传统的分水岭算法的应用非常广泛,但是存在过分割的问题。通常有两类方法解决该问题。第一类是后处理方法,它的原理是根据分水岭分割后的结果,使用某种方法让一些区域合并在一起。第二类属于前处理方法,在应用传统分水岭算法之前先标记...传统的分水岭算法的应用非常广泛,但是存在过分割的问题。通常有两类方法解决该问题。第一类是后处理方法,它的原理是根据分水岭分割后的结果,使用某种方法让一些区域合并在一起。第二类属于前处理方法,在应用传统分水岭算法之前先标记提取,目前已经提出了基于标记的分水岭分割算法。这种方法虽然可以在一定程度上缓解传统分水岭算法的过分割问题,但是还是会有一定的过分割。文章在基于标记的分水岭算法的基础上,利用局部信息模糊C均值聚类算法(Fuzzy Local Information C-Means Clustering,FLICM)进行区域合并。实验结果表明:所提出的方法能有效地解决图像过分割问题,且更趋近于自然分割。展开更多
An effective damage test method based on a marker-based watershed algorithm with gray control(MWGC) is proposed to study the properties of damage induced by near-field laser irradiation for large-aperture laser facili...An effective damage test method based on a marker-based watershed algorithm with gray control(MWGC) is proposed to study the properties of damage induced by near-field laser irradiation for large-aperture laser facilities.Damage tests were performed on fused silica samples and information on the size of damage sites was obtained by this new algorithm,which can effectively suppress the issue of over-segmentation of images resulting from non-uniform illumination in darkfield imaging.Experimental analysis and results show that the lateral damage growth on the exit surface is exponential,and the number of damage sites decreases sharply with damage site size in the damage site distribution statistics.The average damage growth coefficients fitted according to the experimental results for Corning-7980 and Heraeus-Suprasil312 samples at 351 nm are 1.10 ± 0.31 and 0.60 ± 0.09,respectively.展开更多
文摘传统的分水岭算法的应用非常广泛,但是存在过分割的问题。通常有两类方法解决该问题。第一类是后处理方法,它的原理是根据分水岭分割后的结果,使用某种方法让一些区域合并在一起。第二类属于前处理方法,在应用传统分水岭算法之前先标记提取,目前已经提出了基于标记的分水岭分割算法。这种方法虽然可以在一定程度上缓解传统分水岭算法的过分割问题,但是还是会有一定的过分割。文章在基于标记的分水岭算法的基础上,利用局部信息模糊C均值聚类算法(Fuzzy Local Information C-Means Clustering,FLICM)进行区域合并。实验结果表明:所提出的方法能有效地解决图像过分割问题,且更趋近于自然分割。
文摘An effective damage test method based on a marker-based watershed algorithm with gray control(MWGC) is proposed to study the properties of damage induced by near-field laser irradiation for large-aperture laser facilities.Damage tests were performed on fused silica samples and information on the size of damage sites was obtained by this new algorithm,which can effectively suppress the issue of over-segmentation of images resulting from non-uniform illumination in darkfield imaging.Experimental analysis and results show that the lateral damage growth on the exit surface is exponential,and the number of damage sites decreases sharply with damage site size in the damage site distribution statistics.The average damage growth coefficients fitted according to the experimental results for Corning-7980 and Heraeus-Suprasil312 samples at 351 nm are 1.10 ± 0.31 and 0.60 ± 0.09,respectively.
