%0 Journal Article %T Chord-Length Shape Features for Human Activity Recognition %A Samy Sadek %A Ayoub Al-Hamadi %A Bernd Michaelis %A Usama Sayed %J ISRN Machine Vision %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/872131 %U http://dx.doi.org/10.5402/2012/872131