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Writing analysis of Stradiviari's relics / Analisi della scrittura dei reperti Stradivariani
The goal was studying the working notes present on Antonio Stardivari's relics, a collection of artifacts, technical drawings and wood molds used by the famous violin maker between the 17th and the 18th century, currently held in "Museo del Violino" The complexity of this data set relies in the fact that writings are always very short (few text lines or even few words) and show alterations, irregularities and occasional ink spots. Furthermore, during the years, new annotations were added to the original ones, first by the sons of Stradivari and then by the various owners of the collection, leading to serious attribution problems.
The study was initially conducted using a multidisciplinary approach, combining image processing (for a fast screening of the documents) with X-Ray Fluorescence (XRF) spectroscopy (for studying the elemental composition of the inks). Then, the image processing step was improved to work as stand alone, in order to avoid the direct access to the relics, needed to apply XRF. The method uses both allographic and texture features to reach an attribution. Paleographic data obtained by previous studies was used as reference for the development. The results was promising: 90% of correct attribitution using only few short texts for each author as training.
- Piercarlo Dondi, Alessandro Danani, Luca Lombardi, Marco Malagodi, Maurizio Licchelli (2018). Handwriting identification of short historical manuscripts, Proceedings of DAS2018 - 13th IAPR International Workshop on Document Analysis Systems, Vienna, Austria, 24-27 April 2018, DOI:10.1109/DAS.2018.45.
- Giusj Valentina Fichera, Piercarlo Dondi, Maurizio Licchelli, Luca Lombardi, Stefano Ridolfi, Marco Malagodi, (2016). A combined approach for the attribution of handwriting:the case of Antonio Stradivari’s manuscripts, Applied Physics A, Vol. 122, Issue 11, article 970 November 2016, DOI:10.1007/s00339-016-0497-6.