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).

CharacteristicsCrack 1Crack 2Crack 3Crack 4

Single crack
 Crack area4175
 Fitted long axis499
 Fitted short axis53
 Azimuth (°)-81.9
 Crack perimeter1385
 Equivalent radius36.5
Multicrack
 Crack area1650418882771942
 Fitted long axis435418193301
 Fitted short axis53111115
 Azimuth (°)-79.3-73.64.4-70.2
 Crack perimeter1096816338679
 Equivalent radius72.524.59.525