|
|
|
| A Novel MRF Model for Structure Preservation in SAR Image Despeckling |
| Song Heng; Wang Shi-xi; Ji Ke-feng;Yu Wen-xian |
| College of Electronic Science and Engineering, NUDT, Changsha 410073, China |
|
|
|
|
Abstract A novel MRF model called SPMRF (Structure Preserving MRF) is proposed for Bayesian despeckling of SAR images. In SPMRF every pixel within a neighborhood is associated with a weighting parameter which determines its contribution to the central pixel’s despeckling. And a temperature variable is introduced into SPMRF to control the weighting parameters’ estimating process which makes the model match with images’ local characteristics better. Experiments show as a prior model SPMRF can retain image structures efficiently with despeckling progressing.
|
|
Received: 17 October 2007
|
|
|
|
|
|
|
|
|
2009, Vol. 31 
