Fig. 6
From: Quality visual landmark selection based on distinctiveness and repeatability
![Fig. 6](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40648-015-0036-9/MediaObjects/40648_2015_36_Fig6_HTML.gif)
Serial number of landmark/local feature region vs. variation coefficient by method (a). There are nearly no quality difference between the selected landmarks and the local feature region