Multiband Imaging Techniques for Cultural Heritage

The course is dedicated to learning the principles and techniques of diagnostic imaging applied to the study of historically and artistically significant objects. The topics covered will include the basics of multiband imaging techniques, both from a technical and phenomenological standpoint. The use of visible, UV, infrared bands, and radiography will be explained to obtain information regarding conservation, material composition, and the execution technique of artifacts through the interpretation of the obtained images. Aspects of post-processing for proper color management and for the processing and interpretation of images in false colors and pseudocolors will also be addressed. Additionally, the potentials of multi- and hyperspectral imaging techniques will be illustrated. Besides traditional techniques, some computational techniques such as reflectance transformation imaging and 3D photogrammetry will be presented.

The student will develop basic knowledge related to the principles of proper multi-band photographic acquisition: understanding and distinguishing the methods for reading, analyzing, and interpreting data from images of the multi-band techniques covered in the course. The student will be able to correctly apply the basic post-production methods while understanding their limits and potentials. They will also understand the potentials and limitations of using image data as a method of analysis, not only material and morphological but also of the technique used to create the object of historical-artistic interest. Finally, they will be able to evaluate, during the stage of a potential diagnostic project, which standard or advanced imaging techniques will be the most suitable for the specific characteristics of the object in question.