Table 1. Landcover Categories in the small study sites on Ground Truth Map k:
(Unit:%) NK
A(k
Study area-l | area-21 | area-22 | area-31 | area-32 | area-33 | area-5 sit
Sites Bid
sit
Paddy 0 20.6 0 1.2 1.0 1.2 0
Forest 32.7 69.1 91.8 37.2 47.7 68.8 44.6 an
Upland 5551 3.1 3.8 42.7 30.0 5.5 30.4 act
si
Waste 0 3.8 0 5.3 3.3 0 6.3 la!
Water 0 0 0 0 0 0 0 by
es:
Residence 1l. 343 4.4 13.6 12.9 24.5 18.7 es
Ground 0 0 0 0 5,1 0 0
Total 100.0 100.0 100.0 100.0 100.0 100.0 .1- 100.0
th
Table 2. Estimation Root Mean Square Errors of Landcovers pr
in study sites (Unit:$) qu
Study | area-1 | area-21 | area-22 | area-31 | area-32 | area-33 | area-5 of
Sites li
to
RMSE 5.4 5.2 3.5 5,7 4.6 1.8 5.0 t
N(k) 2
>, (A(K,i) — Ar(k, 1) fe
ie 1)
RMSE(k) = -
us IN (Kk) us
in
k: Study Site ID fo
N(k): Number of landcovers in the study site (k) 2
A(k,i): Estimated area ratio of landcover(i) in the study site(k) )
by the decomposition of mixed data es
Ar(k,i):Actual area ratio of landcover(i) in the study site(k) de
3)
la
Table 3. Effect of introducing the estimated area ratios of Ba
landcovers as a priori probabilities in study sites of
(Unit:$) li
4)
Study area-l | area-21 | area-22 | area-31 | area-32 | area-33 | area-5 es
Sites St
RMSE-A 7.075 2.10 2.48 6.93 7.78 7.40 6.22 tr
5)
RMSE-B 2.45 2.24 0.92 3.36 3.37 1.58 2.54 fc
si
RMSE-A: Maximum Likelihood Classifier with even a prioprobabilities of landcovers 6)
RMSE-B: Bayes' Classifier with estimated a priori probabilities of landcovers tr
la
4.Effect of introducing the estimated area classification errors were evaluated by the 7)
ratios of landcovers as RMSE as shown in the following equation. us
a priori probabilities ne AV
The effect of introducing the estimated area : > AN,
! RE is X, (Alk, i) — Ar(k, i))
ratios of landcovers as a priori probabilities ; Se
i=1
for the Bayes' classifier is shown in Table 3. RMSE(k) Em N(k) Je
The digitized ground truth map was compared ir
with the classification results. The ac
Tc
996
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B3. Vienna 1996