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• W3208061707 abstract "Hyperspectral images contain distinguishing spectral information and show great potential in the anomaly detection (AD) task which aims to extract discrepant targets from the background. However, most of the popular hyperspectral AD techniques are time consuming and suffer from poor detection performance due to noise disturbance. To address these issues, we propose an efficient and robust AD method for hyperspectral images. In our framework, principal component analysis (PCA) is adopted for spectral dimensionality reduction and to enhance the anti-noise ability. An improved guided filter with edge weight is constructed to purify the background and highlight the potential anomalies. Moreover, a diagonal matrix operation is designed to quickly accumulate the energy of each pixel and efficiently locate the abnormal targets. Extensive experiments conducted on the real-world hyperspectral datasets qualitatively and quantitatively demonstrate that, compared with the existing state-of-the-art approaches, the proposed method achieves higher detection accuracy with faster detection speed which verifies the superiority and effectiveness of the proposed method." @default.
• W3208061707 created "2021-11-08" @default.
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• W3208061707 date "2021-10-22" @default.
• W3208061707 modified "2023-10-06" @default.
• W3208061707 title "An Efficient and Robust Framework for Hyperspectral Anomaly Detection" @default.
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• W3208061707 doi "https://doi.org/10.3390/rs13214247" @default.
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