1. Frequency-tuned salient region detection;Achanta,2009
2. Freak: Fast retina keypoint;Alahi,2012
3. Road sign detection from edge orientation histograms;Alefs,2007
4. The tree of shapes of an image;Ballester;ESAIM: Control Optim. Calcul. Variations,2003
5. Surf: speeded up robust features;Bay;Computer vision–ECCV 2006,2006