Chung Ming Kuo Yu-Hsin Kuan Chaur-Heh Hsieh Yi-Hui Lee A Novel Prediction-Based Directional Asymmetric Search Algorithm for Fast Block-Matching Motion Estimation. 893-899 2009 19 IEEE Trans. Circuits Syst. Video Techn. 6 http://dx.doi.org/10.1109/TCSVT.2009.2017420 db/journals/tcsv/tcsv19.html#KuoKHL09