Further optimizations of the GPU-based pixel purity index algorithm for hyperspectral unmixing

@inproceedings{Wu2012FurtherOO,
  title={Further optimizations of the GPU-based pixel purity index algorithm for hyperspectral unmixing},
  author={Xianyun Wu and Bormin Huang and Antonio Carlos Rodr{\'i}guez Plaza and Yunsong Li and Chengke Wu},
  booktitle={Other Conferences},
  year={2012}
}
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), available in the ENVI software from Exelis Visual Information Solutions. Although the algorithm has been widely used in the spectral unmixing community, it is highly time consuming as its precision increases asymptotically. Due to its high computational complexity, the PPI algorithm has been recently implemented in… CONTINUE READING
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