发明名称 |
Lossless encoding and decoding of digital data |
摘要 |
The disclosure relates to encoding and decoding of digital data, and in particular to lossless arithmetic encoding and decoding of digital data representing audio, image or video data. A probability density function used for lossless arithmetic encoding of digital data is controlled by employing one or more parameters that changes over the set of data to be encoded. A parametric model in the form of an envelope function describes the spread of quantization indices derived from the data in a transform domain. By transmitting the one or more parameters together with the arithmetically encoded data, a receiving decoder may decode the data by exploiting the same parametric model as used by the encoder.
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申请公布号 |
US7756350(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20060595995 |
申请日期 |
2006.11.13 |
申请人 |
GLOBAL IP SOLUTIONS, INC.;GLOBAL IP SOLUTIONS (GIPS) AB |
发明人 |
VOS KOEN;SKOGLUND JAN |
分类号 |
G06K9/36;G06K9/46;H04N7/12 |
主分类号 |
G06K9/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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