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。