Journal of Geographic Information System, 2010, 2, 93-99
doi:10.4236/jgis.2010.22014 Published Online April 2010 (http://www.SciRP.org/journal/jgis)
Copyright © 2010 SciRes. JGIS
Remote Sensing and GIS as an Advance Space Technologies
for Rare Vegetation Monitoring in Gobustan State
National Park, Azerbaijan
Yelena M. Gambarova
1
, Adil Y. Gambarov
2
, Rustam B. Rustamov
3
, Maral H. Zeynalova
4
1
R.I.S.K. Company, Baku, Azerbaijan
2
SAHIL IT Company, Baku, Azerbaijan
3
Institute of Physics of the National Academy of Sciences, Baku, Azerbaijan
4
Institute of Botany of the National Academy of Sciences, Baku, Azerbaijan
E-mail: elenag@risk.az, AGambarov@sahil.info
Abstract
This paper describes remote sensing methodologies for monitoring rare vegetation with special emphasis on
the Image Statistic Analysis for set of training samples and classification. At first 5 types of Rare Vegetation
communities were defined and the Initial classification scheme was designed on that base. After preliminary
Statistic Analysis for training samples, a modification algorithm of the classification scheme was defined:
one led us to creating a 4 class’s scheme (Final classification scheme). The different methods analysis such
as signature statistics, signature separability and scatter plots are used. According to the results, the average
separability (Transformed Divergence) is 1951.14, minimum is 1732.44 and maximum is 2000 which shows
an acceptable level of accuracy. Contingency Matrix computed on the results of the training on Final classi-
fication scheme achieves better results, in terms of overall accuracy, than the training on Initial classification
scheme.
Keywords: Remote Sensing, GIS, Seperability, Classification
1. Introduction
The vegetation is one of the key and best instrument and
indicator for monitoring of identification of impacts of
the natural processes, environmental and ecological is-
sues. As changes in vegetation are rapid and serious due
to various human activities, it is urgent to monitor vege-
tation and their surrounding environment from physical,
biological or social viewpoints. Remote sensing is ex-
pected to provide us an efficient tool for monitoring vege-
tation environment. In particular, as considering vegeta-
tion is often characterized by a mixture of different vege-
tations, soil and water, remote sensing is expected to
delineate the relation between them.
This paper describes Remote Sensing and GIS as an
advance Space Technology for Rare Vegetation moni-
toring in Gobustan State National Park with special em-
phasis on Image Statistic Analysis for set of training
samples and classification.
Determination of the ‘best’ bands combinations in the
context of Image statistical analysis is very important.
The best band combinations will be used in accurate
classification. Methods used to select the optimum bands
combination are known as feature selection techniques.
A number of criteria can be used to categorize feature
selection techniques. As they can be classified on the
basis of whether they are graphical or statistical in nature
[1], they can also be classified into two categories based
on whether or not they use classification algorithms to
evaluate the performance of subsets. Techniques that use
the former approach are called ‘wrapper techniques’;
techniques using the latter approach are known as ‘filter
techniques’ [2].
A filter is defined as a feature selection algorithm using
a performance metric based entirely on the training data,
without reference to the classifier for which the features
are to be selected. The most widely used filter methods
are based on class separability indices. Use of this ap-
proach in the context of Image statistical analysis was
investigated in this study. Class Separability indices were
employed to determine the best band combination of
SPOT 5 image datasets.