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Introduction to MPEG

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   MPEG Motion Estimation

Motion estimation is the process of searching a fixed region of a previous frame of video to find a matching block of pixels of the same size under consideration in the current frame. The process involves an exhaustive search for many blocks surrounding the current block from the previous frame. Motion estimation is a computer-intensive process that is used to achieve high compression ratios.

Figure 1.12 shows how a digital video system can use motion estimation to identify objects and how their positions change in a series of pictures. This diagram shows that a bird in a picture is flying across the picture. In each picture frame, the motion estimation system looks for blocks that approximate other blocks in previous pictures. Over time, the digital video motion estimation system finds matches and determines the paths (motion vectors) that these objects take.

 

MPEG Motion Estimation Diagram

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   MPEG Books

Introduction to MPEG Book

 

 

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Introduction to MPEG

This book explains the basics of audio and video digitization and compression and the standard formats that are used be MPEG. You will learn about the different MPEG audio coders and video coder options.

$19.99 Printed, $16.99 eBook

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