Application of Geometry Rectification to Deformed Characters Recognition

摘要

Due to the complexity of text deformation, it brings great difficulties to the character recognition. In this paper, we propose an algorithm based on geometry rectification to identify the deformed characters, which improves the accuracy and recall rate of text recognition. In this method, the deformed character is rectified within a circle using the moments of deformed character, and then it can be recognized in real time by comparing the similarity of distance histogram and angle histogram. Experimental results show that the method based on affine invariant can recognize the English characters and numbers with a very high recognition rate.