Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2016-17 EEC069 Multimedia Systems Question Paper
B.TECH.
THEORY EXAMINATION (SEM?VIII) 2016-17
MULTIMEDIA SYSTEMS
T ime : 3 Hours Max. Marks : 100
Note .' Be precise in your answer. In case ofnumericalproblem assume data wherever not provided.
SECTION ? A
1. Explain the following: 10 x 2 = 20
(a) What is a pixel?
(b) What are dictionary?based compression techniques?
(c) Explain the term ?anti-aliasing?.
(d) What are three different technologies used to capture digital images?
(e) What is the difference between lossy and lossless compression?
(1) What is the difference between analog and digital Video?
(g) What is MPEG Standards?
(h) What are the advantages of using Quick Time?
(i) Explain the term Multimedia.
(j) Explain the term hypertexts.
SECTION ? B
2. Attempt any ?ve parts of the following questions: 5 x 10 = 50
(a) What factors determine the quality of the sound file? What steps are involved in
producing digital audio? Explain brie?y.
(b) An audio clip has duration of 8 minutes. The maximum frequency of the sound wave is
15 kHz. This is to be sampled using 8 bits per sample and in stereo mode. Estimate the
minimum data rate in KB/sec required playing back the digital file and the audio file
size in MB.
(c) State and explain the three main properties of a color source that the eye makes of.
Hence explain the meaning of the terms ?luminance?, ?chrominance?, and ?color
difference? and how the magnitude of each primary color present in the source is
derived from these.
(d) Discuss various Popular Audio and Video file formats.
(e) Differentiate between:-
(i) Interactive media and hyper media
(ii) Video and animation
(1) Discuss the relative advantages of arithmetic coding over Huffman coding. In what way
would you consider Huffman algorithm superior to arithmetic coding.
(g) A 15-inch monitor having an aspect ratio 4 : 3 has 1080 pixels along a single horizontal
line and a screen refresh rate of 60 Hz. Calculate its horizontal scan rate in kHz,
resolution in dpi and dot pitch in mm (1 inch = 2.54 cm).
(h) Brie?y explain why we need to be able to have less than 24?bit color and why this
makes for a problem. Generally, what do we need to do to adaptively transform 24?bit
color values to 8?bit ones?
SECTION ? C
Attempt any two of the following questions: 2 x 15 = 30
What are dictionary-based compress10n techniques?! How are they ditterent trom other
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conventional coding schemesmw?mg?memrits and Wj?lg??mgpgd?sed
compression schemes. Discuss the genesis of dictionary-based compression schemes.
What is the basic concept of color and also explain the Video capturing technique.
Derive the bit rate that results from the digitization of a 525-line and a 625-line system using
the 4: 2: 0 digitization format and interlaced seaming. Hence derive the amount of memory
required to store a 2-hour movie/Video.
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This post was last modified on 30 January 2020