Encoding method, decoding method, encoding device, decoding device, and recording medium for a plurality of samples
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United States of America Patent
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Apr 19, 2016
Grant Date -
Apr 25, 2013
app pub date -
Jul 4, 2011
filing date -
Jul 5, 2010
priority date (Note) -
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Abstract
In encoding, index information indicating a group of coefficients that minimizes the sum of the error between the value of each sample and the value is obtained by multiplying the quantized value of each of a plurality of samples by a coefficient corresponding to the position of the sample. The coefficient is selected from a plurality of groups of predetermined coefficients corresponding to the positions of the samples. In decoding, a plurality of values corresponding to an input vector quantization index are obtained as decoded values corresponding to a plurality of sample positions. With the use of a group of predetermined coefficients corresponding to the plurality of sample positions and indicated by input index information, the values obtained by multiplying the decoded values and the coefficients, corresponding to the sample positions are output.
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