INFORMATION SIGNAL ENCODING USING A FORWARD-ADAPTIVE PREDICTION AND A BACKWARDS-ADAPTIVE QUANTIZATION
Patent №
US 9,754,601
Granted
2017-09-05
Filed 2009
Owner
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Lab
—
AI components
1
evo
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
12300602
A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
AI classification
Ownership
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
assignment · 226930142
Assignors
HIRSCHFELD, JENS, SCHULLER, GERALD, LUTZKY, MANFRED, KRAEMER, ULRICH, WABNIK, STEFAN
On an employer assignment, the assignors are typically the inventors.