Download JNTUA M.Tech 2nd Sem Supply 2018 Feb 9D06205 Image And Video Processing Question Paper

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Code: 9D06205

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Time: 3 hours

M.Tech II Semester Supplementary Examinations February 2018

IMAGE & VIDEO PROCESSING

(Common to DSCE, DECS, ECE & Com Sys)

(For students admitted in 2012, 2013, 2014, 2015 & 2016 only)

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Answer any FIVE questions

All questions carry equal marks

Max. Marks: 60

1. The image f(x, y) = 4 cos(4πx) cos (6πy) is sampled with ∆x = Ay = 0.1. The sampled image is reconstructed with an ideal low pass filter with cut off frequencies of ±1/2 ∆x and ±1/2 ∆y. Find the reconstructed image.
2. State and prove following properties of 2D-DFT:
   1. Translation.

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   2. Periodicity.
   3. Conjugate symmetry.
3. Suppose that you form a low pass spatial filter that averages the 4-neighbors of point (x, y), but excludes the point (x, y) itself.
   1. Find the equivalent filter H(u, v) in the frequency domain.
   2. Show that your result is a low pass filter.

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4. 1. Explain the concept of image degradation model.
   2. Discuss the concept of wiener filtering.
5. Discuss different types of clustering techniques related to image segmentation.

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6. 1. Discuss different types of image redundancies.
   2. Discuss about image fidelity criterion
7. Formulate the Shannon - Fano code for the word DADDY.
8. Discuss about sampling of video signals.

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