Histograms of Oriented Gradients is used for feature detection. This is the primary paper on HOGs. This presentation discusses HOGs.
A nice presentation on Random Forests and Ferns.
This post collects the references I've looked at for this project. So far, I'm only skimming the abstracts.
Video Character Recognition Through Hierarchical Classification
Text Detection in Natural Scene Images by Stroke Gabor Words
Enhanced Active Contour Method for Locating Text
A New Feature Optimization Method Based on Two-directional 2DLDA For Handwritten Chinese Character Recognition
Efficient Cut-off Threshold Estimation for Word Spotting Applications
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