关键词: 连通域, 最小二乘, 无约束, 手写体汉字切分

Abstract: A new optimal model based on connected components is proposed，with which the breadth of parts，single characters and joined characters can be self-adaptive confirmed.In addition，weighted k-mean method is used to divide joined characters.The whole method not only improves self-adaptive ability，but also improves the veracity of segmentation.By analysis，this method has satisfactory performance for segmentation of handwritten Chinese character.

Key words: connected components, least squares, unconstrained, handwritten Chinese character segmentation