Recrutement

Aerial photogtammetry surveys and mapping

Aerial photography definition

Aerial photography consists in acquiring pictures of a territory from a plane, a helicopter, or a drone, to give an overall comprehensive view. Depending on the acquisition technique and the image resolution, the picture will show more or less details of the surveyed area and the different objects of which it is comprised (vegetation, infrastructures, etc.).

A stereoscopic imagery acquisition will render all objects in three dimensions.

Aerial photography for aerial photogrammetry surveys and mapping

Sintégra has over 60 years experience in aerial topography and mapping surveys. Consequently, we are fully equipped to handle your aerial photography projects while delivering the best, most cost-effective technical solutions. Thanks to our highly qualified teams of engineers, technicians, and pilots specialized in aerial photography, all flight plans are carefully prepared so as to guarantee the highest quality and accuracy service while keeping costs under control.

Our company works in France and abroad (Europe, Africa, Middle-East, Indian Ocean…). It has the expertise and skills to process the collected data right through to delivering the final product.

We guarantee fast delivery of aerial photogrammetry surveys thanks to the fact that we have several types of cameras that can be fitted on all types of aircraft (planes, helicopter, drones), for vertical or oblique photography. We are equipped to operate efficiently whatever the region, the site topography, the surface area to cover and the desired resolution.

For complex projects which require several techniques (photogrammetry, Lidar, bathymetry…), Sintégra is your unique, multi-skilled partner. We are equipped to efficiently and quickly provide solutions to all your needs.

Aerial photography applications

The aerial photographs produced by our surveying company are generally used to create orthophotomaps and photogrammetry maps. They are also commonly used to produce 3D models and for communication purposes.

There are many applications including:

A comprehensive overview of a territory:
- Land management through creation and updating of a GIS (Geographic Information System).
Hydrolography and dams:
- Preliminary impact studies,
- Volume calculations, measuring hydraulic head,
- Rising water level simulations,
- Catchment calculations, runoff…
Quarries and mines:
- Site monitoring,
- Volume calculations,
- Site rehabilitation…
Environmental studies:
- Ecological impact of a project,
- Land use planning,
- Emergency surveying…
Forestry and agriculture:
- Irrigation field,
- Forest inventory…
Infrastructure studies:
- Land use planning:
  - Civil engineering,
  - Building and Public Works,
  - architecture,
  - Urban planning…
- Transportation:
  - Road,
  - Rail,
  - River…
- Energy transportation, power lines,
- Pipelines,
- Fiber optic installation…
Natural hazards:
- Flood risk mapping,
- Site surveillance (landslides, erosion…),
- Gravitational hazards (rockfalls, trajectography),
- Avalanche risk mapping,
- Glacier monitoring…
3D model texturing and coloring tool
Status archiving:
- To preserve a legally enforceable record of a status,
- Assessment after a major event (natural catastrophe…).

Technical resources and equipment

We are equipped to deploy our sensors on all types of aerial survey aircraft:

Single engine (Cessna 206TU) or twin engine (Beechcraft 200, Beechcraft 90, Partenavia P68C) aircrafts
Helicopters
Rotary wing UAVs (Terradrone, DJI) or fixed wing UAVs (eBee)
Large format cameras (Z/I DMC and DMCII)
Medium format cameras (Leica RCD30, Hasselblad and Phase One)

The pictures can be acquired in natural color (RGB) or in near infrared (NIR). Thanks to our equipment, we are flexible and can deliver optimal customized solutions with fast turnaround times. The use of acquisition systems consisting of equipment (hardware and software) integrated in-house gives us great autonomy in the field in case of unforeseen events.

références

Centre Régional Auvergne-Rhône-Alpes de l’Information Géographique – St-Etienne Métropole

Loire (France)

Prises de vues aériennes stéréoscopiques à 5 cm de résolution avec caméra DMCIII à dévers limités sur 754 km². Orthophotoplan haute résolution pour constitution d’un support pour exploitants de réseaux enterrés.

Panav

Fleuve Congo et rivière Kasaï (République démocratique du Congo)

Prises de vues aériennes stéréoscopiques à 20 cm/pixel RVB et CIR (simultanément à un levé LiDAR) sur 2 340 km et 17 700 km² pour projet de navigabilité des Voies Fluviales et Lacustres.

Bordeaux Métropole

Gironde (France)

Prises de vues aériennes stéréoscopiques RVB verticales à 10 cm/pixel avec DMCII (simultanément à un levé LiDAR) et obliques à 5 cm/pixel avec le système City Mapper sur 620 km² – Orthophotoplan haute résolution pour actualisation du S.I.G.

Office National des Forêts (ONF) – Massif de la Chartreuse

Isère (France)

Prises de vues aériennes stéréoscopiques RVB et CIR à 10 cm/pixel (simultanément à un levé LiDAR) sur 124 km². Orthophotoplan par autocorrélation pour projet ONF – Agence de l’Isère – IRSTEA (études forestières et archéologiques).

Contact

lidar-photo@sintegra.fr +33 (0)4 76 18 13 13