Code: C-21 / T-12                                                                 Subject: MULTIMEDIA SYSTEMS

Time: 3 Hours                                                                                                     Max. Marks: 100

 

NOTE: There are 11 Questions in all.

 

ˇ      Question 1 is compulsory and carries 16 marks.

ˇ      Answer any THREE Questions each from Part I and Part II. Each of these questions carries 14 marks.

ˇ      Any required data not explicitly given, may be suitably assumed and stated.

 

 

Q.1       (A)  Say True or False:                                                                                       (1 x 8 = 8)            

 

             a.  Quest is an animation Package.

FALSE

 

TRUE

 
                                                                                                                                                                                                                                                                                                                              

 

b.      MPEG-2 has high quality video data bit rate of 4 mbps.

TRUE

 

FALSE

 
         

                    

c.       One of common similarity between MPEG-4 and MPEG-7 is on audio visual object links.

TRUE

 

FALSE

 
         

 

d.      IP multicast enables multicast on Internet

TRUE

 

FALSE

 
          

                    

e.       Files are usually organized in Directories

TRUE

 

FALSE

 
         

            

f.        Mbone is Multicast Backbone

TRUE

 

FALSE

 
         

            

g.       Sprites are not used in Animation

TRUE

 

FALSE

 
         

                    

h.       MIDI is an digital interface instrument

TRUE

 

FALSE

 
         

            

 

             (B) Fill in the blanks                                                                                             (1 x 8=8)                        

 

 

i.         In image compression ___________ technology with low frequency and with sharp edges are used.

j.        A CD-DA play time is at least __________ minutes.

k.      ____________ is a technology that includes all coding algorithms.

l.         The spiral shaped CD track consists of __________ windings.

m.     UDP stands for  ________________.

 

n.       Motion Flicker are defined as  _______________________.

 

o.      RTP stands for  ____________________.

 

p.      A ________________ process is a process which delivers the results of the processing in a given time-span.

                                                                                                                                                                                                               

PART I

Answer any THREE Questions. Each question carries 14 marks.

 

  Q.2     a.   Define a multimedia system.  What are the main properties of multimedia systems?              (9)

 

             b.   How are the MIDI messages passed from device to device?                               (5)

 

  Q.3     a.   What is the role of image synthesis in image processing?                                      (7)

 

             b.   How do you extract descriptions from images that are necessary for higher level scene analysis?                                                                 (7)

 

  Q.4     a.   Write notes on                                    

 

(i)       Lossy sequential DCT based image processing.

(ii)  FDDI.

(iii) ISDN.                                                                                                       (10)                                                                                             

 

             b.   Is data compression same as data reduction method?  Why?                               (4)

            

  Q.5     a.   Differentiate JPEG and MPEG.                                                                          (6)

 

             b.   What are the various types of broadcast schemes available?                                (8)

 

  Q.6     a.   MPEG-2-AAC (Advanced Audio Coding) standard is used for transparent sound reproduction.  Explain this statement.                                      (6)

       

             b.   Compare and contrast Multimedia authorizing systems with Word processors.                    (8)       

       

PART II

Answer any THREE Questions. Each question carries 14 marks.

 

  Q.7     a.   We wish to produce a graphic that is pleasing and easily readable.  Suppose we make the background color pink.  What color text front should we use to make the text most readable?  Justify your answer.     (6)

 

             b.   In block-based video coding, what takes more effort : compression or decompression?  Briefly explain why.                                                           (8)

            

  Q.8     a.   What is the relationship between Hypermedia and hypertext?                              (4)

 

             b.   What is QoS?  Explain in detail.                                                                       (10)

 

  Q.9           a.                                                        What do you mean by LDU in Synchronization?      (6)

 

             b.   Differentiate between intra and inter object synchronization.                               (8)

 

  Q.10   a.   Explain Entropy coding, Source Coding and Hybrid coding in data compression.                (10)

 

             b.   What are the properties of MDBMS?  (4)

       

  Q.11   a.   Differentiate between MPEG-1 and H-261.                                                       (4)

 

b.      Write notes on

 

(i)                  Real time systems.                  

(ii)                Process Management.                                                                          (10)