A Template‐matching Approach Combining Morphometric Variables for Automated Mapping of Charcoal Kiln Sites
A Template‐matching Approach Combining Morphometric Variables for Automated Mapping of Charcoal Kiln Sites
复制标题
结合形态变量的模板匹配方法用于木炭窑址的自动绘图
DOI：
10.1002/arp.1497
复制
发表时间：
2015
影响因子：
1.8
通讯作者：
T. Raab
中科院分区：
文献类型：
--
作者：
A. Schneider;M. Takla;A. Nicolay;A. Raab;T. Raab
分析人为地形结构的空间分布有助于了解过去的土地利用系统。通过自动测绘例程，可以从高分辨率数字地形模型 (DTM) 中有效检测小型地形。在这项研究中，我们描述了一种通过机载激光扫描 DTM 自动绘制木炭窑场地图的方法。该研究地点位于德国科特布斯北部，之前的考古调查记录了那里有一个非常大的历史木炭生产场。本研究的目标是实施、评估和改进基于 GIS 的自动化例程，用于根据模板匹配原理绘制这些特征。除了 DTM 之外，还评估了不同的形态测量变量是否适合检测窑址。测绘结果根据考古发掘和手动数字化记录的窑址综合数据库进行了验证。使用合成 DTM 评估了不规则窑场几何形状和 DTM 噪声的影响。合成 DTM 映射的结果表明，模板匹配结果根据映射过程中使用的形态变量而有所不同。根据这一观察，对现场映射程序的验证表明可以改进特征映射。特别是，使用形态测量变量的组合可以减少错误检测的数量。对于验证区域，使用自动化程序绘制了直径至少 10 m 的窑址，检测率接近手动数字化的检测率。因此，所描述的方法可以极大地促进特定景观中突出的窑址或类似小浮雕形式的绘图和分布分析。版权所有 © 2014 约翰·威利父子有限公司
Analysing the spatial distribution of anthropogenic relief structures can contribute to the understanding of past land‐use systems. With automated mapping routines, small relief forms can be detected efficiently from high‐resolution digital terrain models (DTMs). In this study, we describe an approach for the automated mapping of charcoal kiln sites from an airborne laser‐scanning DTM. The study site is located north of Cottbus, Germany, where an exceptionally large historic charcoal production field has been documented in previous archaeological surveys. The goal of this study was to implement, evaluate and improve an automated GIS‐based routine for mapping these features based on the template‐matching principle. In addition to the DTM, different morphometric variables were evaluated for their suitability to detect kiln sites. The mapping results were validated against a comprehensive database of kiln sites recorded from archaeological excavations and via manual digitization. The effects of irregular kiln‐site geometry and DTM noise were evaluated using synthetic DTMs. The results of the synthetic DTM mapping show that the template‐matching results differed depending on the morphometric variable used for the mapping process. In accordance with this observation, a validation of the mapping procedure for the field site suggests that feature mapping can be improved. In particular, the number of false detections can be reduced using a combination of morphometric variables. For the validation area, the kiln sites with diameters of at least 10 m were mapped using the automated routine, with detection rates that were close to those of manual digitization. Therefore, the described method can considerably facilitate the mapping and distribution analysis of kiln sites or similar small relief forms that are prominent in a specific landscape. Copyright © 2014 John Wiley & Sons, Ltd.