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    Data compression algorithm

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    Explain how the data compression algorithm is used by MPEG-2.

    © BrainMass Inc. brainmass.com May 20, 2020, 8:37 pm ad1c9bdddf
    https://brainmass.com/computer-science/data/data-compression-algorithm-409460

    Solution Preview

    Please find attached helping material on the topic, using which you should be able to easily explain how the compression algorithm is used by MPEG-2. The block-diagram in the document illustrates it.

    Mpeg 2 is designed for higher quality video at a bit-rate greater than 4Mbps. It basically defines sever profiles which are aimed at different applications such as:

    1. Simple
    2. Main
    3. SNR scalable
    4. Spatially scalable
    5. High
    6. 4:2:2
    7. And multi-view

    And within each of these profiles there are 4 different levels. The levels are shown in the table below (see attachment)

    The main profile of MPEG - 2 is designed for DVD video; the specification of it allows only four display resolutions:

    a. 720 x 480
    b. 704 x 480
    c. 352 x 480
    d. 352 x 240

    The last ones are a restricted form of the MPEG-2 Main Profile, at the main and low levels.

    However to understand the working of MPEG-2, we need to understand few concepts as explained below.

    Interlaced Video

    It is a technique of improving the picture quality of a video transmission without consuming extra bandwidth. So in interlace vide each frame ...

    Solution Summary

    This solution discusses the data compression algorithm used by MPEG-2, using figures and images to illustrate the concepts.

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