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Estimating the proportions of objects within a single resolution element of a multispectral scanner.
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1971
Year
EngineeringGeometric RelationsMultispectral ImagingImage AnalysisMaximum Likelihood EstimateCalibrationResolution CellMulti-resolution ModelingBiostatisticsComputational ImagingComputational GeometryMultispectral ScannerRadiologyGeometric ModelingReflectance ModelingMachine VisionMedical ImagingSynthetic Aperture RadarSpectral ImagingSingle Resolution ElementRadarAerospace EngineeringNatural SciencesDigital PhotogrammetryRemote SensingOptical Remote Sensing3D Scanning
Description of a procedu*e designed to estimate the proportions of objects and materials contained in the instantaneous field of view (IFOV) of an airborne multispectral device. A mathematical model is derived to relate the signature of a combination of materials in a resolution cell to the signatures of the individual materials considered. Estimation algorithms are generated and digital computer programs are prepared to apply the algorithms in the description of the effects which are observed when several objects are viewed simultaneously. The maximum likelihood estimate of the proportions of various individual materials in an IFOV is discussed. A simulation program is proposed for such estimates. A procedure for analyzing the geometric relations of signatures which affect the accuracy of estimates is set forth.