MSR Symposium on Computational Photography: Session 2

Опубликовано 6 сентября 2016, 16:33

Creating, Editing, and Viewing Very BIG Images; Michael Cohen, Matt Uyttendaele, Johannes Kopf - Microsoft Research: Very high resolution “gigapixel” images offer a variety of new viewing and interaction paradigms including deep pan and zoom as well as dynamically modifying the exposure gain and bias during viewing. Viewing, creating and editing such images present a number of challenges. We will describe how we have overcome these and demonstrate an online viewing system called HD View. See research.microsoft.com/ivm/HDV... Image-guided optimization for interactive image manipulation; Dani Lischinski - Microsoft Research: A number of interactive image and video manipulation tasks may be carried out effectively through the use of an image-guided optimization framework.  These tasks include colorization of grayscale images and video, selective recoloring, local manipulation of various tonal values, and natural image matting. In all of these interactive tasks the user's intent is expressed as a set of sparse soft constraints, and an image-guided penalty functional is minimized subject to these constraints.  The penalty functional is quadratic in its variables, and thus has a unique minimum that may be obtained by solving a sparse linear system.