Zhixing XueShuang XiaMarcus StrandJohann Marius ZöllnerRüdiger DillmannA ray-shooting based quality measurement for grasping and manipulation.1930-19352011ROBIOhttps://doi.org/10.1109/ROBIO.2011.6181573conf/robio/2011db/conf/robio/robio2011.html#XueXSZD11