Mathias Kölsch Vladimir Pavlovic Branislav Kisacanin Thomas S. Huang Special issue on vision for human-computer interaction. 1-3 2007 108 Computer Vision and Image Understanding 1-2 http://dx.doi.org/10.1016/j.cviu.2007.01.002 db/journals/cviu/cviu108.html#KolschPKH07