Yoon S M, Kuijper A. Human action recognition based on skeleton splitting[J]. Expert Systems With Applications,2013,40(17):6848-6855.[2] Liu W P, Jiang H B, Bai X, et al. Distance transform-based skeleton extraction and its applications in sensor networks[J]. IEEE Transactions On Parallel And Distributed Systems,2013,24(9):1763-1772.[3] 夏菁菁,高琳,范勇,等.基于骨架特征的人数统计[J].计算机应用,2014,34(2):585-588. Xia J J, G L, F X, et al. Peaple counting based on skeleton feature[J]. Journal of Computer Applications, 2014,34(2):585-588. (in Chinese)[4] 王卫星,田利平,王悦.基于改进的图论最小生成树及骨架距离直方图分割细胞图像[J].光学精密工程,2013,21(9):2464-2472. Wang W X, Tian L P, Wang Y. Segmentation of cell images based on improved graph MST and skeleton distance mapping[J]. Optics and Precision Engineering, 2013,21(9):2464-2472. (in Chinese)[5] 王平,张力,周长其.基于种子点的粘连巨噬细胞图像的分割方法[J].液晶与显示,2012,27(6):808-813. Wang P, Zhang L, Zhou C Q. Segmentation method to adhesion macrophage image based on seeding point[J]. Chinese Journal of Liquid Crystals and Displays,2012,27(6):808-813. (in Chinese)[6] Montero A S, Lang J. Skeleton pruning by contour approximation and the integer medial axis transform[J]. Computers & Graphics,2012,36(5):477-487.[7] Shen W, Bai X, Hu R, et al. Skeleton growing and pruning with bending potential ratio[J]. Pattern Recognition,2011,44(2):196-209.[8] 杨晨晖,刘聪.优化的梯度最短路径骨架提取算法[J].厦门大学学报(自然科学版),2014,53(2):201-205. Yang C H, Liu C. Skeleton extraction algorithm of optimized gradient path[J]. Journal of Xiamen University(Natural Science), 2014,53(2):201-205. (in Chinese)[9] 庄彩云,熊平.基于近似最小距离场的二维图像骨架提取方法[J].计算机工程与应用,2013,49(21):164-167. Zhuang C Y, Xiong P.2D image skeleton generation based on approximate minimum distance filed[J]. Computer Engineering and Applications,2013,49(21):164-167.(in Chinese)[10] 康文雄,邓飞其.利用模板和邻域信息的静脉骨架提取新算法[J].中国图象图形学报,2010,15(3):378-384. Kang W X, Deng F Q. A skeletonization method for vein patterns using template and neighbor information[J]. Journal of Image and Graphics,2010,15(3):378-384. (in Chinese)[11] 崔雪森,伍玉梅,戴阳,等.外部压力法(EPM)的二值图像骨架提取[J].计算机工程与应用,2013,49(13):138-141,227. Cui X S, Wu Y M, Dai Y, et al. Binary image skeleton extraction by External Pressure Method(EPM)[J]. Computer Engineering and Applications,2013,49(13):138-141,227. (in Chinese)[12] 颜廷秦,周昌雄,刘淑芬.一种距离场约束下的普适细化算法[J].南京大学学报(自然科学版),2013,49(2):189-195. Yan T Q, Zhou C X, Liu S F. A universal thinning algorithm restricted by distance[J]. Journal of Nanjing University(Natural Science),2013,49(2):189-195. (in Chinese)[13] 刘怡静,唐莉萍,曾培峰.基于向量内积的骨架提取算法[J].东华大学学报(自然科学版),2010,36(2):158-164. Liu Y J, Tang L P, Zeng P F. Skeleton extraction algorithm based on vector inner-product[J]. Journal of Donghua University(Natural Science),2010,36(2):158-164. (in Chinese)