基于无人机的喀斯特退化天坑地下森林树高特征研究

张永永,税伟,冯洁,孙祥,孙晓瑞,刘橼锰,李慧

Tree-height Characterization of Karst Degraded Tiankeng Underground Forests Using Unmanned Aerial Vehicles

yongyong Zhang,Wei Shui,Jie Feng,Xiang Sun,Xiaorui Sun,Yuanmeng Liu,Hui Li

表 1 退化天坑地下森林及地表样方树木株数提取精度

Table 1 Accuracy analysis of tree extraction in graded Tiankeng underground forest and surface samples

编号 ID	提取株树	目视解译株树	误判株树	漏判株树	精度
编号 ID	提取株树	目视解译株树	误判株树	漏判株树	总体精度 OA	错分精度 CE	漏分精度 OE
总计	2325	2304	154	133	95.34%	6.54%	5.51%
S1	189	180	16	7	95.00%	8.89%	3.89%
S2	198	210	7	19	94.29%	3.33%	9.05%
B	251	238	19	6	94.54%	7.98%	2.52%
SG1	218	238	2	22	91.60%	0.84%	9.24%
SG2	207	189	19	1	90.48%	10.05%	0.53%
SG3	247	252	16	21	98.02%	6.35%	8.33%
BG1	219	223	22	26	98.21%	9.87%	11.66%
BG2	193	178	18	3	91.57%	10.11%	1.69%
BG3	47	48	1	2	97.92%	2.08%	4.17%
BG4	279	274	7	2	98.18%	2.55%	0.73%
BG5	277	274	27	24	98.91%	9.85%	8.76%