Liverpool Centre for Mathematics in Healthcare

Thursday 31st May 2018 - Analog Image Estimation and Applications in Multispectral Image Super Resolution

Speaker: Professor Weihong Guo, Case Western Reserve University, USA

Thursday 31st May 2018, 2.00pm – 3.00pm

SIRE Seminar Room, Chadwick Building

Abstract: From pictures taken by smart phones to x-ray pictures doctors use for diagnosis, images become an important part of our life. High quality images of various dimensions are important for both visualization and analysis purpose.  Image super resolution algorithms aim at enhancing resolution of images obtained from hard ware devices with limited resolution for better image quality.   Different from most of the existing approaches that focus on discrete modeling and computing, we study how to recover the analog image, the underlying intensity function defined on a continuous domain, which provides more details in more flexible resolution.  The idea is to find a “basis” that might be redundant to represent the underlying intensity function and use known information to find the coefficients of the basis.  Various methods have been explored to account for modeling discrepancy.  We will also present recent results on applying the idea to multispectral and hyperspectral imaging.  Competitive numerical results have been obtained.