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Table 3 Data characteristics of all caves of Tongji Rockery (numbers in parentheses correspond to the subplots in Fig. 16)

From: Cave feature extraction and classification from rockery point clouds acquired with handheld laser scanners

Phase

Class

Wo

Xiu

Dong

Huan

Count

 

7

12

10

12

Thickness (mm)

Min

29 (a-1)

29 (b-8)

70 (c-6)

50 (d-1)

Max

120 (a-2)

178 (b-4)

1070 (c-10)

320 (d-2)

Perimeter (mm)

Min

301 (a-5)

282 (b-6)

100 (c-1)

211 (d-7)

Max

1370 (a-2)

1227 (b-4)

3440(c-7)

1092 (d-3)

Area (mm2)

Min

4595(a-1)

2306 (b-9)

373 (c-4)

527 (d-7)

Max

97,415 (a-2)

63,110 (b-1)

277,891 (c-7)

29,852 (d-12)