Adaptive content-based Tile partitioning algorithm for the HEVC standard

This paper proposes a content-based Tile partitioning algorithm designed to exploit video properties in the tiling process, aiming at the reduction of the coding losses generated by the use of Tiles. In the proposed algorithm two steps are performed to define the vertical and horizontal Tile boundaries willing to group the high correlated samples into the same Tile partition. The definition of the Tiles' boundaries is performed by analyzing the variance map extracted from the raw picture information. Experimental results have shown that the proposed algorithm is able to reduce the inherent coding efficiency losses of using Tiles when compared to the conventional uniform spaced Tile partitions.