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Spectral resolution this refers to the number of

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Spectral Resolution: This refers to the number of bands in the spectrum in which the instrument can take measurements. Human Eye = 3 channels (RGB) + 1 Pan. Landsat TM = 7 channels SeaWiFS = 8 channels AVIRIS = 224 channels.
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13 RADIOMETRIC DIFFERENTIATION - Examination of any 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. Landsat TM = 8 bits MODIS = 12 bits ERS SAR = 16 bits SPATIAL DIFFERENTIATION - Every sensor is limited in respect to the size of the smallest area that can be separately recorded as an entity on an image. Spatial Resolution: This represents the ability of the sensor to detect and distinguish small objects and fine detail in larger objects. Depends on the instrument's sensitivity and distance from the object, and defines the pixel size of a digital image. Landsat TM = 30 m AVHRR = 1 km Meteosat = 7 Km IKONOS = 1 m
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14 GEOMETRIC TRANSFORMATION - Every remotely sensed image represents a landscape in a specific geometric relationship determined by the design of the remote sensing instrument, specific operating conditions, terrain relief, and other factors. Each image includes positional errors caused by the perspective of the sensor optics, the motion of scanning optics, terrain relief, and Earth curvature. INTERCHANGEABILITY OF PICTORIAL AND DIGITAL FORMATS - Most remote sensing systems generate photograph-like images of the Earth's surface. Any such image can be represented in digital form by systematically subdividing the image into tiny areas of equal size and shape, then representing the brightness of these areas by discrete values.
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15 REMOTE SENSING INSTRUMENTATION
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Spectral Resolution This refers to the number of bands in...

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