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19 December 2013 An improved anomaly detection and classification algorithm of high-order statistics for hyperspectral images
Li Lu, Wen Sheng, Xianzhi Zhang, Shihua Liu
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Proceedings Volume 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology; 90451H (2013) https://doi.org/10.1117/12.2037282
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China
Abstract
An improved anomaly detection and classification algorithm based on high-order statistics is presented. In order to solve some challenging problems, such as initializing projection, quantifying of anomaly classes and evaluating the performances. Firstly, initialize the projection vectors used by the idea of global RX algorithm. It gives priority to the detection of the anomalies with powerful energy. Secondly, analyze the current data whether have anomaly information or not so that it determines the terminal conditions and the quantities of anomaly classes. Thirdly, use two methods to evaluate the classification performance quantitatively. One is to match the results in the condition of reference images to evaluate the effects of anomaly detection and background suppression, the other is to segment the resultant images to calculate some features such as the classification rate, the number of detected anomalies and the number of false alarms. Simulated and Experimental results show that the improved algorithm has the capability of robustness and better anomaly detection performances under complex unknown background than traditional algorithm does.
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Li Lu, Wen Sheng, Xianzhi Zhang, and Shihua Liu "An improved anomaly detection and classification algorithm of high-order statistics for hyperspectral images", Proc. SPIE 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 90451H (19 December 2013); https://doi.org/10.1117/12.2037282
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KEYWORDS
Detection and tracking algorithms
Image classification
Image segmentation
Target detection
Hyperspectral imaging
Evolutionary algorithms
Image processing
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