报告时间：2018年9月19日（星期三）上午10：00
报告地点：浙江大学紫金港校区蒙民伟楼402会议室
报告人：Dr. Han Gong
主持人：鲍虎军 教授
Talk title: Colour Meets Geometry — Colour Space Homography Theorem and Its Applications

Abstract: Images of co-planar points in 3-dimensional space taken from different camera positions are a homography apart. Homographies are at the heart of geometric methods in a lot of computer vision tasks. In this talk, I will introduce the interesting finding of that homographies are the apposite tool for relating image colours of the same scene when the capture conditions —illumination colour, shading and device —change. Three applications will be presented. First, we show that colour calibration can be correctly formulated as a homography problem. Second, we compare the chromaticity distributions of an image of colourful objects to a database of object chromaticity distributions using homography matching. Lastly, we show colour homography for modelling the colour transfer problem. During the talk, I will also give a briefing about our research lab and the potential opportunities for PhD studies and academic research/funding collaborations.

Bio: Dr. Han Gong is a Lecturer (= US Assistant Professor) in Computing Sciences at the Colour and Imaging Lab, the University of East Anglia. Previously (2015-2018), he was a Senior Research Associate at the same UEA lab and a visiting researcher at the universities of Edinburgh and Cambridge. He received his PhD in Computing from the University of Bath. His research interests include colour & imaging, illumination understanding, and colour transfer. For more detailed information, please visit http://hangong.ml/.