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Summary table of the shape features considered in this study (see Appendix A for the mathematical definitions and formulae).
| Group | Name | Acronym/Abbreviation |
|---|---|---|
| Conventional | Maximum 3D diameter | Max3Ddiam |
| Surface area | SurfArea | |
| Voxel volume | Volume | |
| Form factors | Angelidakis elongation | AEL |
| Angelidakis flatness | AFL | |
| Angelidakis compactness | ACO | |
| Kong elongation | KEL | |
| Kong flatness | KFL | |
| Maximum projection sphericity | MPS | |
| Other | Sphericity | - |
| Volume density | VDN |
