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Digital Photogrammetry

Digital photogrammetry is the art of using computers to obtain the measurements of objects in a photograph. It typically involves analyzing one or more existing photographs or videos with photogrammetric software to determine spatial relationships. Used to create topographical maps, it may also be useful in a variety of industries.

Naksha tech have a department of digital photogrammetry with highly qualified and skilled employees. To achieve completeness and accuracy of each project, Naksha tech uses specific quality control and quality assurance team to meet client needs.

We provide complete solutions on all tasks of Digital Photogrammetry such as,

  • Aerial triangulation
  • Topographical Mapping
  • Stereo compalition

Ortho Image Process

An orthophotograph is an aerial colour photograph geometrically and geographically corrected to be superimposed on a plan. The production of orthophotograph consists of correcting the distortions of the exposures caused by ground surface relief.

Digital Orthophoto are used as maps, for visual identification and also with combination of other mapping products like DTM and contours.

We generate digital Orthophoto that most closely achieves the resolution of the continuous tone and original aerial image. We apply a variety of image enhancement and edge sharpening routines using special Image processing techniques.

The process involves colour / contrast matching and feathering techniques to ensure a virtually seamless mosaic. Many images can be mosaicked and resampled to produce an overview image file to supplement the original orthoimages. Accuracy is measured by comparing the rectified position of ground control point to the true coordinates of the point.

We create Orthophoto with different pixel sizes. We work on RGB and Four band imagery which includes

  • Orthophoto generation / Ortho rectification
  • Seamline Editing
  • Color Balancing
  • Creating Mosaics
  • Edge Matching


LiDAR (Light Detection And Ranging) is a revolutionary aerial laser scanning technology which enables height data from the land to be captured quicker, accurately and cost effectively.

LiDAR is the most cost effective method of capturing detailed height data both of the ground and features on the ground. It is ideal for generating digital elevation models and contours. Mapping infrastructure such as power-lines and corridors mapping for proposed pipeline, railway and road routes.

Naksha tech provides full range of LiDAR data processing services. Naksha tech’s experienced staff subjects the collected data to a rigorous quality control review process – including data density, terrain variation analysis, data anomaly filtering, review of 3D/perspective views and review against corresponding digital orthophotography (where available).

we offer a full range of LiDAR services and solutions such as,

  • DTM & DEM Extractions – Ground & Topographical classifications
  • Power Line feature coding and catenary stringing
  • Feature Extractions – Advance classifications like Building, Moving features,
  • Vegetation etc…
  • Corridor Mapping
  • Contour generation
  • Orthophoto generation using Terraphoto application

Remote Sensing

Remote Sensing is a technology of obtaining information about an object without a physical contact with the object but with a sensor mounted on an aircraft or a satellite. The underlying concept is that the sensor either detects the natural radiation that is emitted or reflected by the object (Passive Remote Sensing) or emits energy to scan objects and measure the radiation that is backscattered from the object (Active Remote Sensing) .The advantage of Remote Sensing is that it makes it possible to collect data even in inaccessible areas.

Remote Sensing has numerous applications and not limited to the management of various resources like agriculture, forestry, geology, water, ocean, mining, mineral exploration etc. With the availability of high resolution satellites in recent years, the applications have grown. Few of the most common applications include,

  • Land use/Land cover Mapping
  • Flood Mapping/Monitoring
  • Coastal Zone studies
  • Military Intelligence
  • Meteorology, Earth Science & more

The output of a remote sensing system is usually an image representing the scene being observed. But this digital image is to be processed further so as to extract useful information. Naksha tech has a department handling the remotely sensed digital images often involving the image correction, enhancement and classification (categorizes all pixels in an image into land cover classes or themes). The professionals at Naksha tech appreciate the immense value of this technology and were the supplying the customers of geospatial sector with a valuable information to meet their needs.


Naksha tech can receive the inputs of various domains such as Cadastral maps, Utility maps, Geology maps and Engineering or Architectural drawing in paper or a scanned image format. we will digitize/convert these maps to digital format according to technical specification provided by the client. we offers and deliver the quality output in various formats as per the client requirements.

Naksha tech will follow the international data creation standards along with defined project process methodology to ensure the quality of the deliverables.

Naksha tech offers the following Data Creation services:

  • Land use/Land cover Mapping
  • Flood Mapping/Monitoring
  • Coastal Zone studies
  • Military Intelligence
  • Meteorology, Earth Science & more
  • Cemeteries Mapping
  • 2D vectorisation
  • Thematic map Generation

3D Laser Scanning

3D Laser Scanning is a non-contact, non-destructive technology that digitally captures the shape of physical objects using a line of laser light. 3D laser scanners create “point clouds” of data from the surface of an object. In other words, 3D laser scanning is a way to capture a physical object’s exact size and shape into the computer world as a digital 3-dimensional representation.

We uses 3D laser scan surveys to reverse engineering intelligent or non intelligent, accurate as-built 3D models, rapidly and low cost we gives the prospect of affordable 3D models for all clients.

  • BIM (Building Information Modeling)
  • Industrial Facility
  • Oil and gas Plant
  • Floor Plans, elevation and cross section
  • Bridges, roads, tunnel and railways
  • Heritage buildings

Drone Surveying And Mapping

Drone aerial surveying have started to be widely used in Geospatial sector. Naksha Tech is one of the best Drone companies in India and produces economic, fast and accurate maps and drone that we use has RTK/GPS technology and is specifically designed for surveying.

Naksha Tech owns both Fixed wing and Quad copter UAV’s. Our Drone team successfully executed more than 100 Projects in various sectors.


Drone mapping services:

  • Digital Terrain Model (DTM)
  • Digital Surface Model (DSM)
  • Volumetric
  • Contour and Topographic mapping
  • 3D Visualization
  • Ortho-mosaic


Work Flow:

  1. Flight planning
  2. Vehicle designing
  3. Aerial Survey
  4. Processing: Images to Point cloud
  5. Quality Control and Final Output delivery.