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GIS Mapping workspace Land use mapping dashboard
DGPS/Total Station • UAV Survey • Orthomosaic • DSM/DTM • Web Data Processing

Drone Survey & Aerial Mapping

Accurate, efficient, and high-resolution aerial surveying using UAV (drone) technology to generate comprehensive geospatial data for planning, monitoring, and analysis across multiple sectors.
Our drone survey services deliver end-to-end data acquisition and processing for engineering, land governance, infrastructure, mining, urban planning, and environmental projects.

Delivery options: Cloud • On-Prem • Hybrid

Core Features

Integrated geospatial services including GIS mapping, UAV and DGPS surveys, WebGIS deployment, spatial analytics, and decision support systems.

Aerial Data Acquisition & Ground Control

High-resolution drone data capture with optimized flight planning, supported by GPS/DGPS-based Ground Control Points (GCPs) to ensure survey-grade positional accuracy.

Image Processing & Orthophoto Generation

Processing of raw aerial imagery including alignment, geo-referencing, and mosaicking to produce seamless, accurate orthophotos suitable for GIS and measurement applications.

3D Data Products (Point Cloud, DSM & DTM)

Generation of dense point clouds and elevation models including Digital Surface Models (DSM) and Digital Terrain Models (DTM) for terrain analysis, engineering design, and planning.

Topographic Outputs & Analysis

Creation of contour maps, slope and elevation analysis, and surface profiles supporting land surveys, road design, drainage planning, and construction workflows.

Volumetric, Change Detection & Monitoring

Accurate cut–fill and stockpile volume calculations, progress monitoring, and multi-temporal change detection for mining, infrastructure, and environmental projects.

Final Deliverables, Integration & Reporting

Delivery of all datasets in GIS, CAD, and WebGIS-ready formats, including 3D models, maps, accuracy reports, and project documentation for seamless system integration.

Frequently Asked Questions

Quick answers on land governance, GIS mapping, drone and DGPS surveys, WebGIS publishing, spatial analytics, and groundwater exploration.

Do you support land record computerization and property tax assessment?

Yes. We support digitization and updating of land/property records, field verification, and property tax assessment workflows to improve accuracy and transparency.

Can you digitize base maps and create GIS layers for departments?

Yes. We digitize base maps and existing spatial entities (roads, parcels, boundaries, utilities) into standardized GIS layers ready for analysis and operational use.

Do you offer WebGIS publishing for municipal assets?

Yes. We create asset databases and publish them through WebGIS so teams can manage assets centrally with role-based access and controlled sharing.

What mapping solutions do you provide (flood/disaster/change detection)?

We provide thematic mapping for minerals, land use, agriculture, urban planning, flood management, disaster management, and change detection studies with decision support outputs.

Which survey services are available (Total Station / GPS / DGPS)?

Total Station, GPS, DGPS, contour/topographical surveys, land surveys, and GIS surveys for construction, planning, and engineering requirements.

Do you provide groundwater exploration using VES?

Yes. We plan and execute Electrical Resistivity Survey (VES), interpret results with domain expertise, integrate GPS + GIS, and provide structured hydro-geological reporting.

Consultation & Technical Enquiry

Talk to an OPSIS Specialist

Engage with our geospatial specialists to review your project objectives, technical requirements, and implementation approach. We provide expert guidance to support reliable GIS, survey, and spatial solutions tailored to your needs.

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Geospatial Solutions

Our Products

High-quality geospatial products tailored for mapping, analysis, monitoring, and intelligence workflows.