Supervised Vicarious Calibration (SVC) of hyperspectral remote-sensing data

Anna Brook, Eyal Ben Dor

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A full-chain process approach to extracting reflectance information from hyperspectral (HRS) data which is valid for all sensor qualities is proposed. This method is based on a mission-by-mission approach, followed by a unique vicarious calibration stage. As the HRS sensor's performance may vary in time and space, a vicarious calibration method to retrieve accurate at-sensor radiance values is necessary. In fact, vicarious calibration solutions usually rely on natural, well-known, bright and dark targets that are large in size and radiometrically homogeneous. Since such targets are not commonly found in the field for every mission and their spectral features can sometimes resemble artifacts in the corrected radiance, a new vicarious calibration approach is needed. This paper describes a new method that uses artificial agricultural black polyethylene nets of various densities as vicarious calibration targets that are set up along the airplane's trajectory (preferably near the airfield). The different densities of the nets combined with any bright background afford full coverage of the sensor's dynamic range. We show that these artificial targets can be used to assess data quality and correct at-sensor radiance within a short time. Several case studies are presented using AISA-Dual sensor data taken at different times from different locations. We term the suggested vicarious calibration approach Supervised Vicarious Calibration (SVC) and demonstrate its performance in term of spectral accuracy.

Original languageEnglish
Title of host publicationIEEE-Whispers 3ed Workshop on Hyperspectral Image and Signal Processing
Subtitle of host publicationEvolution in Remote Sensing
StatePublished - 2011
Externally publishedYes
Event3rd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2011 - Lisbon, Portugal
Duration: 6 Jun 20119 Jun 2011


Conference3rd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2011


  • AISA-Dual sensor
  • Atmospheric correction
  • Hyperspectral data calibration
  • Radiometric uncertainty
  • Vicarious calibration

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing


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