UK: + 44 7967 445 829 | EU: + 421 917 163 367
UK Office:
+ 44 7967 445 829
EU Office:
+ 421 917 163 367
UK: + 44 7967 445 829 | EU: + 421 917 163 367
UK Office:
+ 44 7967 445 829
EU Office:
+ 421 917 163 367
The MAPIR T4P-R125 Waterproof Diffuse Reflectance Standard Calibration Ground Target comprises four special 125mm x 125mm painted targets of known reflectance housed in an IP67 case. Unlike basic drone “sunlight sensors” this target will enable you to obtain accurate repeatable calibrated images no matter which seasons or differing weather / lighting conditions. It is compatible with virtually any multi-spectral camera solution. The T4P-R125 is more durable than the standard T4-R125 (with felt targets) and able to get wet or dirty and will maintain their listed reflectance when cleaned and dried.
Smaller T4P-R25 and T4P-R50 waterproof target is also available as well as lower cost felt type targets.
Before commencing a crop mapping survey cameras should capture an image of the entire target. This can then be used to help calibrate images captured in the image processing software.
We therefore highly recommend that you purchase the Mapir Camera Reflectance Calibration Target to complete your system.
MAPIR – MAPPING THE INVISIBLE
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The MAPIR T4P-R125 Waterproof Diffuse Reflectance Standard Calibration Ground Target can be used with almost any multispectral camera and software system. Unlike a simple ‘sunlight sensor’ this helps provide highly accurate calibrated results essential for multi-season or scientific analysis.
The T4P-R125 comprises four special 50mm x 50mm painted aluminium targets of known reflectance housed in an IP67 case. It is more durable than the standard T4-R125 (with felt targets) and perfect for outdoor and dirty environments since it can be cleaned with a soft brush and water. Once dried it retains its listed reflectance calibration*.
To use, before each flight capture a full image of the entire target with no shadows using each camera. The lambertian reflectance panels can be captured from any angle thanks to similar diffuse and total reflection properties, however capturing straight-on is recommended. After the flight import the images into your chosen software. Mapir’s MCC and Chloros computer vision software automatically finds the QR symbol on the target images and calculates the pixel to reflectance relationship using the known target material reflectance percentage*. If you are not using Chloros then you can download calibration data download here and use it with other software. The target will improve the normalisation of your surveys over time and locations. Contact SeeSense for the full tutorial containing detailed links and information.
Smaller T4P-R25 and T4P-R50 waterproof targets are also available as well as lower cost targets using calibrated felt like materials.
*Measurements from 350-2500nm were made using calibrated spectrometers.
| Weight | 2.0 kg |
|---|---|
| Dimensions | 40.0 × 32.0 × 10.0 cm |
| Brand | |
| Industries |
| Ground Sample Distance | Mapir Survey 3W – 0.5 – 10.0 metres Mapir Survey 3N – 1.0 – 32.0 metres |
| Targets | 125 x 125mm White, Light Grey, Silver Grey & Dark Grey All calibrated for known reflectance |
| Weight | 1.8 Kg |
| Housing | IP67 hard plastic |
| Dimensions | Closed 38 x 31 x 7 cm |
Mapir T4P-R125 Waterproof Diffuse Reflectance Calibration Target
€450.00 (€553.50 including VAT)
€535.00 (€658.05 including VAT)
You are welcome to proceed with this order but the goods will come from our EU office.
If you prefer to purchase directly from our UK registered business please e-mail sales@seesense.eu with your requirements.
You will then receive a personal direct service from our experienced UK team
