74264-mt----image & Video Processing

NR

Code No: 74264/MT

M.Tech. – II Semester Regular Examinations, September, 2008 IMAGE AND VIDEO PROCESSING (VLSI & Embedded Systems) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b)

What is the need of sampling and quantization? Discuss about relationship between pixcels. Discuss about Gray level transformations.

2.a) b)

Explain clearly the inverse filter and wiener filter. Discuss clearly the concept of Histogram equivalization with an example.

3.a) b)

Distinguish between Dilation and Erosion. Explain the Hit or Miss transforms with suitable examples.

4.a) b)

What is meant by Image Compression? Explain the lossy coding. What is meant by Image segmentation? Explain about segmentation by morphological watersheds.

5.a) b)

Discuss about analog video raster and digital video. What is meant by video sampling? Discuss about conversion of signals sampled in different lattice.

6.a)

What is meant by video modeling? Discuss about two dimensional motion models. Explain clearly the pixel based motion estimation.

b) 7.a) b)

Discuss about wavelet transform based coding. What is meant by 2D motion estimation? Discuss the application of motion estimation in video coding.

8.

Write short notes on the following a) Scalar quantization b) Homomorphic filtering c) Error free coding. $$$