Where do compression artifacts come from?

Question:

Where do compression artifacts come from?

Answer:

Compression artifacts are small errors that result in the decom­pressed signal when a digital signal is compressed with a high compression ratio. These errors are known as "artifacts," or unwanted defects. The artifacts may resemble noise (or edge "busyness") or may cause parts of the picture, particularly fast moving por­tions, to be displayed with the movement distorted or missing.

This FAQ Applies to:

Product Series: MPEG Software, MPEG Analyzer

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

Product: MTS4SA, MTS400, MTS430

FAQ ID : 55121

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