Noise Removed Algorithm for Video Sequences Based on Switching 3-D Median Filter
Lin Ni · Jisuanji gongcheng · 2008
To improve the quality and effect of video sequences with noise,this paper proposes a switching 3-D median filter algorithm combining noise detection and 3-D median filter.3-D median filter is applied to noise points by judging each pixel in noisy video sequences.The noise points are judged for the second time applying distorted 3-D median filter until all the noise points are eliminated.The experimental results prove that the algorithm can achieve good filter effect on snow flower noise.When 25 percent snow flower noise is added,switching 3-D median filter algorithm performs 10 dB better than 3-D median filter on average.