I. Introduction
More than a quarter of the world's population use Chinese characters in daily communication, and the study of Chinese character using computer technology has gained increasing attention in recent years. Among them, Chinese character skeleton extraction is one of the more popular research points. The Chinese character skeleton is an important feature of the Chinese character image. A good Chinese character skeleton can ignore the complexity of strokes while maintaining the structural information between characters, expressing the position and proportion information of the strokes. The skeleton carries key information for shape recognition, especially for extracting stroke structures.