Non-Destructive Analyses
A.Y. 2022/2023
Learning objectives
The aim of the course is to provide students with an overview of the methods of intervention on easel paintings with non-destructive techniques for the analysis of pictorial pigments. The employed techniques are the optical characterization by UV-VIS-NIR spectroscopy and elemental characterization (XRF)
Expected learning outcomes
Software skills for to use of spectroscopic instrumentations in different spectral bands and data analysis. Ability to integrate results from complementary analysis techniques
Lesson period: Second semester
Assessment methods: Esame
Assessment result: voto verbalizzato in trentesimi
Single course
This course cannot be attended as a single course. Please check our list of single courses to find the ones available for enrolment.
Course syllabus and organization
insegnamanto erogato ad anni alterni , non attivo nel A.A 2022-23
Lesson period
Second semester
Course syllabus
Photographic techniques and technical photography: history, physical principles and methods. Lenses, detectors and acquisition systems.
Experimental set-ups for the correct acquisition of visible light images. Types of detectors, sources and illumination (diffused, grazing, transmitted).
Images post-production: RAW, TIFF, PNG and JPG formats. Use of colorimetric targets for color management, limits and potentialities. Colorimetric spaces for images.
Computational techniques: HDR, focus-stacking, reflectance transformation imaging, 3D photogrammetry.
Infrared imaging: characteristics and use of the different bands NIR, SWIR and LWIR to exploit the optical and thermal phenomena in the interaction light-matter, set-up and images post-processing.
Fluorescence imaging from ultraviolet to infrared, set-up and images post-processing.
False and pseudo-color imaging: methods of image processing and analytical interpretation.
Multiband, multispectral and hyperspectral imaging: definitions, differences and applications.
"Gigapixel images", methods of processing and visualization of multiband images with high spatial resolution.
Radiographic imaging, set-up, detector types and comparison with optical and thermal imaging techniques.
Point spectroscopies vs mapping: comparison, potentialities, computational aspects for data-processing.
Imaging for conservation.
For each technique covered by the course it will be presented several up to date case studies in order to highlight the specific potential and limitations.
Experimental set-ups for the correct acquisition of visible light images. Types of detectors, sources and illumination (diffused, grazing, transmitted).
Images post-production: RAW, TIFF, PNG and JPG formats. Use of colorimetric targets for color management, limits and potentialities. Colorimetric spaces for images.
Computational techniques: HDR, focus-stacking, reflectance transformation imaging, 3D photogrammetry.
Infrared imaging: characteristics and use of the different bands NIR, SWIR and LWIR to exploit the optical and thermal phenomena in the interaction light-matter, set-up and images post-processing.
Fluorescence imaging from ultraviolet to infrared, set-up and images post-processing.
False and pseudo-color imaging: methods of image processing and analytical interpretation.
Multiband, multispectral and hyperspectral imaging: definitions, differences and applications.
"Gigapixel images", methods of processing and visualization of multiband images with high spatial resolution.
Radiographic imaging, set-up, detector types and comparison with optical and thermal imaging techniques.
Point spectroscopies vs mapping: comparison, potentialities, computational aspects for data-processing.
Imaging for conservation.
For each technique covered by the course it will be presented several up to date case studies in order to highlight the specific potential and limitations.
Prerequisites for admission
Elements of basic chemistry and physics (atoms, molecules, energy, electromagnetic spectrum, optics, light-matter interaction).
Teaching methods
Lectures and excercise.
Teaching Resources
Lectures slides ide lectures and texts already used for other fundamental courses.
During the course, articles and publications will be shared.
For further study we suggest:
G. Verhoeven, Basics of photography for cultural heritage imaging, in: 3D Recording, Documentation and Management of Cultural Heritage, Whittles Publishing, 2016: pp. 127-251.
C.S. Johnson, Science for the curious photographer: an introduction to the science of photography, Routledge, 2017.
M. Boscarol, Prima lezione sul colore, Tarka, 2019.
J. Dyer, G. Verri, J. Cupitt, Multispectral Imaging in Reflectance and Photo-induced Luminescence Modes: A User Manual, British Museum, 2013.
J. Tum, A. Middleton, Radiography of cultural material, Routledge, 2006.
During the course, articles and publications will be shared.
For further study we suggest:
G. Verhoeven, Basics of photography for cultural heritage imaging, in: 3D Recording, Documentation and Management of Cultural Heritage, Whittles Publishing, 2016: pp. 127-251.
C.S. Johnson, Science for the curious photographer: an introduction to the science of photography, Routledge, 2017.
M. Boscarol, Prima lezione sul colore, Tarka, 2019.
J. Dyer, G. Verri, J. Cupitt, Multispectral Imaging in Reflectance and Photo-induced Luminescence Modes: A User Manual, British Museum, 2013.
J. Tum, A. Middleton, Radiography of cultural material, Routledge, 2006.
Assessment methods and Criteria
Three written multiple-choice and open-answer tests during the course at the end of specific parts of the program. Final oral interview based on the discussion of a scientific paper chosen by the student and agreed with the teacher and some questions based on the results of the partial tests.
Written and oral exam (article presentation and questions) for non-attending students or for those who did not pass the partial test.
Written and oral exam (article presentation and questions) for non-attending students or for those who did not pass the partial test.
ING-IND/23 - APPLIED PHYSICAL CHEMISTRY - University credits: 6
Lessons: 48 hours