基于运动一致性的3D-HEVC深度视频帧间编码快速算法

Motion consistency-based fast algorithm for 3D-HEVC depth video inter-coding

针对深度视频在3D-HEVC编码框架中编码复杂度较高,提出了一种基于运动一致性的深度视频快速帧间编码算法.首先把深度视频划分为4个区域:彩色和深度视频均运动区域、彩色视频运动但深度视频静止区域、彩色视频静止但深度视频运动区域以及彩色和深度视频均静止区域.然后,根据不同分区对最大编码单元设计不同的编码策略.结果表明,本算法与原始测试平台HTM-10.0相比,在绘制的虚拟视点质量几乎一致的情况下,各序列深度视频编码时间平均节省了63.58%,总体编码时间节省了40.13%.

Aiming at the high complexity problem in 3D-HEVC depth video inter-coding, a fast depth video inter coding algorithm is proposed using motion consistency. Firstly, each frame of depth video is divided into four regions, which are texture move and depth move region, texture move and depth static region, texture static and depth move region, and finally texture static and depth static region. Based on these four divided regions, different partition depth levels and prediction modes of LCU are designed for encoding each of the regions. Compared to HTM-10.0, our experimental results show that the proposed algorithm can save 40.13% entire time and 63.58% depth time over various test sequences with insignificant negative impact on the quality of virtual views as a whole.