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Question:
a Describe the following terms with reference to video editing:
1. Video frame rate 2. Pixel aspect ratio 3. Frame size 4. Temporal compression 5. Spatial compression 6. Display format 7. Fields 8. Title safe area 9. Action safe area 10. Sample rate
b What is the main difference between the MPEG and H.261 video compression algorithms?
c MPEG has a variety of different standards, i.e. MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21. Why have such standards evolved? Provide an example target application for each variant of the MPEG standard.
d Briefly explain the four basic types of data redundancy that data compression algorithms can apply to audio, image and video signals.
e What is the distinction between lossy and lossless data compression?
Given a four level hierarchical storage system consisting of: cache, primary storage, secondary storage, and tertiary storage. Suppose the following: programs may be executed on
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Explain the technique used in the asymmetric Key Cryptography. Asymmetric or public-key cryptography be different from conventional cryptography in which key material is bound
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advantages of lfu
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