09 September 2016 1 235 Report

Why 3D DCT and 1D Haar wavelet is used? Why not other transform is used in denoising MRI images?

More Laraib Kanwal's questions See All
In most of the MRI denoising algorithms, grouping of similar cubes is done. What's the advantage of groupig instead of taking in whole MRI image?

Grouping of similar cubes benefit?

08 September 2016 1,200 1 View

Why median of eigenvalues (PCA) is used in noise estimation of MRI images?

Median of eigenvalues is close to noise variance. Why is it so. Median of eigenvalues is used in noise estimation. Why not mean.

08 September 2016 9,780 3 View

How coefficient shrinkage is implemented by multiplication of Wiener filtered co-efficients and spectrum of noisy image?

coefficient shrinkage is implemented element by element multiplication of Wiener filtered coefficients and spectrum of noisy image. How?

08 September 2016 7,268 0 View

What is technical difference between spatial and temporal filter?

image processing

31 December 2015 6,563 2 View

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