This viewgraph presentation reviews the classification of Remote Sensing data in relation to epidemiology.  Classification is a way to reduce the dimensionality and precision to something a human can understand.  Classification changes SCALAR data into  NOMINAL data

Rickman, Douglas L.

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https://ntrs.nasa.gov/search.jsp?R=20080023781 2019-08-30T04:36:40+00:00Z
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These geophysicl8-1::J)'t¢lperties:are::partt@tIY.coptroUed by things of
interest to epidemiolo:gis-tS, sucha:$veg,~~ati6n ... '.
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The actual remote sensing data can be used directly or ....
• It can be classified.
•. It can be integrated into models.
• It can be converted into products.
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. In practice the bands are correlated and all
the available dynamic range is not used.
Practically, each pixel has only one of
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Classificatton changes SCALAR datainto·N·OM·I'NAL data!
The names used come from a FEATURE SPACE.
The names and the feature space: 'are abstractions!
Converslon fro:m sea'iar tonomin.al loses
informatio·nandint:ro:duces error
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How strong is the relationship
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This can cause
some fascinating
and entertaining
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'It is strongly recommendeqthatepiCh~m-idt9g,iC~I?~t·iidiesutillze; the full
information content, of the'remote :sensing, -rn:ate-rial.
• This means using -the :fuUdi'mensionalityor some statisticalty
defensible expression of the total or a derived product. ,
• The computational'burden, which 25 yeats: ago was huge, is now
easily handled by ordinary desktop systems.
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ht1p:l/www.ghcc,msfc,nasa.gov/ follow AppHPations: Health and Environment link to
http://weather.mSfGi!Jgsa,g9v/be:Hx/hel1x__ho~e1.htrnl
· Current Significant Public Health p'artners
Leslie McC.lure~ University of Alabam~a, BirrrHngham
Judith QuaUers, Centers for Disease Control and Prevention
Amanda Niskar, Tel Aviv University
sm Sprigg, Univen~ity of Arizona
Stan Motain, University of New Mexic;o . :::.<::::: .. :: .... :...... ..
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Remote Sensing Information Classification
D. L. Rickman
Proceedings of HELIX-Israel Kick-Off Workshop,
Israel, 5/29/2008-5/29/2008
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Remote Sensing Information Classification

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