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6 January 2020 Semantic segmentation of very high-resolution remote sensing image based on multiple band combinations and patchwise scene analysis
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Abstract

Large intraclass variance and low interclass variance are among the most challenging problems in very high-resolution (VHR) image classification. Semantic segmentation constructed in a deep convolution neural network is used as a classification algorithm conducted via end-to-end training, which combines spectral–spatial features and context information. However, large-scale remote sensing images cannot be directly processed because they are limited by GPU memory and segmentation algorithm. At the same time, classification using single band combinations is also unsatisfactory due to the extraordinary complex features of VHR images. Therefore, a method is proposed based on multiple band combinations and patchwise scene analysis. A complex remote sensing image can be considered as into a combination of simple scenes from multiple patchwise images. And optimal band combinations of each patchwise image are selected according to their scene. The segmentation results of each patchwise image are merged to get the desired results according to geographical coordinates. Our method is validated on the ISPRS 2-D Semantic Labeling dataset of Potsdam, on which results competitive with the state-of-the-art are obtained. The proposed scheme has strong universality and can be used for large-scale high-resolution remote sensing image classification.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 1931-3195/2020/$28.00 © 2020 SPIE
Zhen Zhang, Jue Huang, Tao Jiang, Baikai Sui, and Xinliang Pan "Semantic segmentation of very high-resolution remote sensing image based on multiple band combinations and patchwise scene analysis," Journal of Applied Remote Sensing 14(1), 016502 (6 January 2020). https://doi.org/10.1117/1.JRS.14.016502
Received: 6 August 2019; Accepted: 13 December 2019; Published: 6 January 2020
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