一、报告题目：Reverse typography and the theory of shape: can old books be brought back to life?

二、报告人：Jean-Michel Henri Olivier Morel教授

三、时  间：2026年10月26日9:00-10:30

四、地  点：A3-217

报告摘要：Reverse typography is a technique that enables the shapes of printed characters to be extracted from scanned documents in digital form, recognised, and restored in a printable format. One of the aims of the technique developed by my team is to contribute to the history of typography. A more ambitious goal is to breathe new life into the many high-interest books gathering dust on library shelves, making them accessible in a fully digitised form that retains the original appearance. This will lead me to discuss how to overcome one of the main pitfalls of artificial intelligence: its tendency to 'hallucinate'. I will illustrate my talk with experiments performed on images of scanned books, shapes, and Chinese characters. In doing so, I will touch upon the underlying techniques stemming from the mathematical theory of planar shapes, the PDEs handling them, and their use in computer graphics.

报告人简介：Jean-Michel Morel started his career as teaching assistant in mathematics at University of Marseille, and obtained his doctorate at Sorbonne University in 1985. He then held professor positions in applied mathematics at Paris Sciences & Lettres University, Paris-Saclay University, City University of Hong Kong, and is currently chair professor in data science at Lingnan University. Trained as a pure mathematician and a specialist of partial differential equations, Jean-Michel Morel took an early interest in computer vision and AI and specialized in the mathematical formalization of visual perception. This led him to conceive theories for the use of PDEs and variational methods in image processing, and to the design of image analysis algorithms. His algorithms have been implemented in imaging systems such as earth observation satellites, medical devices, industrial cameras and mobile phones.

欢迎大家参加！联系人：喻高航