Mathematical Formula Automatic Location Method Based on Circular Projection Statistics
晓阳 彭 · Journal of Image and Signal Processing · 2013
The location of mathematical formulas is the first step to recognize mathematical formula.Only when the formula in the document image is located correctly, one can complete the following steps such as formula symbol recognition, formula document analysis and formula semantic analysis.According to the characteristics of Chinese characters, this paper presents a method for automatic extraction of mathematical formula based on circular projection statistics.This method firstly collects key information through projection, and then extracts the potential line.Finally, mathematical formulas are extracted using a series of constraint conditions.The experimental results show that the method proposed in this work offers correctness of the results at very low computational costs.