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PAMI
2010

Recognizing Planar Symbols with Severe Perspective Deformation

8 years 9 months ago
Recognizing Planar Symbols with Severe Perspective Deformation
Abstract—A common problem encountered in recognizing symbols in real-scene images is the perspective deformation. In this paper, a recognition method resistant to perspective deformation is proposed. Particularly, a symbol is represented by a sequence of cross ratio spectra, in which perspective deformation is modeled as an uneven stretching deformation. Dynamic Time Warping algorithm is employed to compare the similarity of spectra and to find the pixel level correspondence between two symbols. The proposed method shows not only good resistance to severe perspective deformation and other common noise in real scene images, but also good discriminating ability to similar symbols.
Linlin Li, Chew Lim Tan
Added 29 Jan 2011
Updated 29 Jan 2011
Type Journal
Year 2010
Where PAMI
Authors Linlin Li, Chew Lim Tan
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