Geometry-adaptive motion partitioning using improved temporal prediction
Max Bläser, Cordula Heithausen, Mathias Wien · 2017
Current state of the art video codecs such as HEVC are based on rectangular motion partitioning and compensation. To further enhance the compression performance, more flexible block partitioning strategies are needed. We present geometry based motion partitioning (GMP) in a post-HEVC framework with improved temporal prediction of GMP parameters. Our main contribution is a simple yet efficient temporal projection method for GMP parameters using available reference picture motion vectors, which allows the tracking of geometric partitioning lines along a motion trajectory. Average bit rate reductions by 1.35% are reported.