SONY CORPORATION ,  SONY EUROPE LIMITED

Inventor： BERRY, David ,  OLDAY, Stephen ,  CHEN, Jian-Rong

IPC: H04L12/701 ,  H04L12/781

CPC classification number: H04L45/22 ,  H04J3/0632 ,  H04L29/06027 ,  H04N21/4302 ,  H04N21/4382

Abstract: A packet-based video network comprises a plurality of packetized video data nodes acting as packetized video data sources and/or packetized video data destinations; a packet switch configured to provide at least two selectable video packet routes amongst the plurality of nodes and to switch from one of the video packet routes to another of the video packet routes at a switching operation; and a video synchroniser configured to synchronise the video frame periods of at least those nodes acting as packetized video data sources; in which: each node acting as a packetized video data source is configured to launch onto the network packetized video data such that, for at least those video frame periods adjacent to a switching operation: the node launches onto the network packetized video data required for decoding that frame during a predetermined active video data portion of the video frame period, and the node does not launch onto the network packetized video data required for decoding that frame during a predetermined remaining portion of the video frame period; and the network is configured so that a switching operation from one of the video packet routes to another of the video packet routes is implemented during a time period corresponding to the predetermined remaining portion.

Abstract translation: 基于分组的视频网络包括充当分组化视频数据源和/或分组化视频数据目的地的多个分组化视频数据节点; 分组交换机，被配置为在所述多个节点中提供至少两个可选择的视频分组路由，并且在切换操作时从所述视频分组路由中的一个切换到另一视频分组路由; 以及视频同步器，被配置为使作为分组视频数据源的至少那些节点的视频帧周期同步; 其中：用作分组视频数据源的每个节点被配置为发射到网络分组化视频数据上，使得对于至少那些与切换操作相邻的视频帧周期：节点启动到解码所需的网络分组化视频数据 在该视频帧周期的预定的有效视频数据部分期间，该节点在该视频帧周期的预定剩余部分期间不启动到对该帧进行解码所需的网络分组化视频数据; 并且网络被配置为使得在与预定剩余部分相对应的时间段内实现从视频分组路由之一到视频分组路由中的另一个的切换操作。