Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand
This article compares measurements of particle shape parameters from three-dimensional (3D) X-ray micro-computed tomography (μCT) and two-dimensional (2D) dynamic image analysis (DIA) from the optical microscopy of a coastal bioclastic calcareous sand from Western Australia. This biogenic sand from...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Journal of Imaging |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-433X/8/3/72 |
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| author | Ryan D. Beemer Linzhu Li Antonio Leonti Jeremy Shaw Joana Fonseca Iren Valova Magued Iskander Cynthia H. Pilskaln |
| author_facet | Ryan D. Beemer Linzhu Li Antonio Leonti Jeremy Shaw Joana Fonseca Iren Valova Magued Iskander Cynthia H. Pilskaln |
| author_sort | Ryan D. Beemer |
| collection | DOAJ |
| description | This article compares measurements of particle shape parameters from three-dimensional (3D) X-ray micro-computed tomography (μCT) and two-dimensional (2D) dynamic image analysis (DIA) from the optical microscopy of a coastal bioclastic calcareous sand from Western Australia. This biogenic sand from a high energy environment consists largely of the shells and tests of marine organisms and their clasts. A significant difference was observed between the two imaging techniques for measurements of aspect ratio, convexity, and sphericity. Measured values of aspect ratio, sphericity, and convexity are larger in 2D than in 3D. Correlation analysis indicates that sphericity is correlated with convexity in both 2D and 3D. These results are attributed to inherent limitations of DIA when applied to platy sand grains and to the shape being, in part, dependent on the biology of the grain rather than a purely random clastic process, like typical siliceous sands. The statistical data has also been fitted to Johnson Bounded Distribution for the ease of future use. Overall, this research demonstrates the need for high-quality 3D microscopy when conducting a micromechanical analysis of biogenic calcareous sands. |
| first_indexed | 2024-03-09T19:35:34Z |
| format | Article |
| id | doaj.art-60e94ddf17cc4342b06377827b655c88 |
| institution | Directory Open Access Journal |
| issn | 2313-433X |
| language | English |
| last_indexed | 2024-03-09T19:35:34Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Imaging |
| spelling | doaj.art-60e94ddf17cc4342b06377827b655c882023-11-24T01:55:08ZengMDPI AGJournal of Imaging2313-433X2022-03-01837210.3390/jimaging8030072Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous SandRyan D. Beemer0Linzhu Li1Antonio Leonti2Jeremy Shaw3Joana Fonseca4Iren Valova5Magued Iskander6Cynthia H. Pilskaln7Department of Civil and Environmental Engineering, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USADepartment of Civil and Urban Engineering, New York University, New York, NY 10012, USADepartment of Computer and Information Science, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USACentre for Microscopy, Characterisation & Analysis, University of Western Australia, Crawley 6009, AustraliaDepartment of Civil Engineering, City, University of London, London EC1V 0HB, UKDepartment of Computer and Information Science, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USADepartment of Civil and Urban Engineering, New York University, New York, NY 10012, USASchool for Marine Science and Technology, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USAThis article compares measurements of particle shape parameters from three-dimensional (3D) X-ray micro-computed tomography (μCT) and two-dimensional (2D) dynamic image analysis (DIA) from the optical microscopy of a coastal bioclastic calcareous sand from Western Australia. This biogenic sand from a high energy environment consists largely of the shells and tests of marine organisms and their clasts. A significant difference was observed between the two imaging techniques for measurements of aspect ratio, convexity, and sphericity. Measured values of aspect ratio, sphericity, and convexity are larger in 2D than in 3D. Correlation analysis indicates that sphericity is correlated with convexity in both 2D and 3D. These results are attributed to inherent limitations of DIA when applied to platy sand grains and to the shape being, in part, dependent on the biology of the grain rather than a purely random clastic process, like typical siliceous sands. The statistical data has also been fitted to Johnson Bounded Distribution for the ease of future use. Overall, this research demonstrates the need for high-quality 3D microscopy when conducting a micromechanical analysis of biogenic calcareous sands.https://www.mdpi.com/2313-433X/8/3/72particle shapemicrotomographydynamic image analysis2D particle shape3D particle shapegranulometry |
| spellingShingle | Ryan D. Beemer Linzhu Li Antonio Leonti Jeremy Shaw Joana Fonseca Iren Valova Magued Iskander Cynthia H. Pilskaln Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand Journal of Imaging particle shape microtomography dynamic image analysis 2D particle shape 3D particle shape granulometry |
| title | Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand |
| title_full | Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand |
| title_fullStr | Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand |
| title_full_unstemmed | Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand |
| title_short | Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand |
| title_sort | comparison of 2d optical imaging and 3d microtomography shape measurements of a coastal bioclastic calcareous sand |
| topic | particle shape microtomography dynamic image analysis 2D particle shape 3D particle shape granulometry |
| url | https://www.mdpi.com/2313-433X/8/3/72 |
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