SRM University 2007 B.Tech Electronics and Communications Engineering EC456- MULTIMEDIA COMMUNICATION - Question Paper

EC456- MULTIMEDIA COMMUNICATION
ques. BANK

UNIT – I

CONCEPTS OF MULTIMEDIA
PART – A

1. describe Multimedia.
2. List a few of Multimedia applications.
3. List the multimedia communication networks.
4. State Nyquist sampling theorem & Nyquist rate.
5. What do you mean by Hypertext?
6. What is compression?
7. Compare lossy & lossless compression.
8. Using Huffman coding, derive code set for subsequent. 0.3, 0.3, 0.2, 0.1,0.1.
9. describe additive & subtractive color mixing.
10. What is dynamic Huffman coding used in text?
11. What is sprite Animation?
12. describe luminance & chrominance.
13. What is discrete cosine transform?
14. describe text & image.
15. describe audio & video.
16. Compare formatted & unformatted text.
17. What is rendering & clip art?
18. What is flicker & frame refresh rate?
19. What is NTSC & PAL?
20. What is sample & hold, Quantizer?
21. describe aspect ratio & pixel depth.
22. What is composite video signal?
23. describe Run – length encoding & statistical encoding.
24. What is synchronization?

PART – B

1. Encode using static Huffman coding for subsequent.
0.25, 0.25, 0.14, 0.14, 0.055, 0.055, 0.055, 0.055. Write the code word generation & construct Huffman code tree.
2. Develop Dynamic Huffman coding tree for subsequent sentence. “This is”
3. obtain the code word for subsequent text “went” using Arithmetic coding technique. e=0.3, n= 0.3, t=0.2, w=0.1, .=0.1 & discuss the coding operation in detail.
4. discuss the Dictionary models used for text compression with an example.
5. discuss in detail the concepts & kinds of animation.










UNIT – 2
DIGITAL AUDIO VIDEO AND GRAPHICS

Part A

1. Write the standards described by MPEG 1
2. Write the standards described by MPEG 2
3. Write the standards described by MPEG 4
4. elaborate I frames, P frames, B frames?
5. What is SIF?
6. What is CIF?
7. describe brightness, hue, saturation.
8. What is digital video editing?
9. What is digital video post production?
10. Compare vector graphics and bitmapped images
11. Write short notes on JBIG.
13. describe pitch, loudness.
14. Write the kinds of voice track excitation parameters.
15. describe frequency masking.
16. describe temporal masking.
17. What is LPC?
18. What is GIF?

Earning:   Approval pending.