This work was developed in the Renato Archer Center for Information Technogy - CTI (www.cti.gov.br) in Campinas - SP, Brazil (3D Technologies Division) published at the 5th International Conference on Advanced Research in Virtual and Rapid Prototyping (VRAP2011) and later at the World Journal of Urology (October 2012, Volume 30, Issue 5, pp 687-691)
The system allows the surgeon to control the medical imaging software InVesalius (also developed by CTI) without any physical contact, just by hand gestures. The system uses the OpenNI/NITE framework and is cross-platform (Windows/Linux).
Invesalius website:
http://svn.softwarepublico.gov.br/trac/invesalius