Recognizing planar symbols with severe perspective deformation.

Li, Linlin; Tan, Chew Lim · IEEE Trans Pattern Anal Mach Intell · 2010

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Abstract

A common problem encountered in recognizing real-scene symbols is the perspective deformation. In this paper, a recognition method resistant to perspective deformation is proposed, based on Cross-Ratio Spectrum descriptor. This method shows good resistance to severe perspective deformation and good discriminating power to similar symbols.