Seamless Mosaicking of Multi-strip Airborne Hyperspectral Images Based on Hapke Model
The needs of high-precision earth observation have led to the development of high-resolution and high-dimensionality RS data and greatly promoted the standard for processing and application of airborne hyperspectral images. The varying brightness gradients of the airborne images cause problems in generating “seamless” mosaic for hyperspectral surveys, which severely affect the radiometric consistencies for subsequent analyses. We present a semiempirical method to generate seamless mosaicking of multi-strip airborne hyperspectral images and introduce the model principle as well as the calculation process in detail. The experimental results based on HyMap images in Lop Nor area show that this method can efficiently remove the illumination gradient in both single image and between multi-scene images. Moreover, the MNF-transformed images and spectrum from overlap were chosen to assess the model; the results show that the Hapke-based model can be used to improve the airborne hyperspectral mosaicking effect and have great potential to subsequent quantitative applications.
KeywordsAirborne Hyperspectral images Hapke HyMap Mosaicking
This work was supported in partly by the Major Projects of High-resolution Earth Observation System (04-Y20A35-9001-15/17) and jointly by the China Geological Survey Program (121201003000150008).
- 3.Rogge D, Bachmann M, Rivard B, Feng J (2012) Hyperspectral flight-line leveling and scattering correction for image mosaics. In: Geoscience and remote sensing symposium, IEEE, vol 22, pp 4094–4097Google Scholar
- 8.Kruse FA, Boardman JW, Lefkoff AB, Young JM, et al. (1985) HyMap: an Australian hyperspectral sensor solving global problems-results from USA HyMap data acquisitionsGoogle Scholar
- 10.Hicks MD, Buratti BJ, Nettles J, Staid M, Sunshine J, Pieters CM et al (2011) A photometric function for analysis of lunar images in the visual and infrared based on moon mineralogy mapper observations. Journal of Geophysical Research Planets 116(E6):1281–1292Google Scholar