کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
393998 | 665714 | 2010 | 17 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Switching-based filter based on Dempster’s combination rule for image processing Switching-based filter based on Dempster’s combination rule for image processing](/preview/png/393998.png)
In this work, a two-pass switching rank-ordered arithmetic mean (TSRAM) filter that preserves image details while effectively suppressing impulse noise is proposed to improve the performance of switching-based median filters. The proposed filter mechanism includes an efficient impulse detector based on the Dempster–Shafer (D–S) evidence theory and a rank-ordered arithmetic mean filter that works by estimating the noise-free ordered mean values excluding the current pixel. A modified Dempster’s combination rule is applied to the impulse detector. To improve filtering performance, a simple switching median filter is included to perform second-pass filtering. Experimental results show that the proposed filter outperforms many well-accepted switching-based median filters in terms of both noise suppression and detail preservation, providing excellent robustness at various percentages of impulse noise.
Journal: Information Sciences - Volume 180, Issue 24, 15 December 2010, Pages 4892–4908