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- W2172007114 abstract "Long has it become a hot topic that reconstructing images of better visual quality from one or a serial of degraded ones. Although there are thousands of different restoration methods, in this paper, we focus on removing the ringing artifact caused by lossy video compression. Being a sort of restoration method, we choose the max-a-posterior (MAP) method to model this optimization problem. Quantification of the ringing artifacts serves as a prior information of the images. So it is also analyzed in this paper. The MAP optimization is further solved using a gradient decent solver. Although this is a quite classical method, there are still lots of problems with it. For settling them, we transform the solver to a filter format operation named iterative optimization filter. Experiments show that, such method could give an averaging 0.3 dB gain and in special regions more than 0.7 dB gain. What is more, as analyzed in this paper, the method is very preferable in terms of hardware implementation in several aspects." @default.
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- W2172007114 date "2009-06-01" @default.
- W2172007114 modified "2023-10-14" @default.
- W2172007114 title "A novel deringing method based on MAP image restoration" @default.
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- W2172007114 doi "https://doi.org/10.1109/icme.2009.5202475" @default.
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