4 papers
Prediction of progressive lens performance from neural network simulations
Alexander Leube, Lukas Lang, Gerhard Kelch +1
Purpose: The purpose of this study is to present a framework to predict visual acuity (VA) based on a convolutional neural network (CNN) and to further to compare PAL designs. Meth…
A Numerical Framework for Efficient Motion Estimation on Evolving Sphere-Like Surfaces based on Brightness and Mass Conservation Laws
Lukas F. Lang
In this work we consider brightness and mass conservation laws for motion estimation on evolving Riemannian 2-manifolds that allow for a radial parametrisation from the 2-sphere. W…
A Dynamic Programming Solution to Bounded Dejittering Problems
Lukas F. Lang
We propose a dynamic programming solution to image dejittering problems with bounded displacements and obtain efficient algorithms for the removal of line jitter, line pixel jitter…
Optical Flow on Evolving Sphere-Like Surfaces
Lukas F. Lang, Otmar Scherzer
In this work we consider optical flow on evolving Riemannian 2-manifolds which can be parametrised from the 2-sphere. Our main motivation is to estimate cell motion in time-lapse v…