Investigation and analysis on the effect of filtering mechanisms for 3D depth map coding

Depth map is a kind of video clip that contains 3D object´s depth information, and is an important coding feature in the recently 3D video coding standards, which has been applied for the latest 3D coding approaches, e.g. MV-HEVC and 3D-HEVC. It has been approved that the support of depth map coding can significantly improve the coding performance for 3D videos, and provide more flexibility for 3D applications. Some previous works show that depth map has some different coding properties compared to the traditional 2D sequences. Many coding tools have different performance influence and behaviors on these two kind of video clips. This paper concentrates on the investigation and analysis of those phenomena for depth map coding.