Paper
11 September 2024 Semi-supervised classification method for PolSAR based on vision transformer (ViT)
Xiangshen Li, Jie Yu, Lihua Han
Author Affiliations +
Proceedings Volume 13253, Fourth International Conference on Signal Image Processing and Communication (ICSIPC 2024); 132530N (2024) https://doi.org/10.1117/12.3040990
Event: 4th International Conference on Signal Image Processing and Communication, 2024, Xi'an, China
Abstract
Semi-supervised classification methods generate pseudo-labels from unlabeled data, where pseudo-labels' precision is vital for successful classification outcomes. Addressing the challenge of inaccuracies in pseudo-label categories during training, this paper introduces a semi-supervised classification strategy for PolSAR images, leveraging the Vision Transformer (ViT) technology. In this study, the Simple Linear Iterative Clustering (SLIC) method was applied to create superpixel blocks with distinct boundaries and organized structures, facilitating the generation of pseudo-labels with a correctness rate of 85.9%. This paper introduces the Vision Transformer (ViT) network, capitalizing on its multi-head attention mechanism. This approach enhances global image information extraction while simultaneously addressing local details for pseudo-label training. Specifically, on the Flevoland data set, an increase in pseudo-label category accuracy of 7.09% and 5.47% was achieved. For the Wuhan Tongshun River dataset, improvements of 2.44% and 3.41% in pseudo-label category accuracy were recorded, thereby elevating the precision of PolSAR semi-supervised classification.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Xiangshen Li, Jie Yu, and Lihua Han "Semi-supervised classification method for PolSAR based on vision transformer (ViT)", Proc. SPIE 13253, Fourth International Conference on Signal Image Processing and Communication (ICSIPC 2024), 132530N (11 September 2024); https://doi.org/10.1117/12.3040990
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KEYWORDS
Transformers

Buildings

Image classification

Deep learning

Land cover

Image segmentation

Matrices

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