Note
"April, 1997."
Author affiliated with: Institute for Aerospace Research Structures, Materials and Propulsion Laboratory, National Research Council Canada.
Includes executive summary in French.
Summary
Edge of Light scanning is an optical enhancement technique invented and being developed at the Institute for Aerospace Research at the National Research Council of Canada for the inspection of aircraft exterior surfaces for crack detection. With the development of a temporary film coating procedure, the technique was adapted to the inspection of paper surfaces. This led to investigation of counterfeit money, art forgery, handwriting impressions, altered credit cards and fingerprints. The next step in deciding whether this technology has an application in the police and security community is to put the prototype system into use by police forces.