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The purpose of this paper is to present a description and current state of the " ROMA " (Reconhecimento Óptico de Música Antiga or Ancient Music Optical Recognition) Project that consists on building an application, for the recognition and restoration specialised in ancient music manuscripts (from XVI to XVIII century). This project, beyond the inventory of(More)
This paper presents a practical sequence to study sand grains at the macroscopical scale. The approach consists of two mains phases, the recognition of the grains and the assessment of some of its characteristics. The method is validated on the dimensional features by comparison with a sieving procedure through the analysis of eight large sand samples of(More)
The purpose of this paper is to present a complete methodology based on a multidisciplinary approach, that goes from the extraction of features till the classification of a set of different portuguese granites. The set of tools to extract the features that characterise polished surfaces of the granites is mainly based on mathematical morphology. The(More)