 Master Plan of the environmental threats of a Hotel construction site - Ikos Odissia Corfu - Greece.The construction of the "Ikos Odissia" Hotel in Corfu, Greece, marks an exciting development for the tourism industry in the region. However, every construction project, regardless of its significance, brings with it a set of environmental threats that must be addressed responsibly. This master plan outlines the key environmental concerns associated with the construction of Ikos Odissia Hotel and provides a comprehensive strategy for mitigating these threats. |  Industrial Heritage Master PlanGuardians of the past, industrial sites testify to the ordeals and exploits of those who worked in them. Industrial sites are important milestones in the history of humanity, marking humanity's dual power of destruction and creation that engenders both nuisances and progress. |  Shaded Relief Mapping |  Gratini Dam - GreeceUnderstanding the impact of dam-triggered land use/land cover change |  Expropriation Orthophoto MapThe dynamics of urban expansion and its impacts on land use/land cover change and small-scale farmers living near mining areas. |  Open Pit Mining LandUse ChangesLand use/land cover changes in the mining area of coal fields of Northern Greece. |
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 Lignite Center of Western MacedoniaLand use/land cover change dynamics analysis in mining areas of Lignite Center of Western Macedonia - Greece. |  Vereggarria Renovation Project - CyprusDrone Mapping Photogrammetry and Orthophoto produce in Vereggarria abandonent settlement in Cyprus. |  Geological Map of Athos Peninsula |  Lignite Deposits in Megalopoli basin |  Traffic Noise PredictionPrediction, Calculation and Mapping Road Traffic Noise in Asteras Vouliagmeni Bungalows and Resort. |  Pm10 EstimationEstimate PM10 concentration due to a large renovation project in Asteras Hotels and Resort (Vouliagmeni - Greece). |
 Open Pit Mining True Orho MappingGeomatics for Rehabilitation of Mining Area. |  Potentiometric SurfacePotentiometric Surface and Water-Level Difference Maps of Selected Confined Aquifers in Northern Greece. |  Geomorphology MappingTerrain cartography as an essential aspect of physical geography. |  Geologic MappingGeological Web-Gis of Egnatia Motorway |  Hydrolithology MappingCreation of a Digital Aquifer Permeability Map for the Chalkidiki watershed in North Greece. |  Geologic MappingGeologic Mapping for water quality project. The case of Eleftheres watershed. North Greece. |
 Noise EstimationNoise Estimation Mapping due to large Renovations Project. |  Landfill 3D VisualisationIntergrated GIS, Fuzzy Logic and AHP in modelling Optimum Sites for Landfill Selection. |  Watershed Conductivity and SalinityUrban Watersheds: Geology, Contamination, and Sustainable Development |  Hazard Risk MappingIntergrated GIS, Fuzzy Logic and AHP in modelling Optimum Sites for Landfill Selection. |  Geologic MappingHydrothermal alteration zones detection in Limnos Island through remote sensing. |
Digital Elevation Models
In last decades, the digital elevation models (DEM) and related technology has laid the cornerstone for engineering design projects worldwide. The Dem simulates the surface of the earth in corresponding real world coordinates and in salient feature recognition. By combining the Dem with spatial analysis and design software, users are able to project their physical presence onsite. Elevation data is especially critical for the engineering design of infrastructure, whether it is site specific or a pipeline. We extract precise elevation data using photogrammetric techniques in order to create Digital Elevation Models, Digital Terrain Models and topographic maps.
Stereo photogrammetry
Photogrammetry is the science of making measurements from photographs, especially for recovering the exact positions of surface points.
It may also be used to recover the motion pathways of designated reference points on any moving object, on its components, and in the immediately adjacent environment.
Photogrammetric analysis may be applied to one photograph, or may use high-speed photography and remote sensing to detect, measure and record complex 2-D and 3-D motion fields. Photogrammetry feeds measurements from remote sensing and the results of imagery analysis into computational models in an attempt to successively estimate, with increasing accuracy, the actual, 3-D relative motions within the researched field.
Structure from motion
Structure from motion (SfM) is a photogrammetric range imaging technique for estimating three-dimensional structures from two-dimensional image sequences that may be coupled with local motion signals.
It is studied in the fields of computer vision and visual perception. In biological vision, SfM refers to the phenomenon by which humans (and other living creatures) can recover 3D structure from the projected 2D (retinal) motion field of a moving object or scene.
Case Study
Surveying and mapping drones
To produce 3D maps or 3D models from Uav photogrammetry, the digital camera is mounted on the drone and is usually pointed vertically towards the ground. Using photogrammetry to create 3D models of monuments or statues, the camera is mounted horizontally on the UAV.
Multiple overlapping photos (80% to 90% overlap) of the ground or model are taken as the UAV flies along an autonomous programmed flight path called a waypoint.
The final photos should be as clear as possible. Eliminate everything standing in the way of maximum sharpness. This is where more megapixels actually matters. Shooting in RAW definitely helps.
Lighting is always important in photography. Bright, even lighting will allow you to have a small aperture to reduce the image’s depth of field. Shallow depth-of-field is actually a bad thing for photogrammetry, because blurred details confuse the software. The final goal is to have high-detail, sharp, and flat imagery, with low ISO values and high shutter speed which reduces motion blur.
