Background Radiance Estimation for Gas Plume Quantification for Airborne Hyperspectral Thermal Imaging

Table 1

Confusion matrix of the classifications performed on the synthetic refinery scene.

(a)

Material	Classes of the plume-absent area
	1	2	3	4	5
Green grass	3149	141	0	0	0
Brown sandy loam	3	15241	121	0	0
Olive green paint	0	15	3165	350	0
Asphalt	0	410	2543	999	0
Bare red brick	0	0	51	36	0
Concrete paving	0	206	1695	891	0
Slate stone shingle	0	380	220	3	0
Oxidized galvanized steel	14	686	734	198	0
Aluminum	0	0	0	0	709

(b)

Material	Classes of the plume-present area
	1	2	3	4
Brown sandy loam	5145	9	0	0
Asphalt	128	612	0	0
Bare red brick	0	29	0	0
Concrete paving	46	373	0	0
Copper	0	0	60	220
Aluminum	0	0	0	1418