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ISO/IEC 23002-2:2008Published

Information technology — MPEG video technologies — Part 2: Fixed-point 8x8 inverse discrete cosine transform and discrete cosine transform

Technologies de l'information — Technologies vidéo MPEG — Partie 2: Transformation de cosinus discret inverse 8x8 point fixe et transformation de cosinus discret

Abstract / scope

ISO/IEC 23002-2:2008 specifies a particular implementation of an integer-output 8x8 inverse discrete cosine transform (IDCT) that fully conforms to the accuracy requirements specified in ISO/IEC 23002-1 and additionally meets or exceeds all accuracy requirements specified for IDCT precision in a number of international video coding standards. It additionally provides a (non-normative) specification of an integer-output 8x8 forward DCT based on the same factorization structure.