Real-Time Implementation of the Pixel Purity Index Algorithm for Endmember Identification on GPUs

@article{Wu2014RealTimeIO,
  title={Real-Time Implementation of the Pixel Purity Index Algorithm for Endmember Identification on GPUs},
  author={Xianyun Wu and Bormin Huang and Antonio J. Plaza and Yunsong Li and Chengke Wu},
  journal={IEEE Geoscience and Remote Sensing Letters},
  year={2014},
  volume={11},
  pages={955-959}
}
Spectral unmixing amounts to automatically finding the signatures of pure spectral components (called endmembers in the hyperspectral imaging literature) and their associated abundance fractions in each pixel of the hyperspectral image. Many algorithms have been proposed to automatically find spectral endmembers in hyperspectral data sets. Perhaps one of the most popular ones is the pixel purity index (PPI), which is available in the ENVI software from Exelis Visual Information Solutions. This… CONTINUE READING

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