## Speaker:

Brendan McCane - Department of Computer Science

## Title:

Robust Estimation for Structure Computation

## Location:

Owheo 106 - 1:00 pm, Friday 12 September

## Abstract:

Computing the three-dimensional structure of scenes from multiple images requires the same scene points to be identified in those images. This is the correspondence problem and is a fundamental problem to most computer vision applications. Correspondence errors are often caused by point mismatches (called outliers) and are typically non-Gaussian in nature. This means that standard least squares methods will not work very well. Robust methods are able to handle outliers and RANSAC (and its variants) is the go-to method for structure computation and as far as I know is universally used. In this talk I will show that an alternative to RANSAC, called case deletion, is just as accurate and often significantly faster than RANSAC, and is more appropriate for real time applications.