Photogrammetry as a science is among the earliest techniques of remote sensing. The word photogrammetry is the combination of three distinct Greek words ‘Photo’, ‘Gram’ and ‘metry’ which translated in English literally means, light, drawing and measurement respectively.

GeoPro IT offers a wide variety of photogrammetric services such as aerial photogrammetry and Digital Photogrammetric services to its clients worldwide. The aerial photogrammetry and digital photogrammetry services are obtained using aerial acquisition through digital ortho-photography.

GeoPro IT’s high-precision aerial photogrammetry and digital photogrammetry services are offered at extremely rational prices with accurate and cost-effective data collection for planning and lin aerial photogrammetry and digital photogrammetry services.

Typical aerial photogrammetry and digital photogrammetry services by GeoPro IT include:

 
  • Aerial Triangulation
  • Texturing
  • DEM / DTM Generation
  • Stereo Compilation
  • Topographic and Planimetric Feature Extraction (2D and 3D)
  • Ortho Generation and True Ortho Generation
  • Colour Balancing
 
 
  • Mosaicking And Tile Generation
  • Contour Generation
  • 3D Terrain Visualization
  • LIDAR Data Post Processing
  • 3D Texturing
  • Orthophotography Services
Aerial Triangulation is the calculation of true ground co-ordinates and 3D coordinates for object elements that are used as the base reference in aerial photogrammetry and digital photogrammetry. It is the method of developing several unknown coordinate points from a minimum of five control points inside each aerial photogrammetry model to be able to obtain absolute orientation of the model. Aerial Triangulation is an essential part of many successful aerial photogrammetry and digital photogrammetry project. GeoPro IToffers complete softcopy aerial triangulation services, providing highly accurate control for the map production. Digital images are uploaded into softcopy work stations. The airborne GPS coordinates and the ground survey control points are used to control the aerial triangulation solution. GeoPro IT utilizes LPS, SSK, DATUM software’s to perform digital aerial triangulation computations and analysis. Depending upon the project requirement and volume, GeoPro IT chooses the software as per the client request to provide qualitative aerial triangulation.
GeoPro IT provides LiDAR data processing, a prominent technology of aerial photogrammetry and digital photogrammetry services for the generation of Digital Elevation Model (DEM), Digital Terrain Model (DTM) and Triangulated Inverse Network (TIN) and so on to provide highly accurate detail of earth’s surface. The aerial photogrammetry and digital photogrammetry technique of LiDAR data processing is carried out on the acquired data after filtering noise and pre-processing activities using GPS survey for obtaining a referenced coordinate system with accurate elevation details. Once the pre-possessing of the data is complete, GeoPro IT technical staff uses Terra Scan and Terra Solid software for post processing of the LiDAR data. GeoPro IT has extensive experience aerial photogrammetry and digital photogrammetry services such as, generating the 3D models like DEM, DTM, TIN and other surface models as per the requirement.
Digital elevation model (DEM) is a medium of aerial photogrammetry and digital photogrammetry that is a representation of the Earth’s relief used for geospatial analysis and modeling. Elevation data are captured in the form of points with defined interval and the Break lines. GeoPro IT has vast experience in the creation of TIN Models and elevation models from the DEM data Contours. Vector Mapping: Vector mapping service is a branch of aerial photogrammetry and digital photogrammetry services provided at GeoPro. It is a representation of the earth surface features in 3D manner and used for geospatial analysis and modeling. GeoPro offers the preparation of map by extracting the vector or point information of railroads, buildings, hydrological features, vegetation, etc., as required by the user by different Symbols (trees, wells, poles, etc.,), Line types (rail, road, streams, etc.,) and regions (buildings, tanks, forest, etc.,) with unique ID.
Digital Orthophoto is a raster image generated by differentially rectifying scanned aerial photographs to compensate for distortions due to the altitude of the aircraft and the relief of the terrain. Digital Ortho photos combine the image characteristics of a photograph with geometric qualities of a map. The Ortho Photo generation.
Using 3D Modeling and virtual reality techniques, GeoPro IT is able to completely represent the client’s real world, bringing together all the relevant aspects of the 3D environment that you wish to model. GeoPro IT’s key functions include 3D visualization, 3D environment modeling, true 3D landscape reconstruction, visual reality and virtual reality integration, real time roaming with huge amounts of data.