SPATIAL ECOLOGY & CONSERVATION (SPEC) LAB
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GatorEye Lite data postprocessing instructions


Micasense Altum and L1 visual photogrammetry in Pix4D software

Data is collected with the DLS-2 data, which includes information from a separate IMU, a Geotag using the DLS-2 integrated GNSS unit (thus it is not differentially corrected and would differ in location slightly from the Lidar data), and daylight intensity information.

Altum data is post-processed into daylight and sun angle corrected orthomosaics of spectral bands and indices using Pix4D software. The instructions are provided at: 

https://support.micasense.com/hc/en-us/articles/115000831714-How-to-Process-MicaSense-Sensor-Data-in-Pix4D

And, likely more useful, screen clips of Pix4D parameters as run by GatorEye team: https://bit.ly/3dXpPQU 

However, note that many of the instructions provided are outdated and no longer required. Specifically,
  • The Altum images load correctly and automatically in Pix4D now. You do not need to adjust anything related to the image or camera information. Simply load the directory of photos, and then can start to process after following the 'ag template' and other setup process.

The Pix4D process workflow of: "Ag Multispectral processing template". No 3D point clouds should be derived from these images as it will not be high-quality and 3D structural data is provided from the Lidar sensor.

The calibration setting of: "Camera, Sun Irradiance and Sun angle using DLS IMU" should be used.

Ideally, one process run will include all Altum data, as well as the visual imagery from the L1 sensor, in the same process.

CONTACT

Center for Latin American Studies
School of Forest, Fisheries and Geomatics Sciences
University of Florida
aalmeyda@ufl.edu  / eben@ufl.edu
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  • Home
  • People
    • Alumni
    • Join us
  • Research/Data
    • Data download
    • Geospatial Plot data workflow (GeoPlot)
    • Global Aboveground biomass Potential (GAP)
    • Global Ecosystem Structure Index (GESI)
    • PARAGUAYAN PERMANENT PLOT NETWORK (PPMB)
    • 2ndFOR
    • Sustainable Tourism >
      • Lapa Rios
    • Monitoring
    • Biodiversity Frameworks
    • References
    • SPEC Lab Internal
  • GatorEye
    • Donate to GatorEye
    • Postprocessing analytics
    • Hyperspec: links & refs
    • LiDAR: links & refs
  • ORC-CCS
  • GatorEye XL
  • GatorEye XTR
  • GatorEye Data Access
    • MOU
    • Altum processing tips
  • Teaching
    • UAS Practicum
  • Info for students
    • Templates
    • Writing resources
    • Schedule
    • Funding >
      • NASA FINESST Fellowship
  • Photos
    • Puppies
  • Directions
  • Links
    • INOGO
  • SFRC UFL
  • BigPlotNetwork
  • Osa-INOGO
  • Storm Cloud
  • CDK