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lidar services, topographical mapping, classification services, point cloud classification, dem and contour generation,


LiDAR is the technology which is helping civil engineering and survey agencies like never before. LiDAR uses light detection and ranging phenomenon which is quite similar to the much-spoken RADAR technology.

The biggest difference between the two technologies is that LiDAR is much more accurate and easy to apply technology.

LiDAR Data Processing:

Processing topographical LiDAR data needs 2 major steps a) an interior quality check of the information and b) an external quality check. Quality checking primarily means that ensuring 3 points:

the data density (to guarantee appropriate DTM output) and also the horizontal and vertical accuracy of data. data density might not be complied with once the survey navigation isn't properly allotted, leading to gaps between adjacent swaths or over water patches (since water theoretically absorbs the infra-red radiation). The operators sometimes offer a density map in conjunction with the data files. internal control for topographical information involves obtaining obviate outliers which can be a result of some obstructions to the sunshine path. It additionally means that filtering objects of no direct interest for the user (typically vegetation, homes and any human objects) to make a DTM representing true ground heights. whereas the bottom signature is retrieved fairly simply on the topographical measuring instrument, rock bottom signature is far additional advanced to notice on oceanography measuring instrument. I observe all teams of dots area unit separately reviewed by the interpreter UN agency decides whether or not rock bottom has been found or not. This additionally depends on the context (neighboring dots) and examination of the waveforms. lightweight break up could also be modulated by standing vegetation (e.g. ocean grass or kelp) which may jeopardize bottom detection.

Lidar Mapping Services:

Polosoft applies all types of LiDAR technologies and advanced LiDAR processes to complete its LiDAR Data Services.

PoloSoft provides various LiDAR Survey Mapping, LiDAR data Collection, processing, and LiDAR Mobile mapping services. We have been involved in all types of LiDAR technologies and advanced LiDAR processes. LiDAR Data Services provide high-resolution data deliverables at cost effective prices to its clients across the globe. Different services which PoloSoft provides for LiDAR are:

  • Airborne / Terrestrial LiDAR Processing
  • Bare Earth Extraction (DEM/DTM)
  • Advance classification such as Building
  • Vegetation, Bridges, Water etc (DSM)
  • Powerline classification & Vectorization
  • 3D Building Models
  • Breakline& Contour Generation
  • Breakline& Contour Generation
  • Orthophoto generation & Color Balancing
  • 3D-Feature Vectorization


  • Point Cloud Classification: Recently, object-based image analysis has been proven to be more efficient in image classification than pixel-based methods. In order to raise the capability of automatic recognition of land features from LiDAR data, 2D OBIA method is extended for 3D point cloud classification of LiDAR data.
  • DEM & Contour Generation: A digital elevation model (DEM) is a virtual representation of topography, where the terrain is established by the 3-d co-ordinates.This paper forces DEM generation from contours. As contours are usually sparsely distributed and closely related in space, sparse spatial regularization (SSR) is enforced on them. In order to make up for the lack of spatial information, another lower spatial resolution DEM from the same geographical area is introduced. In this way, the sparse representation implements the spatial constraints in the contours and extracts the complementary information from the auxiliary DEM
  • Advance Classification: Recently, automatic object extraction from Light Detection And Ranging (LiDAR) data has attracted great attention. The level of detail and the quality of the collected point cloud motivated the research community to investigate the possibility of automatic object extraction from such data
  • Topographical Mapping: Mapping of a large area( say a city) by using contour lines. This is mostly used by satellite-mounted LiDAR system, a map of natural land and man-made architecture is obtained as an end result of Topographical mapping services.
  • 3D City Modeling: By using x, y and z coordinates to build a two-dimensional map of an object as small as an office printer and as large as Hoover dam say a complete city to generate a 3D model