Inexpensive, Near-Infrared Imaging of Artwork Using a Night-Vision Webcam for Chemistry-of-Art Courses

Autor/inn/en	Smith, Gregory D.; Nunan, Elizabeth; Walker, Claire; Kushel, Dan
Titel	Inexpensive, Near-Infrared Imaging of Artwork Using a Night-Vision Webcam for Chemistry-of-Art Courses
Quelle	In: Journal of Chemical Education, 86 (2009) 12, S.1382-1388 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Art Products; Preservation; Art History; Chemistry; Interdisciplinary Approach; Painting (Visual Arts); Technology Uses in Education; Optics; Visual Environment; Lighting; Electronic Equipment; Sensory Aids; Visual Acuity; Spectroscopy; Radiation; Photography; Cost Effectiveness; Class Activities + Suchen Sie Ihr Suchwort? Künstlerische Produktion; History of art; History of arts; Kunstgeschichte; Chemie; Fächerübergreifender Unterricht; Fächerverbindender Unterricht; Interdisziplinarität; Malerei; Technology enhanced learning; Technology aided learning; Technologieunterstütztes Lernen; Optik; Beleuchtung; Elektronisches Gerät; Sinnesreiz; Optisches Differenzierungsvermögen; Spektroskopie; Strahlung; Fotografie; Kosten-Nutzen-Analyse; Kosten-Nutzen-Denken
Abstract	Imaging of artwork is an important aspect of art conservation, technical art history, and art authentication. Many forms of near-infrared (NIR) imaging are used by conservators, archaeologists, forensic scientists, and technical art historians to examine the underdrawings of paintings, to detect damages and restorations, to enhance faded or overpainted inscriptions, to study artists' techniques, to examine questioned documents, and as a nondestructive analytical tool for identifying certain pigments. The spectroscopic principles underlying the NIR imaging of artwork offer a powerful and engaging teaching opportunity for educators offering a chemistry-of-art course. This article introduces an inexpensive imaging system based on a night-vision webcam. The low cost of the total system (less than $20) could allow every student in a science course to use a NIR imaging camera. Examples are given to show the many techniques of NIR imaging that are important in the fields of art conservation and technical art history. Furthermore, additional spectroscopic experiments exploring the diffuse reflection spectra of traditional pigments in the visible and NIR regions are recommended to help explain the numerous interaction phenomena responsible for the NIR images of artwork and other objects and the occasionally bewildering images acquired outside the familiar visible spectrum. (Contains 5 figures.) (As Provided).
Anmerkungen	Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10