decoration, some colour, and there is a kind of a 3—dimensional structure, and these — 3—dimensional structure, and these pieces do not match exactly _ these pieces do not match exactly. it is a very difficult and — exactly. it is a very difficult and challenging problem. the -uzzle and challenging problem. the puzzle has — and challenging problem. t'te puzzle has remained and challenging problem. ttj: puzzle has remained unsolved for decades, and now the team led by a university in venice will create a robotic system to analyse and eventually pieced together the frescoes. called repair, or reconstructing the past, artificial intelligence and robotics meet cultural heritage, it is the first time machine learning and artificial intelligence techniques will be used to take on a project of this scale. used to take on a pro'ect of this sash used to take on a pro'ect of this saith this scale. the robot is scanning _ this scale. the robot is scanning a _ this scale. the robot is scanning a piece - this scale. the robot is scanning a piece of - this scale. the robot is i scanning a piece of fresco using polarised lenses, and so at the end of the process the piece will be scanned in 3d, with the same infrastructure and the same type of technology we can also scan the same piece using spectral sensors that are able to collect information that the human eyes cannot see. this information includes the