Extraction of elevations for your 3D mapping workflowsServices
Earth imagery is used for the creation of information products such as elevation models. Digital Elevation Models are created from point data that contain the longitude, latitude and height coordinates on the surface of the earth. Magnasoft provides all sorts of high-accuracy elevation models for your 3D mapping workflows. In addition to creating the right type of surface model that meets your needs, we offer tailored digital elevation modeling, digital surface modeling services for specific industry applications such as urban mapping, forestry, land management and mining.
Magnasoft provides the following Digital Elevation Modeling Services that are tailored to specific industries:
DEM/DSM/DTM extraction refers to deriving the elevation values of a surface terrain when using photogrammetry....
Forestry applications are large users of digital terrain and surface models. Capturing such data from...
Magnasoft provides end-to-end data solutions that help smooth mining operations, geographical identity, and classification of...
Magnasoft captures data using 3D Mobile LiDAR and UAV (Unmanned Aerial Vehicle)/ drone for creating...
Other than 2D maps that often contain no height data, digital elevation models show the elevation, which is valuable information for 3D mapping workflows where objects are mapped in a 3D space, where height information is crucial to map them correctly.
There are many DEM variants, such as DTMs, DSMs and DHMs. DSM extraction includes all manmade objects on the surface of the earth, such as buildings, powerlines, bridges, vegetation, other permanent and temporary objects, while Digital Terrain Modeling involves collecting mass points of elevations and 3D breaklines at each change of terrain. These mass points are collected at a grid spacing that meets project requirements. DTM extraction enables the generation of contours that meet specific standards.
DEM data extraction is widely used in GIS for studying geology, relief maps, land-based studies, flood modeling and similar. Height information can be derived from remotely sensed stereo imagery using a photogrammetric technique that determines elevations from imagery that is collected from two points of view with an overlap between both. Another way for performing Digital Elevation modeling is to extract points from LiDAR data or interferometric synthetic aperture radar (IFSAR).
Digital Elevation Modeling refers to creating a 3D representation of the elevation of a terrain. It realizes a visualization of a point data set that contains x, y and z coordinates of a surface. DEMs represent longitude, latitude and height information from the real-world that can be visualized using 3D mapping software. There exist many variations of DEMs. DTMs are also known as bare-earth DEMs that do not include objects, such as trees or buildings. A DSM is a DEM that does include such objects and represents the highest locations on the landscape.
Digital Elevation modeling is widely used in GIS for studying geology, relief maps, land-based studies, flood modeling and similar. DEM data analysis is important for the aforementioned 3D mapping workflows. Additionally, DEM analysis forms part of 3D mapping workflows for land administration, mining and forestry applications. Surface and elevation information enables the precise location and mapping of objects that are below or under the earth’s surface. Now that assets are being modeled, positioned and mapped inside their spatial context, surface information is a necessary component for 3D mapping purposes.
Industries that use DTM/DSM mapping are forestry, mining and land management. Digital Elevation modeling forms the basis for specialized applications used by these industries including volumetric calculations in the case of mining. The same way, DTMs are used for contour generation, which further increases detail level through contour lines for any elevation grid data set. Also, urban mapping applications use elevation models for highly-detailed 3D city models. These form the basis for digital twin models and smart city development.
Digital Elevation Models are often created from photogrammetry, but can also be produced through land surveying techniques. While this used to be a highly specialized domain requiring costly equipment and highly trained personnel to produce high-quality mapping data, there are now data elevation data sets available that can get you up to speed for your mapping workflows. It has also become easier to combine other data sources such as aerial and satellite imagery or collect your own data using drones. However, for accurate, reliable and surveying-grade results, a geospatial data service provider will be the best choice for creating digital elevation models and derivatives.
Magnasoft uses sophisticated technologies and automated macros to generate Digital Terrain Model /Digital Surface Model point grids. This includes DTM modeling services using photogrammetry and LiDAR. We guarantee sheer accuracy in classification and identification of features such as ridges, hills, ground, vegetation, buildings, bridges, water resources, powerline features for all Digital Surface Models (DSMs). Magnasoft provides DEM extraction services tailored to industries such as forestry, mining, urban mapping and land management, as well as DTM modeling services.