Bispectral analysis
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- For the bispectral analysis speckle imaging method see speckle masking
Bispectral analysis is describes observations made at two wavelengths. It is often used by NASA scientists to analyze elemental make up of atmosphere by analyzing the amount of light reflected and received through various color filters. By combining and removing two filters, much can be gleaned from only two filters. Through modern computerized interpolation, a third virtual filter can be created to recreate true color photographs that, while not particularly useful for scientific analysis, are popular for public display in textbooks and fund raising campaigns.
Bispectral analysis is also a form of EEG analysis used to monitor depth of anaesthesia.
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