发明名称 |
Decoding with embedded denoising |
摘要 |
Methods and systems for denoising embedded digital video decoding. Prediction and residue block of a current frame are obtained from motion vector. Variance of residue block is calculated using prior reference blocks, and a causal temporal linear minimum square error estimator is used to calculate a filter coefficient. The residue block is modified using the filter coefficient, and an output digital bitstream of blocks of pixels of the current frame is produced using the modified residue block and prior denoised prediction value of prior frames. |
申请公布号 |
US8831111(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US200812122163 |
申请日期 |
2008.05.16 |
申请人 |
The Hong Kong University of Science and Technology |
发明人 |
Au Oscar Chi Lim;Guo Liwei;Wong Hon Wah |
分类号 |
H04N7/12;H04N7/36;H04N7/26 |
主分类号 |
H04N7/12 |
代理机构 |
Amin, Turocy & Watson, LLP |
代理人 |
Amin, Turocy & Watson, LLP |
主权项 |
1. A method for decoding digital signals, comprising:
receiving an encoded digital signal; estimating a signal statistic of the encoded digital signal; and decoding the encoded digital signal by a decoder including a filter based at least in part on the signal statistic and a difference between a first version of a reference frame that is not denoised and a second version of the reference frame that is denoised by the filter included in the decoder. |
地址 |
Hong Kong CN |