中文摘要：

3D-HEVC将HEVC先进的编码工具充分应用到3D视频，随之带来的主要问题是编码的高复杂度。针对3D—HEVC的帧间编码提出了两点改进以降低其编码复杂度。首先，根据相邻帧相关性自适应确定编码单元的划分深度，然后通过判断编码单元的运动活跃度来限定预测单元的类型选择。提出的算法经仿真实验证明，在保持码率、PSNR基本不变的情况下，其编码时间平均可减少30％。

英文摘要：

3D-HEVC makes full use of HEVC＇ s advanced coding tools to 3D video, which causes high coding complexity. So, two improvements are proposed for inter-frame coding of 3D-HEVC, to reduce coding complexity in this paper. First, the bit-depth of coding unit is judged adaptively based on the correlation of adjacent frames. Then, the types of prediction unit are limited by estimating the motion activity of current coding unit. Experimental results show that the proposed algorithm can reduce about 30% of encoding time as compared to HTM, while it maintains the similar PSNR and bit-rate.