Image Representation with Bag of bi-SIFT. - Ignazio Infantino; Filippo Vella; Giovanni Spoto; Salvatore Gaglio (SITIS, 2009)

bi-SIFT: Towards a semantically relevant local descriptor. - Ignazio Infantino; Filippo Vella; Giovanni Spoto; Salvatore Gaglio (J. Multim. Process. Technol., 2010)