Volume 10, Number 3

Mixtures of Trained Regression Curves Models for Handwritten Arabic Character Recognition


Abdullah A. Al-Shaher, Public Authority for Applied Education and Training, Kuwait


In this paper, we demonstrate how regression curves can be used to recognize 2D non-rigid handwritten shapes. Each shape is represented by a set of non-overlapping uniformly distributed landmarks. The underlying models utilize 2nd order of polynomials to model shapes within a training set. To estimate the regression models, we need to extract the required coefficients which describe the variations for a set of shape class. Hence, a least square method is used to estimate such modes. We proceed then, by training these coefficients using the apparatus Expectation Maximization algorithm. Recognition is carried out by finding the least error landmarks displacement with respect to the model curves. Handwritten isolated Arabic characters are used to evaluate our approach


Shape Recognition, Arabic Handwritten Characters, Regression Curves, Expectation Maximization Algorithm