Special Astrophysics Seminar

How to add, how to subtract, and how to despeckle

Eran Ofek

Weizmann Institute of Science

I present optimal methods for image coaddition and subtraction that have many advantages over existing methodolgies. These methods are useful for many types of astronomical data analysis, beyond the field of image processing. Specifically, these techniques are optimal for any hypothesis testing or measurements, numerically stable and result in images which have uncorrelated noise. I will present these methods as well as their impact for deep surveys, transients search, and diffraction-limited imaging. This work is described in:
2015arXiv151206872Z
2015arXiv151206879Z
2016arXiv160102655Z