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LSTM Based Adaptive Filtering for Reduced Prediction Errors of Hyperspectral Images

Zhuocheng Jiang,W. Pan,Hongda Shen

Published 2018 in International Conference on Wireless for Space and Extreme Environments

ABSTRACT

While adaptive filtering has been widely used in predictive lossless compression of hyperspectral images, the prediction performance depends heavily on the filtering weights estimated in a step-by-step manner. Traditional filtering methods do not take into account the longer-term dependencies of the data to be predicted. Motivated by the effectiveness of recurrent neural networks in capturing data memory for time series prediction, we design LSTM (long short-term memory) networks that can learn the data dependencies indirectly from filter weight variations. We then use the trained networks to regulate the weights generated by conventional filtering schemes through a close-loop configuration. We compare the proposed method with two other memory-less algorithms, including the popular Least Mean Square (LMS) filtering method, as well as its variant based on the maximum correntropy criterion (MCC). Simulation results on two publicly available datasets show that the proposed LSTM based filtering method can achieve smaller prediction errors.

PUBLICATION RECORD

  • Publication year

    2018

  • Venue

    International Conference on Wireless for Space and Extreme Environments

  • Publication date

    2018-12-01

  • Fields of study

    Computer Science, Engineering, Environmental Science

  • Identifiers
    DOI 10.1109/WiSEE.2018.8637354
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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