Applied Geomatics
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Assessment of cartographic potential of EgyptSat-1 satellite image (case study in flat areas)
Applied Geomatics - Tập 3 - Trang 159-169 - 2011
Egypt has launched its first Earth remote sensing satellite EgyptSat-1 in 2007.
A series of evaluations of the usefulness and limitations of EgyptSat-1 images
for different applications are required. This research is concerned with the
investigation of the geometric and cartographic potential of EgyptSat-1 image in
order to know to what scale EgyptSat-1 image is suitable for map production and
map...
Method for assessing spectral indices efficiency for mapping tropical wetlands—SIA_MW
Applied Geomatics - Tập 15 - Trang 829-851 - 2023
A novel method for assessing spectral index efficiencies for landscape mapping
in tropical wetlands was formulated: spectral indices assessment for mapping
tropical wetlands (SIA_MW). SIA_MW consists of three stages: (1) identification
of covers that make up the landscape, (2) feature selection consistency
assessment, and (3) result validation. These stages are evaluated based on six
criteria, eac...
Characterizing land use-land cover changes in N’fis watershed, Western High Atlas, Morocco (1984–2022)
Applied Geomatics - - Trang 1-15 - 2024
The examination of changes in land use and land cover (LULC) holds a pivotal
role in advancing our comprehension of underlying processes and mechanisms. The
advancement of sophisticated earth observation programs has opened unprecedented
opportunities to meticulously observe geographical areas, courtesy of the vast
array of satellite imagery available across time. However, effectively analyzing
th...
Experimental studies for the definition of 3D geospatial web services
Applied Geomatics - Tập 5 - Trang 59-71 - 2012
The importance of geospatial information delivery, across Internet, is
increasing more and more. But if, some years ago, visualizing 2D geographic
information inside Internet browsers, extracted by HTTP servers supported by map
servers (WebGIS applications) was satisfying, today users would acquire 3D
information especially in some case or sectors as urban planning, environmental
control, real est...
Performance evaluation of state-of-the-art multimodal remote sensing image matching methods in the presence of noise
Applied Geomatics - - Trang 1-19 - 2024
To date, various image registration approaches have been conducted to deal with
distortions between multimodal image pairs. However, significant existing noise
as an unavoidable issue deteriorates many conventional and advanced methods. The
critical key is to choose a highly robust local feature detection and
description method as the principle for many matching frameworks. However, few
studies ha...
Location mapping and spatial analysis to reduce the risk of the disappearance of a past artefact (gypsum ceilings in Piedmont)
Applied Geomatics - Tập 3 - Trang 123-135 - 2011
It is well ascertained that many geomatic tools are assumptions for the
preservation and development of cultural heritage (CH) and their environments.
This paper intends to point out the accessibility of location mapping in order
to represent complex phenomena by means of geographic information system (GIS)
and the chance to perform spatial analyses intended to provide new readings
concerning spat...
GIS-based spatial prediction of poor-drainage areas using frequency ratio: a case study of Tekirdag Province, Turkey
Applied Geomatics - Tập 14 Số 2 - Trang 369-386 - 2022
The present study aims to identify the distribution and the sensibility ratios
of the poorly drained areas of Tekirdag Province. GIS-based frequency ratio (FR)
was used to detect areas that are likely to limit agricultural production due to
poor drainage. Sensitive areas were identified and classified using
susceptibility analysis. Spatial features were calculated and mapped using FR by
combining ...
Elicitation of erosional signature of a tropical river basin with high-resolution stereo data
Applied Geomatics - Tập 6 - Trang 149-157 - 2014
The launch of Cartosat-1 turns into a new era for user communities of remote
sensing and mapping. Generation of digital elevation model (DEM) of a particular
geographic region of interest is the primary goal and advantage of Cartosat-1
mission. To generate the most accurate DEM from Cartosat-1 stereo data, 34 GCP
points were used, and 122 tie points are automatically extracted with the aid of
LPS-...
Co-registration of aerial photogrammetric and LiDAR point clouds in urban environments using automatic plane correspondence
Applied Geomatics - Tập 5 - Trang 155-166 - 2013
The co-registration process between light detection and ranging point clouds and
photogrammetric digital surface models data is analyzed and a semi-automated
solution is implemented. For a robust 3D geometric transformation between the
two datasets in an urban environment, both planes and points are used.
Initially, planes are chosen as the co-registration primitives. A region-growing
algorithm ba...
Flash flood hazard assessment in the Amlog Valley Basin, North-West Galala City, Egypt, based on a morphometric approach
Applied Geomatics - - Trang 1-14 - 2023
One of the natural threats that arises as a result of temporary surface runoff
is flooding, which has a large amount of solid material, a high level of water
in the streams, a sudden appearance, and a rapid flow velocity. The Wadi Amlog
Basin is characterized by the lack of rain and the prevalence of drought, but it
is exposed to sudden rains that lead to surface runoff in its dry valleys in a
way...
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