s="level1"><a href="#tut.covdet.descr">Computing descriptors</a></li>
<li class="level1"><a href="#tut.covdet.custom">Custom frames</a></li>
<li class="level1"><a href="#tut.covdet.ss">Getting the scale spaces</a></li>
</ul>
</div><!-- Table of contents -->


<p>This tutorial introduces the <code/><a href=../matlab/vl_covdet.html>vl_covdet</a></code> VLFeat command
implementing a number of co-variant feature detectors and
corresponding descriptors. This family of detectors
include <a shape="rect" href="../a