Method and device for compressing digital data
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United States of America Patent
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Jun 16, 1998
Grant Date -
N/A
app pub date -
Dec 30, 1996
filing date -
Dec 29, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data compression device having a decorrelation circuit (10), a circuit (12) for quantizing the decorrelated data and a control circuit (13) acting on the quantization step. The device includes is a circuit for calculating a histogram of the decorrelated data and for calculating the quantization step on the basis of this histogram (11) in order to force, in accordance with the coherence of the histogram, this quantization step. The latter is calculated on the basis of the distances between the local maximum values of the histogram.
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