A POST-COMPENSATION SCHEME FOR NONLOCAL MEANS FILTER BASED IMAGE RESTORATION

作者：Xu Hao^*; Xu Jizheng; Wu Feng

来源：15th IEEE International Conference on Image Processing (ICIP 2008), 2008-10-12 to 2008-10-15.

DOI：10.1109/ICIP.2008.4711812

• image restoration
• mean conservation
• Nonlocal Means filter

Recent Nonlocal Means filter (NLM) [1] is lack of mean conservation property, that is, image can have different mean before and after being processed. It is not suppose to happen when dealing with zero-mean noise. In this paper, a compensation procedure is proposed as post-process of NLM. The constraint of mean conservation is imposed on NLM through adding to the restored image of NLM with a compensation image. The compensation image is obtained via processing the method noise of NLM. Experiments show that the compensation procedure is able to significantly improve the performance of NLM.

• 出版日期2008
• 单位中国科学技术大学