just to complete on HDR: http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=5828793&KC=&FT=E&locale=en_EP http://worldwide.espacenet.com/publicat

just to complete on HDR: http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=5828793&KC=&FT=E&locale=en_EP http://worldwide.espacenet.com/publicationDetails/biblio?CC=... From Wikipedia: Steve Mann developed and patented the global-HDR method for producing digital images having extended dynamic range at the MIT Media Laboratory.