• Treffer 17 von 18
Zurück zur Trefferliste

Can Modern Technologies Defeat Nazi Censorship?

  • Censorship of parts of written text was and is a common practice in totalitarian regimes. It is used to destroy information not approved by the political power. Recovering the censored text is of interest for historical studies of the text. This paper raises the question, whether a censored postcard from 1942 can be made legible by applying multispectral imaging in combination with laser cleaning. In the fields of art conservation (e.g. color measurements), investigation (e.g. Analysis of underdrawings in paintings), and historical document analysis, multispectral imaging techniques have been applied successfully to give visibility to information hidden to the human eye. The basic principle of laser cleaning is to transfer laser pulse energy to a contamination layer by an absorption process that leads to heating and evaporation of the layer. Partial laser cleaning of postcards is possible; dirt on the surface can be removed and the obscured pictures and writings made visible again. WeCensorship of parts of written text was and is a common practice in totalitarian regimes. It is used to destroy information not approved by the political power. Recovering the censored text is of interest for historical studies of the text. This paper raises the question, whether a censored postcard from 1942 can be made legible by applying multispectral imaging in combination with laser cleaning. In the fields of art conservation (e.g. color measurements), investigation (e.g. Analysis of underdrawings in paintings), and historical document analysis, multispectral imaging techniques have been applied successfully to give visibility to information hidden to the human eye. The basic principle of laser cleaning is to transfer laser pulse energy to a contamination layer by an absorption process that leads to heating and evaporation of the layer. Partial laser cleaning of postcards is possible; dirt on the surface can be removed and the obscured pictures and writings made visible again. We applied both techniques to the postcard. The text could not be restored since the original ink seems to have suffered severe chemical damage.zeige mehrzeige weniger

Volltext Dateien herunterladen

  • Can Modern Technologies Defeat Nazi Censorship.pdf
    eng

Metadaten exportieren

Weitere Dienste

Teilen auf Twitter Suche bei Google Scholar
Metadaten
Autoren/innen:Simone Pentzien, Ira Rabin, Oliver Hahn, Jörg Krüger, F. Kleber, F. Hollaus, M. Diem, R. Sablatnig
Persönliche Herausgeber/innen:J.-I. Park, J. Kim
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):ACCV 2012 Workshops, 11th Asian conference on computer vision
Jahr der Erstveröffentlichung:2013
Organisationseinheit der BAM:4 Material und Umwelt
4 Material und Umwelt / 4.5 Kunst- und Kulturgutanalyse
6 Materialschutz und Oberflächentechnik
6 Materialschutz und Oberflächentechnik / 6.4 Technologien mit Nanowerkstoffen
Verlag:Springer
Verlagsort:Berlin Heidelberg
Jahrgang/Band:II
Ausgabe/Heft:LNCS 7729
Erste Seite:13
Letzte Seite:24
Freie Schlagwörter:Image enhancement; Image restoration; Laser cleaning; Multispectral imaging
Veranstaltung:ACCV 2012 Workshops, 11th Asian conference on computer vision
Veranstaltungsort:Daejeon, Korea
Beginndatum der Veranstaltung:05.11.2012
Enddatum der Veranstaltung:09.11.2012
ISSN:0302-9743
ISBN:978-3-642-37483-8
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:25.04.2013