Concepedia

Synthetic handwritten CAPTCHAs

Achint Thomas, Amalia Rusu, Venu Govindaraju

Pattern Recognition · 2009 · 52 citations · 14 references

DOI

References

14

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A transformation for extracting new descriptors of shape

H.E. Blum · Medical Entomology and Zoology · 1967 · 1.7K citations

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Models for the perception of speech and visual form

Robert S. Brubaker · Journal of Communication Disorders · 1968 · 1.3K citations

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Piecewise linear skeletonization using principal curves

Balázs Kégl, Adam Krzyżak · IEEE Transactions on Pattern Analysis and Machine Intelligence · 2002 · 217 citations

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<title>BaffleText: a Human Interactive Proof</title>

Monica Chew, Henry S. Baird · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003 · 170 citations

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