Title :
Location and recognition of flashlight projections for visual interfaces
Author :
Green, Jonathan ; Pridmore, Tony ; Benford, Steve ; Ghali, Ahmed
Author_Institution :
Sch. of Comput. Sci. & IT, Nottingham Univ., UK
Abstract :
We consider the location and recognition of flashlight projections given the image sequence supplied by a fixed camera monitoring a physical surface. A quotient method extracts a description of the flashlight projection that is independent of the reflectance of the illuminated surface. The information recovered is used to recognise individual flashlights and trigger audiovisual events in response to users´ actions. A demonstration application, an interactive poster, is described and directions for future work identified.
Keywords :
cameras; image sequences; monitoring; pattern recognition; audiovisual event; camera monitoring; flashlight projection location; flashlight projection recognition; illuminated surface; image sequence; interactive poster; quotient method; visual interface; Cameras; Computer science; Computerized monitoring; Data mining; Displays; Image recognition; Image sequences; Reflectivity; Robustness; Space technology;
Conference_Titel :
Pattern Recognition, 2004. ICPR 2004. Proceedings of the 17th International Conference on
Print_ISBN :
0-7695-2128-2
DOI :
10.1109/ICPR.2004.1333930