Jiao Wang En-Hui Yang Xiang Yu An Efficient Motion Estimation Method for H.264-Based Video Transcoding with Spatial Resolution Conversion. 444-447 2007 ICME http://dx.doi.org/10.1109/ICME.2007.4284682 conf/icmcs/2007 db/conf/icmcs/icme2007.html#WangYY07