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2D & 3D Drone Photogrammetry

With the modern advancements of drone scanning, photogrammetry provides the best and most accurate data available to professionals. All in a convenient and safe way like never before.

3D mesh model of Marina Barrage using images taken with drone

As technology advances with the rapid progress of globalization, the need to adopt safer and faster techniques in place of labor-intensive work has become increasingly important for businesses to stay competitive.

Today drones have become an essential tool in the industrial sector and more precisely for topography and mapping. It has brought a significant impact on the data acquisition world and it is changing the way we document, study, and respond to conditions in both natural and manmade environments.

In the area of data acquisition for monitoring and inspection purposes, the use of drones has definitely changed the way how facilities management, consultants and construction project teams manage their design, maintenance and construction works. With various post-processing steps, raw images and video footage taken during the drone flights could provide users with a comprehensive view of the existing conditions and current situations on the ground with geo-referenced information right from their desk.


How It Works

Step 01

Drone captures a large number of
high-resolution photos in an area

Step 02

Images with the same features are
then overlapped to be combined

Step 03

The images are processed using
photogrammetry software during
post- processing

Step 04

Photorealistic 3D representations of
topographic surfaces are generated

Recreating reality with technology

From small buildings to sprawling large areas, documenting your building or structure has never been easier. With our advanced drone, software, and certified drone pilots, we are able to help you acquire the data you need in a timely, safe, and cost-effective manner. We harness the power of visual data and ensure you have confidence in every decision.

Ryobi-G is here to bring surveying to the next level of mapping precision.

Why Choose Us


Cover large areas at faster rate, saving a lot of time and cost


We perform high-risk task for you in a safer manner

Licensed Pilot

Our drone operations are in compliance with the law and handled by our pilot that hold UA Pilot Licence (UAPL)


Before the start of each project, it is important for both the data acquisition team and client to first establish a common understanding on what is required of the drone flights and how it will affect its data accuracy over the time taken, effort spent and other resources allocated. The four main types of data acquisition approaches differ in terms of how the images are geo-referenced. They may be done by:  
– GPS data
– Ground Control Points
– Real-time Kinematic
– Post-processed Kinematic

Our Drone Photogrammetry Deliverables

3D Point Cloud

3D point cloud for model creation, geo-referenced measurements and comparisons.

2D Orthomosaic

2D orthomosaic image of large area for monitoring and inspection.

2D Orthofacade

2D orthofacade image of building for monitoring and facade inspection.

3D Mesh Model

3D mesh model for visualization of large features and areas.

Sample of a Digital Surface Model for an area size of approx. 7.5 ha


Raw and non stitched-up images may not be able to provide the facade inspectors with a good overview of the facade. This is due to fact that significantly more time is needed to screen through and identify the location of every image taken during the drone flight, in order to ensure a thorough visual inspection is conducted on the facade.  In contrast, an ortho-rectified facade image of a building front generated through image post-processing (like the above) allows the data acquisition team to screen through the facade with a large stitched-up image to further identify and classify the defects seen. 


Unprocessed images and videos taken with drones may be sufficient for the project team to monitor the progress of their construction site. However, this monitoring effort may not be as effective if the data is to be shared among multiple stakeholders. Therefore, a compatible file format on a common sharing platform that is able to provide meaningful geo-referenced information will mitigate the problem. This could be achieved by producing GIS compatible images geo-referenced with the required coordinates system as specified by the client. 

Geo-referenced images like this can be overlaid with multiple GIS data to provide a realistic view and comparison between design layouts and actual positions of the existing assets and installations in progress.

Common Applications of Drone Photogrammetry

Help to inspect, understand & make better decision of field

Produce geo-referenced 2D orthomosaic to inspect required installation within a construction site.

Produce geo-referenced 3D modeling of buildings and plants to revise and update existing drawing records.

Produce 2D orthofacade imaging of building to identify visible surface defects.

Produce 2D orthofacade imaging of large rock face for tunnel design work. 

Help to inspect, understand & make better decision of field

Produce geo-referenced 2D orthomosaic to inspect required installation within a construction site.

Produce geo-referenced 3D modeling of buildings and plants to revise and update existing drawing records.