Research On The Extraction Of Skeletons Of Regular Script Works Based On Feature Point Mapping

Chinese character strokes extracted as a key problem in computer calligraphy,The solution of the problem is of great importance to the inheritance of traditional calligraphy culture and the realization of computer calligraphy teaching.Current method of extracting Chinese characters is more single,more limited to the structure of the template matching or statistical.Basis of previous research,this thesis take regular script as an example,put a method which combine template matching and statistical method for Chinese character strokes extraction.Based on the in-depth study of the extraction of Chinese characters,proposed an method which skeleton stroke extraction based on feature point mapping.First,extracts the calligraphy experts to build the mapping template when writing the regular time set of information in the regular script.Then the optimized index table method is used to extract the skeleton of the regular script,and collected the feature points on the skeleton in the same time.The improved Coherent point drift registration algorithm is used to map the feature points between the template and the target,get the correspondence between them.According to the correspondence between the feature points,the standard strokes are extracted.In view of the shortcomings in the method of extracting the skeleton of the index table,an improved algorithm is proposed.The improved method utilizes the geometric topology of the "burr" in the extracted skeleton and the "distorted" part of the handover position to locate the "burr" and "distortion" and then use the corresponding method to remove and repair it.The improved point matching algorithm is used to map the extracted feature points.The coherent point drift registration method has a statistically significant soft assignment,which has good robustness to the mapping between non-rigid point sets.Based on the connectivity features of the Chinese character skeleton feature points,the points on the same branch are grouped into a class Feature points,increase the mapping accuracy.After the point mapping,the feature points on the skeleton are set up with the set of points in the template,so that the points on the skeleton can be merged into the same stroke according to the stroke attribution of the midpoint of the template.Experiments show that the method proposed in this paper has a good effect on the stroke of the regular script,and the algorithm has strong robustness.But since the regular script in the initial pretreatment may be difficult to achieve a more ideal state,so there is still much space for improvement.