Geo-4D is an independent geoconsultancy based in Oxfordshire, UK, specialising in advanced remote sensing, data integration and 3D data services. Our core staff experience combined with a hand-picked suite of the best software available enables efficient and effective workflows, delivering accurate, cost effective and flexible solutions.
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1 customer review
Fiaz
Land Surveyor
Very professional would 100% use them again
3D Modeling and CAD Services
To best capture a structure in an accurate, resolute and efficient manner, Geo-4D use a combination of techniques:
1. Ultra-high precision ground-based 3D laser scanning with RGB camera to provide detail and relative accuracy
2. RTK GPS and total station measurements to provide absolute accuracy
3. Drone-based photogrammetry to access those hard-to-reach places such as roofs.
4. High resolution photography for areas of specific interest
Land Surveyor
Photogrammetric modelling relies on using numerous overlapping aerial photographs to triangulate the 3D geometry of features, whether they be terrains or individual structures and buildings.
Historically, manned aircraft would be used to acquire the data at significant cost; however, the rise of drones in recent years has allowed aerial imagery to be collected significantly more economically.
Geo-4D's fleet of fixed-wing and multirotor drones means we will always have the right aircraft for the job, whether it be a long endurance fixed-wing aircraft for expansive terrains, or a smaller and more agile multicopter for modelling a complex structure.
Aerial data acquisition is completed using pre-planned flights where the drone is programmed to collect images at specific waypoints. Ground control points are surveyed using an RTK GPS system to ensure the processed data are accurately georeferenced.
Data collection is rapid, with a square kilometre being fully mapped in less than 1 hr at a resolution of 2 cm.
Our team of in-house CAA-approved pilots mean you be certain the job will be performed professionally and safely.
Boundary Surveyor
Geo-4D are able to offer bespoke site topographical surveys and determined boundary plans. These plans offer land owners & developers the opportunity of greater security of tenure for resales' by providing a determined boundary and new registry plan by updating either the old title deed drawing or the existing Ordnance Survey-Land Registry extract plan.
Our determined boundary survey plans for Land Registry comply with the Court of Appeal requests for developers to provide you with higher detailed cadastral plans to a much higher standard than that available from the Ordnance Survey mapping. This is especially important for developments in rural areas where Ordnance Survey mapping at 1:2500 is often not accurate or detailed enough to provide adequate Land Registration.
General Survey
Geo-4D general surveying or land surveying is the technique, profession, art and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as building corners or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales.
Aerial & Drone Photography
Photogrammetric modelling relies on using numerous overlapping aerial photographs to triangulate the 3D geometry of features, whether they be terrains or individual structures and buildings.
Historically, manned aircraft would be used to acquire the data at significant cost; however, the rise of drones in recent years has allowed aerial imagery to be collected significantly more economically.
Geo-4D's fleet of fixed-wing and multirotor drones means we will always have the right aircraft for the job, whether it be a long endurance fixed-wing aircraft for expansive terrains, or a smaller and more agile multicopter for modelling a complex structure.
Aerial data acquisition is completed using pre-planned flights where the drone is programmed to collect images at specific waypoints. Ground control points are surveyed using an RTK GPS system to ensure the processed data are accurately georeferenced.
Data collection is rapid, with a square kilometre being fully mapped in less than 1 hr at a resolution of 2 cm.
Our team of in-house CAA-approved pilots mean you be certain the job will be performed professionally and safely.
