28 May 2020 Multiscale dual-level network for hyperspectral image classification
Ying He, Wei Su, Xiyun Li, Kun Zhan
Author Affiliations +
Abstract

We propose a new dual-level convolutional neural network model based on Inception modules and residual connections. First, Inception has filters with different kernel sizes, and its output feature maps contain different scales of receptive fields. The feature map with the wide receptive field receives the global information, while the feature map with the small receptive field contains some local information. The multiscale feature provides more comprehensive information. Second, with the help of residual connections, the training process is simple and can avoid overfitting. Third, the proposed network adopts two levels, i.e., a low level and a high level, and uses the feature fusion operation to take full advantage of the complementary and correlated information of the two levels. Fourth, we combine the spatial features and the spectral features of hyperspectral image (HSI). The pixels to be classified with their neighborhood information serve as the input of the neural network to realize spectral–spatial classification for HSI. Experimental results show that our model performs better than other state-of-the-art methods.

© 2020 SPIE and IS&T 1017-9909/2020/$28.00© 2020 SPIE and IS&T
Ying He, Wei Su, Xiyun Li, and Kun Zhan "Multiscale dual-level network for hyperspectral image classification," Journal of Electronic Imaging 29(3), 033008 (28 May 2020). https://doi.org/10.1117/1.JEI.29.3.033008
Received: 21 January 2020; Accepted: 19 May 2020; Published: 28 May 2020
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Image classification

Hyperspectral imaging

Convolution

Neural networks

Feature extraction

Network architectures

Convolutional neural networks

Back to Top