This is suitable for quantitative image analysis and display. Reflectance-Full pixel calibration that removes radiometric effects due to the sensor, sun angle, atmosphere, and surface material, and provides surface reflectance. Radiance-Pixel calibration that removes sensor effects but still includes the reflection effects of the sun, atmosphere and surface material. Radiometric Quantity Typeĭigital Number-Raw pixel values that include the reflection effects of the sun, sensor, atmosphere and surface material. To determine the reflectance ratio for Average Panel Reflectance with MicaSense cameras, you need to directly email MicaSense support with the images of the calibration panels. Not all multispectral cameras support radiometric calibration in ArcGIS Drone2Map, see multispectral camera support for supported cameras.

The panels have a calibration curve associated with them that provides an Average Panel Reflectance value for each multispectral band. Some camera manufacturers provide calibration panels upon purchase of a multispectral sensor. It is common practice to acquire multispectral imagery of these panels immediately before, during, or after a flight to obtain ground truth reference data at the same altitude as image collection. Calibration panels provide a stable uniform surface that can be used as a ground truth for radiometric adjustment. For drones equipped with multispectral cameras, these corrections are achieved with the use of calibration panels. But if your remote controller is malfunctioning it may need to be calibrated. To properly calibrate multispectral imagery bands, you need to account for atmospheric effects, such as aerosol content, reflection, diffusion, and absorption of light, and sun angle. All Mavic remote controllers are calibrated before delivery. Materials on the surface of the earth reflect the sun's energy at different levels than what a drone sensor records.

Drone x pro calibration