Monday, November 21, 2016

IT6003 Multimedia Compression Techniques Nov Dec 2016 Important Questions

Important questions for Nov Dec 2016 IT6003 Multimedia Compression Techniques examinations conducting by Anna University Chennai
07th Semester / Seventh Semester / IV Year
Department of Information Technology
IT6003 Multimedia Compression Techniques
(Regulation 2013)
Nov Dec 2016 Important Questions

Important 16 Marks Questions with answers (All five units) are listed for IT6003 Multimedia Compression Techniques subject

1. i) Discuss the importance of text in a multimedia representation
ii) Compare a type face and a font
iii) Discuss font encoding system and HTML character encoding standards

2. State the meaning of the following
(i) unformulated / plain text (ii) formatted / rich text (iii) hyper text (iv) VOIP

3. With the aid of diagrams, describe the following digitization formats
(i) 4 : 2 : 2 (ii) 4 : 2 : 0 (iii) SIF iv) CIF. For each format state and temporal resolution and the sampling rate used for the luminance and the 2 color difference signals.

4. Assuming the bandwidth of a speech signal is from 50 HZ through to 10 KHZ and that of a music signal is from 15 HZ through to 20 KHZ, derive the bit rate that is generated by the digitization
procedure in each care assuming the Nyquist sampling rate is used with 12 bits per sample for the speech signal of 16 bits per sample for the music signal. Derive the memory required to store a 10
Minutes passage of stereophonic music

5. i) Discuss the origins of cel animation
ii) Short notes on (i) Kinematics (ii) Morphing

6. i) With the aid of schematic diagram, explain the operation of a basic DPCM Signal encoder and decoder 10 Remembering BTL1
ii) Include in your explanation the source of error that can arise.

7. i) Explain the principles operation of a third order DPCM scheme.
b Explain how the performance of a basic DPCM scheme can be improved by utilizing a more accurate version of the previous signal.

8. Explain the principles on which LPC coders are based. Hence with the aid of a schematic diagram of an LPC encoder and decoder, identifying the perception parameters and associated vocal tract excitation parameter that are used.

9. In relation to the encoding procedure of I, P, B- frames, explain the meaning and use of the following terms. (i) I – Frame (ii) Macro block (iii) Target frame (iv) Preceding reference frame (v)Succeeding reference frame (vi) Motion vector (vii) Prediction error (viii) GOP

10. Describe the following relating to the H.263 video compression standard assuming the QCIF
(i) The no. of pixels per frame (ii) The no. of GOBs per frame (iii) The encoding of a PB frame (iv) Unrestricted motion vectors

11. Explain the meaning of the following terms relating to text compression algorithm. (i) Static coding (ii) Dynamic / adaptive coding

12. Explain the meaning of the following terms relating to statistical encoding
(i) Prefix property (ii) Run Length coding (iii) Shanno's formula (iv) Coding efficiency

13. A discrete memory less source has 5 symbols x1, x2, x3, x4, x5 with probabilities 0.4, 0.19, 0.16, 0.15, 0.1 respectively attached to every symbol. Construct a Shannon Fano code for the source and calculate code efficiency

14. Explain the meaning of the following terms relating to compression.(i).Source encoders & destination decoders (ii) Loss less & lossy compression (iii) Entropy encoding (iv) Source encoding

15. i) Describe the principle of TIFF and its application domain.
ii) Demonstrate the basic mode of operation of GIF

16. Find the meaning of the source descriptor items used in RTCP source description packet. Specifically find the meaning of CNAME, NAME, EMAIL, PHONE, LOC, TOOL, NOTE & PRIV.

17. i) Why VOIP?
ii) Explain the basic of IP transport

18. Discuss how SIP is used in the transmission multimedia.

19. Can you say UDP and RTP is the same as TCP? Justify.

20. How the call establishment will be carried out in H323?

21. i) Explain interactivity for streaming stored audio/video and for real time interactive Audio and Video?
ii) Short note on (i) Real time streaming protocol (ii) Decompression (iii) jitter removal (iv) Quantization

22. List RTCP packet types and briefly explain the information contained in each of these packet types

23. Explain intserv model and per-flow reservation of resources?

24. Short note on :(i) Leaky bucket (ii) WFQ (i) SIP (iv) H 323

25. How is RTSP different from HTTP? For example is HTTP in band or out-of-band? Does RTSP maintain state information about the client (Consider the pause/resume function) ? Explain.

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