Bioucas-Dias, José M.Nascimento, Jose2016-04-272016-04-272005BIOUCAS-DIAS, José M.; NASCIMENTO, José M. P. - Estimation of signal subspace on hyperspectral data. Proceedings of SPIE - Conference on Image and Signal Processing for Remote Sensing XI. ISSN 0277-786X. Vol. 5982. 59820L-1-59820L8, 20050277-786Xhttp://hdl.handle.net/10400.21/6096Dimensionality reduction plays a crucial role in many hyperspectral data processing and analysis algorithms. This paper proposes a new mean squared error based approach to determine the signal subspace in hyperspectral imagery. The method first estimates the signal and noise correlations matrices, then it selects the subset of eigenvalues that best represents the signal subspace in the least square sense. The effectiveness of the proposed method is illustrated using simulated and real hyperspectral images.engDimensionality reductionModel selectionOrder selectionHyperspectral imageryLinear mixtureSignal subspaceconference object10.1117/12.620061