Variational-based segmentation of bio-pores in tomographic images
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- 作者：Benjamin Bauera ; Xiaohao Caib ; Stephan Pethc ; Katja Schladitza ; katja.schladitz@itwm.fraunhofer.de" class="auth_mail" title="E-mail the corresponding author ; Gabriele Steidld
- 关键词：3D image segmentation ; Bio-pores ; Root system ; Variational segmentation ; Total variation minimization ; Gray value thresholding ; Morphological segmentation
- 刊名：Computers & Geosciences
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：98
- 期：Complete
- 页码：1-8
- 全文大小：1006 K
文摘
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A variational method is used to segment the biopores in CT images of soil samples.
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Results are compared to indicator kriging, global thresholding, and extract holes.
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The variational method yields the smoothest and best connected system of large pores.
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Global thresholding is a competitive and objective alternative.