The Novel Gravitational Mass Weighted PCA Technique for Feature Extraction in Hyperspectral Data Classification
Nandhini K1, Porkodi R2
1Nandhini K, Department of Computer Science, Bharathiar University, Coimbatore (Tamil Nadu), India.
2Porkodi R, Department of Computer Science, Bharathiar University, Coimbatore (Tamil Nadu), India.
Manuscript received on 25 August 2019 | Revised Manuscript received on 01 September 2019 | Manuscript Published on 14 September 2019 | PP: 250-255 | Volume-8 Issue-5S3, July 2019 | Retrieval Number: E10560785S319/19©BEIESP | DOI: 10.35940/ijeat.E1056.0785S319
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Abstract: Recent advancements in the imaging spectrometer collect both spatial and spectral information which creates a huge dimensionality. The heavy spectral information creates to build a classifier for discerning between the materials in the scene. The minimum number of training labels always in an exchange between the spectral information and the performance is called the Hughes effect. Also the redundant of spectral information and noisy data presents in the hyperspectral scene. The above issues are overcome using feature extraction and feature selection methods which play a major role in the reduction of dimensionality. This paper proposes the novel fusion Gravitational Mass Weighted Principal Component Analysis (GMWPCA) techniques for hyperspectral data dimensionality. Also, this paper presents the deep insight about the feature extraction techniques in hyperspectral data of both supervised and unsupervised learning methods and experimental analysis in AVIRIS Indian Pines hyperspectral dataset by employing PCA, Probability PCA, LDA, and proposed techniques. The 93.63 % high accuracy achieved by using a novel proposed method.
Keywords: Feature Extraction, Gravitational search Algorithm, Gravitational Weighted Mass PCA, Hyperspectral Data, PCA.
Scope of the Article: Classification