media

Alessia Di Benedetto - Correlative Multimodal Imaging: the combination of optical techniques for the study of artworks Abstract: Direct Correlative Multimodal Imaging is an emerging approach that integrates multiple imaging modalities in a hybrid setup, providing a comprehensive understating of a sample. Such an approach would be extremely interesting in Heritage Science, where artworks exhibit high material heterogeneity. In this field, while the necessity of a multi-analytical approach is acknowledged, current methods often employ separate setups sequentially. Instead, the combination of different non-destructive optical techniques in a unique setup enables precise alignment of datasets, yielding complementary information. This presentation introduces two such setups: a Raman-Photoluminescence microscope and a multiscalar camera for reflectance and photoluminescence measurements. Their description is complemented with a specialized multimodal analysis protocol, facilitating insightful information extraction from collected hyperspectral mapping datasets. Bio: Alessia Di Benedetto is a second-year PhD student at the Physics department of Politecnico di Milano. She is part of the ArtIs research group whose activity is focused on the development and application of optical spectroscopy and imaging techniques for the study of artistic materials and objects relevant for our Cultural Heritage. Her research is aimed at the design and development of new multimodal optical devices for the imaging of artwork and micro-samples, and at complementing these techniques with the application of multivariate data analysis.

Luís Manuel de Almeida Nieto – Reflectance Imaging Spectroscopy for the analysis of historical manuscripts Abstract: The study of historical manuscripts often suffers from a variety of challenges. Ink degradation, aggressive historic treatments and contemporary and later editorial changes can all result in the texts being partially or completely illegible. This talk covers the use of reflectance imaging spectroscopy (RIS) in the visible and near infrared range (400-1000 nm), in combination with advance data processing methods, for the analysis of such illegible historical manuscripts. We explore the use of unsupervised and supervised machine learning methods for the processing of RIS data of historical manuscripts, and evaluate the explainability of the resulting black box machine learning models. We cover case studies of manuscripts ranging from the 9th to 16th centuries. Bio: Luís Manuel de Almeida Nieto is a Venezuelan researcher currently pursuing a Ph.D. in materials science at TU Delft under the supervision of Prof. Joris Dik, Dr. Matthias Alfeld and Dr. Raf Van de Plas. His research focuses on the development of novel data processing methods for the MA-XRF and RIS analysis of cultural heritage objects. He holds a B.Sc. in mechanical engineering and a M.Sc. in materials science and engineering.

Art Proaño Gaibor – Uncovering Historical Dyes with a Novel Advanced Chromatographic Technique Abstract: This talk will introduce an innovative analytical technique that combines ultra-high pressure liquid chromatography with photodiode array detection, seamlessly integrated with high-resolution mass spectrometry (UHPLC-PDA-HRMS). It is designed for analysing a wide range of organic colorants in a single run. The practical application of this method is exemplified by several case studies involving historically and archaeologically significant objects. For curators, art historians, and conservators, this technique offers new opportunities to investigate and preserve the rich colour history of cultural artifacts, providing a deeper understanding of historical dyeing practices and material compositions. Bio: Art works as a heritage scientist at the Cultural Heritage Agency of the Netherlands. His research focuses on organic colorants, their technology, and phenomenology. His expertise involves chromatographic and mass spectrometric techniques applied to the research of dyes in, among others, paintings, polychrome surfaces, and heritage on paper.

Presentation by Luc Megens on the 10th Century Gospel Book of Egmond

Inez van der Werf (RCE) on Zinc White in Mondriaan