In-scale motion aligned temporal filtering

Ruiqin Xiong, Jizheng Xu, Feng Wu, Shipeng Li
2006 IEEE International Symposium on Circuits and Systems  
To handle the mismatch problems of spatial-domain motion aligned temporal filtering (MATF) in providing spatial scalability, this paper presents a novel in-scale motion aligned temporal filtering (ISMATF) for highly scalable video coding. For each lifting step of ISMATF, the predict or update is carried out at various resolutions in a scale-by-scale way and the operation at higher resolution is designed to embed the operations at lower resolutions to prevent redundancy in frame representation.
more » ... he proposed ISMATF has several main features, which as a whole differentiates it from other schemes (e.g. spatial-domain MATF, in-band MATF, straightforward multiresolution MATF) and makes it effective in video coding with spatial scalabilities. These features include 1) Multi-resolution lifting with perfect reconstruction capability; 2) Non-redundancy in frame representation, which favors highly scalable video coding; 3) Temporal filtering performed in the image-domain of corresponding resolution, which is different from in-band schemes and preserves high efficiency of motion compensation; 4) No mismatch between the encoder and decoder, no matter which resolution is decoded. The proposed ISMATF scheme solves the mismatch problems of SDMATF at low resolution while maintains a good performance at high resolution. It can outperform redundant multi-resolution MATF schemes by up to 1.0 dB at high resolution.
doi:10.1109/iscas.2006.1693260 dblp:conf/iscas/XiongXWL06 fatcat:6j2bfn4wcfbdvncbdthu4dzoe4