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(b) In the figure below you see two images (1 and 2) and two Fourier spectra (a and b). The Fourier spectra are the magnitude of the Discrete Fourier Trans- form (DTF), displayed centered with a logarithmic brightness scale. Which image belongs to which Fourier spectrum and why? (1) (b) The figure below shows a raw image of the rings of Saturn taken by the Cassini spacecraft (left) and its DTF spectrum, centered with a logarithmic bright- ness scale (right). Discuss various features seen in the spectrum.

(b) In the figure below you see two images (1 and 2) and two Fourier spectra (a and b). The Fourier spectra are the magnitude of the Discrete Fourier Trans- form (DTF), displayed centered with a logarithmic brightness scale. Which image belongs to which Fourier spectrum and why? (1) (b) The figure below shows a raw image of the rings of Saturn taken by the Cassini spacecraft (left) and its DTF spectrum, centered with a logarithmic bright- ness scale (right). Discuss various features seen in the spectrum.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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5. (a) In the figure below you see two images (1 and 2) and two Fourier spectra (a and b). The Fourier spectra are the magnitude of the Discrete Fourier Trans- form (DTF), displayed centered with a logarithmic brightness scale. Which image belongs to which Fourier spectrum and why? (b) (c) (2) (a) (b) The figure below shows a raw image of the rings of Saturn taken by the Cassini spacecraft (left) and its DTF spectrum, centered with a logarithmic bright- ness scale (right). Discuss various features seen in the spectrum. (1) The Cassini image shows evidence of periodic noise in the form of hori- zontal banding. How would you try to remove this noise using the inverse DTF? Illustrate your explanation with a sketch.
Transcribed Image Text:5. (a) In the figure below you see two images (1 and 2) and two Fourier spectra (a and b). The Fourier spectra are the magnitude of the Discrete Fourier Trans- form (DTF), displayed centered with a logarithmic brightness scale. Which image belongs to which Fourier spectrum and why? (b) (c) (2) (a) (b) The figure below shows a raw image of the rings of Saturn taken by the Cassini spacecraft (left) and its DTF spectrum, centered with a logarithmic bright- ness scale (right). Discuss various features seen in the spectrum. (1) The Cassini image shows evidence of periodic noise in the form of hori- zontal banding. How would you try to remove this noise using the inverse DTF? Illustrate your explanation with a sketch.
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