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SECON’s 28 years of survey and mapping experience gives advantages for the accurate mapping using the latest Photogrammetric and LiDAR technologies.
SECON specializes with high end LiDAR Data Processing capabilities with advanced Photogrammetry softcopy workstations and latest processing software.
SECON’s LiDAR experts are trained extensively with hands-on project experience.
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| SECON has necessary technical skills, facilities & manpower in LiDAR.
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The service offerings include:
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| Lidar_major_projects_clientsFlightline Matching / Terranmatching |
The various flightlines will be corrected for heading, roll, pitch and height using TerraMatch software.
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| Bare Earth Editing |
In the raw LiDAR data, there will be returns from ground and non-ground points like water, small/ high vegetations, buildings and other noise points.
These returns need to be edited to get accurate ground surface.
SECON uses TerraSolid’s products like TerraScan and TerraModeler for the Bare Earth editing.
This processed data can be utilized for Floodplain Mapping, Corridor Mapping and Infrastructure Projects like Roads, Canals etc.
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| Building Classification |
Building points in raw LiDAR data are distributed in ground-vegetation-building classes which is extracted separately.
Automatic building classification classifies up to 70% and the balance is done manually using TerraScan and TerraModeler software to achieve required accuracy (up to 95%).
The building classification facilitates calculating surface area that helps in taxation. It also helps in flood and other disaster management.
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| Feature Collection |
| Features like waterbodies, canopy surfaces, road break lines, spot elevations etc. will be captured using LiDAR surface, intensity images or ortho rectified Aerial photographs. |
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LiDAR intensity image
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Features captured from LiDAR intensity image |
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| Contour Generation |
Contours of required interval are generated from the classified bare earth surface. Based on project requirement, the features collected is used to generate more accurate contours as per standards like ASPRS etc.
The generated contours are used for Watershed Analysis, Floodplain Mapping and other Engineering purpose.
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SECON has the capability to obtain Corridor details and Asset Inventorization using LiDAR Technology (eg. Power Transmission Lines, Gas Grid Network Planning etc.).
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| Geodatabase Creation |
The LiDAR processed data like Mass Points, Features, Contours, Images etc. are integrated to a single geodatabase platform for further analysis.
SECON has necessary skills to develop further GIS applications to retrieve, modify and analyse the data. |
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| 3D Modelling |
3D surface models for bare earth, building, water bodies etc. are created using classified LiDAR points and contours. This is used for Flood Modelling and Engineering purpose.
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| LiDAR Automations |
SECON’s automation team has developed various LiDAR automation routines that include:
- Feature Extraction
- Pond/ Lake Flattening
- Automatic Spot Height generation
- Breakline extraction
- Adding vertices to BL’s
- Building Heights
- Double line Drains
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