Biju Patnaik University of Technology 2008-7th Sem B.Tech Digital Image & Speech Processing - Question Paper
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Total number of printed pages4 B. Tech
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CP EC 5402
Seventh Semester Examination - 2008 DIGITAL IMAGE AND SPEECH PROCESSING Full Marks-70
Time-3.Hours
Answer Question No. 1 which fs compulsofy and any five from the rest.
The figures in the right-hand margin indicate marks.
1. Answer the following questions : 2x10
(i) What do mean by Gray level resolution ?
(ii) What is histogram based processing ?
(iii) How a discrete time signal is different than
a digital signal?
P.T.O.
(iv) How wavelet transform is different from Fourier transform ?
(v) What is Image Morphology 7
(v!) What are the advantages of F!R systems over MR systems?
(vti) Give the mathematical models of digital image and digital speech.
(viii) What is image blur ? How it can be removed ?
(ix) What Is adaptive quantization ?
(x) Write the principle of a speaker recognition system ?
2. (a) Explain different image form at ion mode Is,
7
(b) What are the components of an Image Processing system ? 3
3. Explain how image enhancement is achieved using Gray level transformation and using logical operations. 10
Describe the image degradation model1 using a neat diagram. Explain different image restoration techniques. 10
5. (a) Suppose a digital image is subjected to
jr.
histogram equalization. Show that the second pass of histogram equalization will produce the same result as the first pass,
5
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(b) How DFT is different form DTFT ? Describe the properties of DFT, 5
6. Explain different time domain methods of speech processing. 10
7. (a) What are the basic principles of Linear
Predictive Analysis ? 7
(b) G ive a block diagram for speech produc*
3
Hon.
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Write short notes on the following: 2,5x4 {ij Color image processing Jjj) (mage Compression v.(iii) Homomorphic Filtering
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i
Ii
i
(iv) Multispectraliimage Processing.
F J T A
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| Earning: Approval pending. |
