公开(公告)号：US09571829B2

公开(公告)日：2017-02-14

申请号：US14024047

申请日：2013-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Chao Pang ,  Zilian Ou

IPC: H04N7/12 ,  H04N19/124 ,  H04N19/176 ,  H04N19/196 ,  H04N19/149 ,  H04N19/46 ,  H04N19/115 ,  H04N19/96

CPC classification number: H04N19/124 ,  H04N19/115 ,  H04N19/149 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/96

Abstract: An encoding includes: obtaining, by an encoder, data to be encoded, where the data to be encoded is at least one LCU; determining, a quantization depth parameter of the LCU according to a preset bit rate control algorithm, and adding the quantization depth parameter into the data to be encoded; determining, a QP of each CU according to a size of a minimum picture block and a size of each CU included in the LCU; calculating, by the encoder, a QP difference of each CU according to the QP of each CU and a QP prediction value of each CU; for each CU that satisfies a preset condition, carrying, by the encoder, the QP difference of the CU in the CU; and encoding, by the encoder, the quantization depth parameter, the QP difference of the CU that satisfies the preset condition, and each CU to obtain a bit stream.

Abstract translation: 编码包括：由编码器获取待编码的数据，其中要被编码的数据是至少一个LCU; 根据预设比特率控制算法确定LCU的量化深度参数，并将量化深度参数加到待编码的数据中; 根据最小图像块的大小和包括在所述LCU中的每个CU的大小来确定每个CU的QP; 根据每个CU的QP和每个CU的QP预测值，由编码器计算每个CU的QP差; 对于满足预设条件的每个CU，由编码器携带CU中的CU的QP差; 并且由编码器编码量化深度参数，满足预置条件的CU的QP差和每个CU以获得比特流。

公开(公告)号：US20140079117A1

公开(公告)日：2014-03-20

申请号：US14024047

申请日：2013-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Chao Pang ,  Zilian Ou

IPC: H04N7/26

CPC classification number: H04N19/124 ,  H04N19/115 ,  H04N19/149 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/96

Abstract: An encoding includes: obtaining, by an encoder, data to be encoded, where the data to be encoded is at least one LCU; determining, a quantization depth parameter of the LCU according to a preset bit rate control algorithm, and adding the quantization depth parameter into the data to be encoded; determining, a QP of each CU according to a size of a minimum picture block and a size of each CU included in the LCU; calculating, by the encoder, a QP difference of each CU according to the QP of each CU and a QP prediction value of each CU; for each CU that satisfies a preset condition, carrying, by the encoder, the QP difference of the CU in the CU; and encoding, by the encoder, the quantization depth parameter, the QP difference of the CU that satisfies the preset condition, and each CU to obtain a bit stream.

Abstract translation: 编码包括：由编码器获取待编码的数据，其中要被编码的数据是至少一个LCU; 根据预设比特率控制算法确定LCU的量化深度参数，并将量化深度参数加到待编码的数据中; 根据最小图像块的大小和包括在所述LCU中的每个CU的大小来确定每个CU的QP; 根据每个CU的QP和每个CU的QP预测值，由编码器计算每个CU的QP差; 对于满足预设条件的每个CU，由编码器携带CU中的CU的QP差; 并且由编码器编码量化深度参数，满足预置条件的CU的QP差和每个CU以获得比特流。