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Electronic hardware implementation of the principal components transformation for multichannel image data

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1 Author(s)
Canas, A.A.D. ; Imperial College of Science & Technology, Optics Section, Blackett Laboratory, London, UK

An implementation of the principal components transformation is presented which makes use of analogue and digital electronic hardware under the control of a microprocessor. The hardware is used to collect covariance statistics from a multichannel set of digital video images and to perform the actual transformation on real-time analogue video signals derived from the stored data. This approach offers considerable advantages over a completely software based system in terms of speed and cost. An example of the use of the system for the analysis of Landsat multispectral data is presented.

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Communications, Radar and Signal Processing, IEE Proceedings F  (Volume:131 ,  Issue: 7 )