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Processing MAPIR Survey Images in Point-Cloud Software
(Pix4D & Photoscan)

While the steps outlined in our general work-flow can be followed for the more basic processing software (MAPIR Cloud, Drone Deploy, MapsMadeEasy) there are specific steps that should be followed for advanced stitching using point cloud software such as Pix4D and Agisoft Photoscan:

Step 1: Convert log file to GPX format using Mission Planner

Step 2: Geo-tag your images in Geosetter with the GPX track file

Step 3: Pre-process the images in our MAPIR QGIS plugin. Optional to choose to correct image vignette but not necessary since the point cloud software will typically correct this for you.

Step 4: Stitch images into ortho-mosaics using your point cloud software, making sure to choose the calibrated camera profiles (Pix4D or Photoscan).

Step 5: Calibrate the ortho-mosaics in our MAPIR QGIS plugin using an image of our Calibration Target (recommended)

Step 6: Calculate the index (ie NDVI) image in the rastor calculator of QGIS. Video tutorial here.

Step 7: Apply the color gradient (lut) of your choosing using the previous step software (see video guide).




Nolan Ramseyer
Nolan Ramseyer

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