Gerhard Reitmayr. I am a researcher in visual computing at Qualcomm corporate R&D. At nullspace.at I keep records of my former academic work, coding and other projects.
Mobile Interactive Hologram Verification (with Andreas Hartl, Jens Grubert and Dieter Schmalstieg)
We present an interactive application for mobile devices that integrates the recognition of the documents with the interactive verification of view-dependent security elements such as holograms or watermarks. The system recognizes and tracks the paper document, provides user guidance for view alignment and presents a stored image of the element’s appearance depending on the current view of the document also recording user decisions. We describe how to model and capture the underlying spatially varying BRDF representation of view-dependent elements.