This paper discusses the incorporation of an opto-biometric method into identification documents. Factors important to a successful implementation strategy are discussed. Design follows from anticipated use of the document, as well as size, cost and time factors. Public sector documents face additional privacy concerns which contribute psychological and emotional factors to the choice of opto-biometric features. Travel documents based on international standards face further constraints based on national laws and customs.
John W. Mercer, John W. Mercer,
"Design and strategies for optobiometric identification", Proc. SPIE 2659, Optical Security and Counterfeit Deterrence Techniques, (15 March 1996); doi: 10.1117/12.235474; https://doi.org/10.1117/12.235474