COLLECTION AND PROCESSING OF DATA ELEMENTS IS ESSENTIAL TO OBTAIN ACCURATE INFORMATION.
DEM/DTM GENERATION
A Digital Elevation Model (DEM) is a specialized database that represents surface relief between known elevation points. A digital terrain model (DTM or DEM) is a three-dimensional representation of the earth's surface, represented as an array of points with a certain height. A terrain model contains height information without considering vegetation, buildings and other objects.
2D & 3D MODELING
The main difference between 2D and 3D modeling in CAD is that 3D modeling adds a third dimension. This means that 3D models contain more information than 2D models. They represent the finished site as it looks in real life. 2D models, on the other hand, provide valuable information, but viewers have the right to imagine what the final product will look like. 3D models are created in advanced computer software and incorporate data from Light Detection and Ranging (LIDAR) equipment, Global Positioning System (GPS) and aerial photogrammetry.
BIM
Building Information Modeling (BIM) is a holistic process for creating and managing information about built assets. Based on an intelligent model and supported by a cloud platform, BIM brings together structured, interdisciplinary information to create a digital representation of an asset throughout its life cycle, from planning and design to construction and operation.
Processing of Multispectral Images
Multispectral images are produced by sensors that measure the energy reflected in several specific sections (also called bands) of the electromagnetic spectrum. Multispectral sensors typically have between 3 and 10 different band sizes per pixel of the images they produce. Examples of bands in these sensors are typically visible green, visible red, near infrared, etc. includes. Landsat, Quickbird, and Spot satellites are well-known satellite sensors that use multispectral sensors.