Graphic STI
logo EPFL
text EPFL
english only
Biomedical Imaging Group
Student Projects
EPFL > BIG > Teaching > Student Projects > Completed Projects > Lucas Amoudruz
CONTENTS

Home page

News & Events

Seminars

People

Research

Publications

Tutorials & Reviews

Recent Talks

Demos

Download Algorithms

Jobs and Trainees

Teaching

Student Projects

Intranet

Rening leg-movement extraction in high-speed videos of insect locomotion

Lucas Amoudruz
Semester Project

Section of Mathematics, EPFL

July 2014

 

Abstract

Image segmentation is widely used in Biology. Active contours (commonly called snakes) are efficient tools in this domain, and work well if they are close. Nevertheless, open snakes are more adapted for particular shapes, as fly legs, but often make loops or have undesired behaviors. The goal of this project was to design efficient methods to avoid these behaviors, as new snake energies or new conditions. It can be improved by first computing the distance transform of the input image. This method is efficient in most cases, but still allows loops in particular case. One can then develop a condition to avoid loops, which gives good results. Finally, for sequences of images, we used a 'movement' energy which tends to keep a good parameterization of the snake.

© 2022 EPFL • webmaster.big@epfl.ch • 11.08.2022