A Hierarchical Motion Estimation Based on the Properties of Motion Vectors for Low Complexity in Video Coding

摘要

To transmit and to store digital video sequences, the compression is vital. Motion Estimation (ME) is generally used to reduce redundant data in video sequences. ME which limits the performance of image quality, bitrates and encoding time require much complexity. To reduce the huge computational complexity, a hierarchical motion estimation method for multi-view video coding is proposed. The proposed method exploits the properties of motion vectors. The characteristic of the distribution of motion vectors is used to place the search points in the search area and to choose a search pattern for the current block. Experiment results show that the complexity reduction of the proposed method over PBS and TZ can be up to 98% and about 45-76% respectively while maintaining image quality and bitrates.