Hyperspectral VNIR and photogrammetric data fusion approach for urban luminance map generation


  • L. Pipia Institut Cartogràfic i Geològic de Catalunya
  • R. Alamús Institut Cartogràfic i Geològic de Catalunya (ICGC)
  • A. Tardà Institut Cartogràfic i Geològic de Catalunya (ICGC)
  • F. Pérez-Aragüés Institut Cartogràfic i Geològic de Catalunya (ICGC)
  • V. Palà Institut Cartogràfic i Geològic de Catalunya
  • J. Corbera Institut Cartogràfic i Geològic de Catalunya (ICGC)
  • J. Arnaldich Institut Cartogràfic i Geològic de Catalunya (ICGC)




Light pollution, hyperspectral, VNIR, digital photogrammetric camera, luminance.


This paper puts forward a methodology for the generation of high resolution luminance maps from simultaneous hyperspectral VNIR and photogrammetric imagery. The integration of hyperspectral radiance at ground level, properly weighted by the photopic-based coefficients, plus a sensor fusion strategy, provides for the first time a quantitative description of the luminous flux at high spatial resolution and with multi-angle geometry. Accordingly, this methodology allows following up any strategic policy aimed to improve urban illumination management and quantifying its effects in terms of energetic efficiency.


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Author Biography

L. Pipia, Institut Cartogràfic i Geològic de Catalunya

Programa Català d'Observació de la Terra (PCOT)


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Practical cases