International Journal of Biomedical Imaging / 2008 / Article / Fig 1

Research Article

3D Wavelet Subbands Mixing for Image Denoising

Figure 1

(a) Usual voxelwise NL-means filter: 2D illustration of the NL-means principle. The restored value of voxel (in red) is the weighted average of all intensities of voxels in the search volume , based on the similarity of their intensity neighborhoods and . In this example, we set and . (b) Blockwise NL-means filter: 2D illustration of the blockwise NL-means principle. The restored value of the block is the weighted average of all the blocks in the search volume . In this example, we set and .
590183.fig.001a
(a)
590183.fig.001b
(b)

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