METHOD AND DEVICE FOR DIGITAL DATA COMPRESSION

The invention relates to a method for compressing an input data set, wherein the coefficients in the input data set are grouped in groups of coefficients, a number of bit planes,GCLI, needed for representing each group is determined, a quantization is applied,keeping a limited number of bit planes,a...

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Bibliographische Detailangaben
Hauptverfasser:	BUYSSCHAERT, Charles Daniel, PELLEGRIN, Pascal Hubert, ROUVROY, Gaël
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	The invention relates to a method for compressing an input data set, wherein the coefficients in the input data set are grouped in groups of coefficients, a number of bit planes,GCLI, needed for representing each group is determined, a quantization is applied,keeping a limited number of bit planes,a prediction mechanism is applied to the GCLIs for obtaining residues, and an entropy encoding of the residues is performed. The entropy-encoded residues, and the bit planes kept allow the decoder to reconstruct the quantized data, at a minimal cost in meta-data.