Research Article
An Improved C-V Model and Application to the Coal Rock Mesocrack Images
Table 2
Two-dimensional information of the crack (unit: pixel).
| Characteristics | Crack 1 | Crack 2 | Crack 3 | Crack 4 |
| Single crack | | | | | Crack area | 4175 | | | | Fitted long axis | 499 | | | | Fitted short axis | 53 | | | | Azimuth (°) | -81.9 | | | | Crack perimeter | 1385 | | | | Equivalent radius | 36.5 | | | | Multicrack | | | | | Crack area | 16504 | 1888 | 277 | 1942 | Fitted long axis | 435 | 418 | 193 | 301 | Fitted short axis | 53 | 11 | 11 | 15 | Azimuth (°) | -79.3 | -73.6 | 4.4 | -70.2 | Crack perimeter | 1096 | 816 | 338 | 679 | Equivalent radius | 72.5 | 24.5 | 9.5 | 25 |
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