Recognizing Planar Symbols with Severe Perspective Deformation
Linlin Li, Chew Lim Tan · IEEE Transactions on Pattern Analysis and Machine Intelligence · 2009
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.