The MPEG-1 Codec - A Practical Guide to Video and Audio Compression - page 213

I-frame B-frame

1 5

B-frame B-frame

2 6

B-frame P-frame

3 7

B-frame

4

Figure 10-21 Moving components within an image.

quality. Leaving them unprocessed makes for a lossy coding output. This is where the com-
plexity of video compression begins to bite. You probably don't need an analyzer unless
you are building codecs but if you do, then one of the Tektronix models will do very well.
A recent model is the MTM 400. You can also use the ADM953A or run the MTS4EA

Figure 10-22 B-frame composition.