TY  - RPRT
TI  - A fully automated calibration method for an optical see-through head-mounted operating microscope with variable zoom and focus.
AU  - Michael Figl
AU  - Christopher Ede
AU  - Johann Hummel
AU  - Felix Wanschitz
AU  - Rolf Ewers
AU  - Helmar Bergmann
AU  - Wolfgang Birkfellner
PY  - 2005
DO  - 10.1109/tmi.2005.856746
UR  - https://pubmed.ncbi.nlm.nih.gov/16279085/
ID  - 16279085
ER  -