Journal Article

·2016

Local averaging based feature extraction on hyperspectral image data

Ünsal Gökdağ YTU , Gökhan Bilgin YTU

Abstract

This paper focuses on the land cover/usage area classification problem by using local averaging for feature extraction method. In hyperspectral image classification tasks, spatial information is also useful as much as spectral information. A pipeline of methods is utilized using Fisher's discriminant analysis for dimension reduction, z-score value for central limiting and support vector machines and extreme learning machines for classification. The classification accuracies on transformed data set are outperforming previous works by achieving %99.51 success ratio on for support vector machines and %99.73 for extreme learning machines on 10-fold cross validation. the proposed method increases classification accuracy significantly while reducing the dimension of the original data by %95.

Keywords

Hyperspectral imaging Pattern recognition (psychology) Support vector machine Artificial intelligence Feature extraction Computer science Discriminant Dimensionality reduction Linear discriminant analysis Dimension (graph theory) Extreme learning machine Data set Pipeline (software) Contextual image classification Data mining Feature (linguistics) Image (mathematics) Mathematics Artificial neural network

Subject Areas

Remote-Sensing Image Classification ·Media Technology ·Physical Sciences
Machine Learning and ELM ·Artificial Intelligence ·Physical Sciences
Face and Expression Recognition ·Computer Vision and Pattern Recognition ·Physical Sciences

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