公开(公告)号：US20140016704A1

公开(公告)日：2014-01-16

申请号：US14020953

申请日：2013-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sixin LIN ,  MINGYUAN YANG

IPC: H04N7/36

CPC classification number: H04N19/513 ,  H04N19/51 ,  H04N19/517 ,  H04N19/523 ,  H04N19/56 ,  H04N19/567

Abstract: Embodiments of the present invention provide an encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal integrated candidate block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated candidate block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated, thereby improving encoding efficiency, avoiding an increase in data bandwidth, improving decoding quality, and reducing calculation complexity.

Abstract translation: 本发明的实施例提供了一种用于视频图像的编码方法，解码方法，编码装置，解码装置。 编码方法包括：基于运动矢量积分技术确定当前块的最佳综合候选块; 基于最佳综合候选块的预测方向确定需要由解码器使用的运动矢量导出模式; 基于运动矢量导出模式来校正当前块的运动矢量; 以及基于所校正的运动矢量来确定所述当前块的预测值和原始值之间的残差，从而对当前块进行编码。 根据技术方案，通过校正运动矢量获得更准确的预测值，生成较小的残差，从而提高编码效率，避免数据带宽增加，提高解码质量，降低计算复杂度。