Search results for "spectral unmixing"

showing 2 items of 2 documents

Unmixing methods in novel applications of spectral imaging

2014

hyperspectral imagingrikospaikkaimaging spectrometryspektrografilaskennallinen vaativuusympäristön tilaanalysmetoderihosyöpäskin abnormalitiesesitutkintaspectral unmixinghudcancerbrottsplatsenvironmental monitoringspektrografiamiljöövervakningspektral avbildningtarget detectionmiljöns tillståndspektrikuvausanalyysimenetelmätförundersökningforensicskuvantaminenympäristövalvontahyperspektrikuvaus
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Cloud screening and multitemporal unmixing of MERIS FR data

2007

The operational use of MERIS images can be hampered by the presence of clouds. This work presents a cloud screening algorithm that takes advantage of the high spectral and radiometric resolutions of MERIS and the specific location of some of its bands to increase the cloud detection accuracy. Moreover, the proposed algorithm provides a per-pixel probabilistic map of cloud abundance rather than a binary cloud presence flag. In order to test the proposed algorithm we propose a cloud screening validation method based on temporal series. In addition, we evaluate the impact of the cloud screening in a multitemporal unmixing application, where a temporal series of MERIS FR images acquired over Th…

ComputingMilieux_GENERALMERISLaboratory of Geo-information Science and Remote SensingCloud screeningMultispectral images550 - Earth sciencesLaboratorium voor Geo-informatiekunde en Remote SensingSub-pixel classificationPE&RCAstrophysics::Galaxy AstrophysicsSpectral unmixing
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