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:
Applications: MPEG-2 / MPEG-4 / H.264
Product: MTS4SA, MTS400, MTS430
FAQ ID : 54551View all FAQs »