Jie Cao Ming-Chao Che Xiaolin Wu Jie Liang GPU-aided directional image/video interpolation for real time resolution upconversion. 1-6 2009 MMSP http://dx.doi.org/10.1109/MMSP.2009.5293313 conf/mmsp/2009 db/conf/mmsp/mmsp2009.html#CaoCWL09