TY - EJOU AU - T1 - The Effect of Impulse Denoising on Geometric Based Hyperspectral Unmixing T2 - International Journal of Natural Sciences Research PY - 2016 VL - 4 IS - 5 SN - 2311-4746 AB - Hyperspectral unmixing is a process to find number of spectral component (called endmember), estimation of endmember signatures and their abundance fractions in each pixel on the scene. Geometric based algorithms are developed for hyperspectral unmixing problem in the literature. The distribution of spectra (points in n-dimensional scatterplot) can be used to estimate endmember signatures geometrically. Impulse denoising before unmixing process can help getting better results for endmember extraction. For this reason, General Prior Algorithm (GAP) is used before unmixing process. Experiments using real data demonstrate that this preprocessing step provided better results for endmember estimation. KW - Hyperspectral unmixing KW - Vertex component analysis KW - Minimum volume simplex analysis KW - N-finder KW - A variable splitting augmented lagrangian approach KW - General prior algorithm. DO - 10.18488/journal.63/2016.4.5/63.5.83.91