SketchPrint: Physical object micro-structure identification using mobile phones

This paper addresses the identification of physical objects based on their physical non-cloneable surface structures. These micro-structures are optically acquired using a hand held non-modified consumer mobile phone. Object identification is done with the SketchPrint descriptor, which combines fingerprint-like properties while having reasonable invariance to geometrical and lighting distortions due to its semi-local nature. Crucially, objects can be identified without any geometrical matching or final re-ranking procedure.