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

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

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© The Institution of Electrical Engineers
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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.

Inspec keywords: computerised picture processing

Other keywords: multichannel image data; microprocessor control; covariance statistics; stored data; LANDSAT multispectral data; digital video images; principal components transformation; real-time analogue video signals; electronic hardware

Subjects: Pattern recognition; Communications computing; Optical information, image and video signal processing

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