METHOD FOR ENCODING/DECODING A QUANTIZATION COEFFICIENT, AND APPARATUS USING SAME
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United States of America Patent
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Nov 27, 2014
app pub date -
Oct 30, 2012
filing date -
Nov 4, 2011
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Abstract
The present invention relates to a method for encoding/decoding a quantization coefficient, and to an apparatus using same. The decoding method can include the steps of: decoding initial quantization parameter information and quantization parameter range information of a slice; and obtaining a quantization parameter limitation range applied to an encoding unit included in the slice using the initial quantization parameter information and the quantization parameter range information. Accordingly, the efficiency of encoding and decoding an image can be improved during encoding/decoding.
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