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Multi-Wavelength Airborne LIDAR Acquisition and Instrumentation

poster description

An Overview of Chiroptera Lidar and Imaging System (poster). View larger format.

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An Overview of Chiroptera Lidar and Imaging System

Chiroptera lidar system consists of two active sensors which make use of near infrared wavelength for topographic surveys, and near infrared+green wavelengths for bathymetric elevation measurement.

Imaging system consists of five passive sensors such as RGB natural color/color infrared camera, hyperspectral visible rear infrared (VNIR) and shortwave infrared (SWIR) camera, as well as broad band microwave infrared (MWIR) and longwave infrared (LWIR) camera.

Potential advantages of multi-spectral LIDAR:

  • Seamless topographic-bathymetric elevation deata and images
  • Sea surface/floor reflectance
  • Chlorophyll/CDOM concentration
  • Seafloor/landcover classification
    • ARL:UT unique waveform feature extration algorithms for enhanced classification using both the visible and near-infrared wavelength
  • 3-D volumetric view of water column
  • 3-D auto stereo view
  • Data fusion capabilities for improved geospatial analysis

An airborne suite of active and passive sensors

  • Data fusion techniques and exploitation algorithms can be optimized for specific applications and environments
  • Owned and operated by UT Austin's Bureau of Economic Geology

Description of model on the bottom right in graphic

Topo/Bathy model-derived from RTK GPS during low tides, which is extremely labor intensive!

A multi-spectral LIDAR enables generation of a seamless Topo/Bathy model from one LIDAR survey.