Lennart Wietzke Gerald Sommer Christian Schmaltz Joachim Weickert Differential Geometry of Monogenic Signal Representations. 454-465 2008 conf/robvis/2008 RobVis http://dx.doi.org/10.1007/978-3-540-78157-8_35 db/conf/robvis/robvis2008.html#WietzkeSSW08