一种基于对偶生长的线条抽取技术

AN APPROACH TO LINES EXTRACTION BASED ON DUALLY GROWING

文中给出了一种新的线条特征抽取方法，它是基于对偶生长思想，即以同类方向的边缘像素为作用对象，通过标识和搜索，逐步生长出一根根的线条。因以同类方向边缘像素为操作对象，故搜索空间可以大大缩小，另外，由于大搜索邻域的设置，这种方法对边缘中的断点和稀疏点更为有效。

In this paper, a new method for lines extraction is proposed. It is based on the idea of dually growing, that is, lines grow gradually out of its dual, a labeling and searching process on a directional edge map which results in small searching spaces. In addition, the definition of large neighborhoods for searching makes our approach more effective on broken and sparse edge pixels. Experimental results can give a positive show.