What are the MPEG pictures that are coded with respect to the nearest previous I- or P-picture?

Question:

What are the MPEG pictures that are coded with respect to the nearest previous I- or P-picture?

Answer:

These are called predicted pictures (P-pictures or P-frames). This technique is termed forward prediction. P-pictures provide more compression than I-pictures and serve as a reference for future P-pictures or B-pictures. P-pictures can propagate coding errors when P-pictures (or B-pictures) are predicted from prior P-pictures where the prediction is flawed.

This FAQ Applies to:

Product Series: MPEG Software, MPEG Analyzer

Applications: MPEG-2 / MPEG-4 / H.264

Product: MTS4SA, MTS400, MTS430

FAQ ID : 54551

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