首页> 外文学位 >Automated procedures for quantification of rhizosphere physical properties in micro CT images.
【24h】

Automated procedures for quantification of rhizosphere physical properties in micro CT images.

机译:自动化程序,用于定量显微CT图像中的根际物理性质。

获取原文
获取原文并翻译 | 示例

摘要

The rhizosphere, i.e. the zone of soil immediately surrounding plant roots plays a prominent role in supplying plants with water and nutrients. However, surprisingly little is known about rhizosphere physical properties and how they affect root growth, water and nutrient uptake. The lack of non-invasive and non-destructive imaging techniques necessary to observe living roots growing in undisturbed soil have been a main reason for this shortcoming. Recent advances in synchrotron X-ray micro tomography (CMT) provide the potential to directly observe soil physical properties around living roots in-situ. In this work we develop procedures for assisting scientist to study the soil properties by visualizing and automatically processing micro CT images. Specifically image de-noising in the wavelet domain is performed for convenient profiling and segmentation is applied for automated calculation of soil properties. As new measures we proposed the normalized radial and circular aggregation and water transportability and also have shown ways of generalizing the studies for 3D.
机译:根际,即紧邻植物根部的土壤区域,在为植物提供水和养分方面起着重要作用。然而,令人惊讶的是,对根际物理性质及其如何影响根系生长,水分和养分吸收的了解很少。缺乏观察未受干扰的土壤中生长的活根所必需的非侵入性和非破坏性成像技术的主要原因是这一缺点。同步加速器X射线显微层析成像(CMT)的最新进展为直接观察活根周围土壤的物理特性提供了潜力。在这项工作中,我们开发了通过可视化和自动处理微型CT图像来协助科学家研究土壤特性的程序。具体而言,为了方便分析而在小波域中执行图像降噪,并将分段应用于土壤性质的自动计算。作为新措施,我们提出了归一化的径向和圆形聚集以及水传输能力,并且还展示了推广3D研究的方法。

著录项

  • 作者单位

    University of Nevada, Las Vegas.;

  • 授予单位 University of Nevada, Las Vegas.;
  • 学科 Engineering Computer.Engineering Environmental.Engineering Electronics and Electrical.
  • 学位 M.S.E.E.
  • 年度 2010
  • 页码 56 p.
  • 总页数 56
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号