DICOM Restoration Based on Wiener Filtering Tight Framelet Algorithm
In this paper, a tight wavelet frame algorithm based on Wiener filtering is proposed, which can avoid the amplification of noise during the processing. First, wavelet decomposition on the first level is done, the wavelet coefficients will be denoised by soft, thresholding to eliminate some noise and pretreated image with noise is obtained; Next, the pretreated noise image is further denoised by the frame algorithm which is inserted Wiener filter on wavelet domain; Finally, the algorithm is used to restore the degraded DICOM with noise and numerical simulation shows that our algorithm is better than soft thresholding iterative algorithm.
DICOM tight framelet Wiener filtering image restoration
Yingchun Jiang Jie Zhang
School of Mathematics and Computer Science Guilin University of Electronic Technology Guilin, 541004, P. R. China
国际会议
2010 International Conference on Signal and Information Processing(2010年IEEE信号与信息处理国际会议 ICSIP2010)
长沙
英文
483-485
2010-12-14(万方平台首次上网日期,不代表论文的发表时间)