JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV MULTIMEDIA AND SIGNAL CODING Previous Question Paper (May/June - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
Part A
What are the different components of Multimedia?
Answer
The five fundamental components of multimedia are text, audio, images, video, and animation.
Name software tools available for carrying out tasks in multimedia.
Answer
Common software tools include Adobe Creative Cloud (Photoshop for images, Premiere Pro for video, Audition for audio), Audacity for audio editing, Blender for 3D animation, and GIMP for image manipulation.
What is interlaced raster scanning?
Answer
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What is the sampling rate of audio signal? Which range of frequencies can be hear by human ear?
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What are the advantages and disadvantages of Arithmetic coding as compared to Huffman coding?
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What is mean by distortion measures?
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What are three basic steps in Motion compensation algorithms?
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Define the terms motion vector and prediction error?
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What is the principle of Jayantquantizer of G.726 standard?
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What is Vocoder?
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Part B
Explain how authoring programs provide the capability for a complete multimedia presentation?
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What are the different Graphics/Data types? Explain them.
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Draw the CIE Chromaticity diagram and explain how chromaticities are formed?
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Derive the required equations for YIQ color model and compare it with other color models.
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Explain three different ways of organizing video signals with examples.
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How I and Q signals are extracted from C signal?
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Compare the linear and non-linear quantization of audio signals.
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Explain how digital audio is transmitted? Explain any one method with neat block diagram and equations.
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Write the Huffman code algorithm and explain how it is used for compression and also write its important properties.
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What are the two steps involved in Lossless JPEG image compression? Explain them.
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Define KL Transform and explain how it is used for image compression?
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How decomposition of wavelet transforms can help to compress the image?
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Explain how sequential search is used to find motion vectors?
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Write video formats that support by H.261.
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Explain I-frame coding and compare it with p-frame coding.
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Draw the block diagram of H.261 decoder and explain its working.
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How channel vocoder is used to determine the general pitch of speech?
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Draw and explain the CELP analysis model with adaptive and stochastic code books.
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Explain how MPEG standard delineats three different aspects of multimedia?
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Compare the MPEG-1, MPEG-2 MPEG-3 and MPEG-4 standards in all aspects.
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