Semiautomatic tree ring segmentation using Active Contours and an optimised gradient operator
Semiautomatic tree ring segmentation using Active Contours and an optimised gradient operator
复制标题
DOI：
10.2478/forj-2014-0020
复制
发表时间：
2014-09-01
影响因子：
1.6
通讯作者：
Sloboda, Branislav
中科院分区：
文献类型：
--
作者：
Henke, Michael;Sloboda, Branislav
本文提出了一种简单有效的方法，完全从树木年轮图像中提取树木年轮。该方法使用活动轮廓，通常用于医学图像处理来检测器官，结合基于Sobel算子的优化图像滤波器来自动勾勒树木年轮。特别注意消除由分支、裂缝或着色引起的关键物理不规则性。这项工作的结果是实现了一个独立于平台的、免费的开源软件解决方案，用于半自动树木年轮分割。与人工测量的比较表明，该系统是可靠的，结果是可重复的。该系统已被应用到几个针叶树种。
This paper presents an easy and effective method to extract tree rings completely from images of tree discs independent of their source. The method uses Active Contours, often used in medical image processing to detect organs, in combination with an optimised image filter based on the Sobel operator to automatically outline the tree rings. Special attention is given to eliminate critical physical irregularities caused by branches, cracks or colourisations. The work resulted in the implementation of a platform independent, free and open source software solution for semiautomatic tree ring segmentation. Comparison to manual measurements shows that the system is dependable and the results are reproducible. The system has been applied to several conifer species.