Transcription of Elements of Visual Image Interpretation
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CHAPTER 5: Elements of Visual Image InterpretationREFERENCE: remote sensing of the Environment John R. Jensen (2007)Second EditionPearson Prentice HallReasons why photo/ Image Interpretation are powerful scientific tools: scale: aerial/regional perspective; three-dimensional depth perception; ability to obtain knowledge beyond our human Visual perception; ability to obtain a historical Image record to document OUR PERSPECTIVECHANGING OUR PERSPECTIVELA PARGUERA FROM A PLANELA PARGUERA FROM SPACET hematic MapperPUERTO RICO FROM THE SHUTTLEEVERYTHING IS ABOUT SCALESEARTH FROM SPACET hree-dimensional Depth PerceptionObtaining Knowledge Beyond our Human Visual PerceptionHistorical Image Record and Change Detection DocumentationElements of Image InterpretationElements of Image Interpretation -Tone and ColorElements of Image Interpretation -Tone and ColorGreenRedNear-infraredColor composite RGB = green, red.
image acquired by remote sensing ultimately depends upon detection of differences in the brightness of objects and the features. Radiometric Resolution: This is the sensitivity to small differences in the radiation of an observed object. •MSS = 6 bits •Landsat TM = 8 bits •IKONOS – 11 bits •ERS SAR = 16 bits A KEY CONCEPT OF REMOTE ...
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