5. Performance
The efficiency of a compression format depends on intrinsic and extrinsic factors.
5.1 Intrinsic factors
Intrinsic performance factors, i.e. those directly linked to codec specifications, depend on :
1) the type of algorithm used, for example in image compression: DCT (with JPEG, MPEG... formats) or DWT (with JPEG 2000 format) for still or moving images (figure 13 );
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2) the compression format itself, for example :
MPEG Audio compared to G.722/G.723...
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Performance
Conclusion
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Bibliography
Principles
- (1) - GOUYET (J.-N.) - Systèmes audio et vidéo numériques. - Codage de source – Réduction de débit, Chap. 10, Institut national de l'audiovisuel, Techniques et production audiovisuelles, Paris, ISBN 2-86938-030-5 (1993).
Audio
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