融合影像纹理、光谱与地形特征的森林冠顶高反演模型

高凯旋, 焦海明, 王新闯

Inversion model of forest canopy height based on image texture,spectral and topographic features

GAO Kaixuan, JIAO Haiming, WANG Xinchuang

表4 各林型森林冠顶高反演模型及精度验证

Tab.4 High-inversion model and accuracy verification of forest crowns in different forest types

林型	指数	模型	R^2①	AdjR²	RMSE	独立验证
林型	指数	模型	R^2①	AdjR²	RMSE	R²	RMSE
阔叶林	MSR	$y = 28.798 + 5.38 E N_{RVI} - 28.32 S M_{B 3} - 2.458 E N_{ASP}$	0.75^*	0.72	1.93	0.65	2.56
	PLSR	$\begin{array}{l} y = 30.696 + 3.82 E N_{RVI} + 1.869 E N_{NDVI} - 0.049 M E_{MSAVI} - \\ 3.217 E N_{ASP} - 23.884 S M_{B 3} \end{array}$	0.75^*	0.70	1.94	0.75	2.36
	BP	—	0.86	—	1.46	0.76	1.6
针叶林	MSR	$y = 18.582 - 22.945 C C_{B 3}$	0.92^**	0.91	1.99	0.81	1.97
	PLSR	$y = 58.132 + 0.99 RVI - 406.121 B 3 - 21.719 H O_{RVI} - 9.176 C C_{B 3}$	0.96^**	0.93	1.46	0.79	1.78
	BP	—	0.99	—	0.73	0.97	1.35
针阔混交林	MSR	$y = 18.019 + 8.681 E N_{B 2} + 8.324 S M_{SLO} - 0.397 M E_{B 1}$	0.90^**	0.89	1.88	0.87	2.23
	PLSR	$\begin{array}{l} y = 18.289 + 5.567 E N_{B 2} + 2.673 E N_{B 3} + 0.534 E N_{NDVI} + \\ 7.135 S M_{SLO} + 61.514 B 2 - 0.44 M E_{B 1} \end{array}$	0.92^**	0.90	1.76	0.91	2.07
	BP	—	0.98	—	0.64	0.92	2.29