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LiDAR Engineering

GeoCentroid LiDAR team have experience and skills in providing data processing, classification and Mapping services using 3D point cloud. We are focused on delivering high quality data services with cost effective way and build long term business relationship with the client to ensure this have several stages of QC/QA process followed before data delivery.

Operational Theory

LIDAR (Light Detection and Ranging): A pulse of light is emitted, and the precise time is recorded. The reflection of that pulse is detected, and the precise time is recorded. Using the constant speed of light, the delay can be converted into a “slant range” distance. Knowing the position and orientation of the sensor, the XYZ coordinate of the reflective surface can be calculated. The different types of LiDAR acquisition are:

Aerial LiDAR Survey (ALS)

It is an aerial mapping technology in which laser returns from the earth's surface are reflected to an overflying aircraft equipped with on-board GPS and IMU sensors.

Mobile LiDAR Survey(MLS)

Mobile LiDAR is an innovative mapping solution that incorporates the most advanced Lidar sensors, cameras and position/navigation to collect survey-quality point data quickly and accurately.

Terrestrial LiDAR Survey(TLS)

Terrestrial LiDAR is a land-based laser scanner which, combined with a highly accurate differential GPS, enables us to produce 3D computer model.

We, at GeoCentroid, have the expertise and skills in providing services as follows:

  • Classification of Bare Earth and vegetation, buildings, bridges

  • DTM, DSM and Contour generation

  • Electrical Utility Mapping / Power line classification and mapping

  • Vegetation Mapping

  • Telecom asset capturing

  • Pipeline projects

  • Flood Mapping

  • Hydro enforcement

  • Mining project

  • 3D modelling and 3D Feature extraction

  • Engineering drawings – Cross / Long sections

  • Topographical Mapping

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