“…For example, a large collection of spike-driven vision sensors have been reported, such as sensors for luminance (Culurciello et al, 2003; Chen et al, 2011), temporal contrast (Barbaro et al, 2002; Mallik et al, 2005; Chan et al, 2007a; Lichtsteiner et al, 2008; Leñero-Bardallo et al, 2011; Posch et al, 2011; Serrano-Gotarredona and Linares-Barranco, 2013), motion (Kramer, 1996; Sarpeshkar et al, 1996; Ozalevli and Higgins, 2005), and spatial contrast (Ruedi et al, 2003; Zaghloul and Boahen, 2004; Costas-Santos et al, 2007; Massari et al, 2008; Leñero-Bardallo et al, 2010). Spike-driven principles have also been used for auditory systems (Sarpeshkar et al, 2005; Wen and Boahen, 2006, 2009; Chan et al, 2007b), competition and Winner-Take-All networks (Indiveri, 2000; Chicca et al, 2007; Oster et al, 2008), learning (Mill et al, 2011), classification (Mitra et al, 2009), fall detection (Fu et al, 2008), and systems distributed over wireless sensor networks (Teixeira et al, 2005; Massari et al, 2008).…”