Question

17) Radiometric error in an image is introduced due to
(a) Source of illumination
(b) Emissions from the surface
(c) Inherent properties of sensor
(d) Geometry of the earth
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Answer 1

Answer:

Radiometric error in an image is introduced due to different aspects of brightness values of an image. Radiometric corrections are essential as there's a variation in the illumination of a scene.

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Answer 2

QUESTION:-

Radiometric error in an image is introduced due to

(a) Source of illumination

(b) Emissions from the surface

(c) Inherent properties of sensor

(d) Geometry of the earth

ANSWER:-

• (a) Source of illumination is the correct option

• Radiometric error in an image is introduced due to the Source of illumination

EXPLANATION:-

• Radiometric Errors are the distortion in the illumination values of the pixel through the illuminating source.

• Radiometric corrections are necessary as there are deviations of the illumination in a scene.

• It varies due to a deviation in the particular sensor as well as the setting that is used for acquiring the data. Thus, in these situations the calibration or in-flight measurements of the data is necessary.

• The distortions that are undergone by the images in value of recording at varied locations of the pixel are inferred as Radiometric Distortions

• Sometimes the pixel devices themselves affect internal Radiometric errors because of their standardized nature, these kinds of errors are also referred to as Systematic Errors.

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