Denoising 3D ultrasound
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What is the most effective filter to denoise a 3D ultrasound image (3 dimensional matrix of a grayscale image)?
I tried:
- imgaussfilt3
- ROF filtering
- fourier ideal filter
- edge sharpening
- Wiener filtering
But this doesn't help much.
Does anyone has a suggestion?
Thanks in advance
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KALYAN ACHARJYA
il 17 Gen 2020
Modificato: KALYAN ACHARJYA
il 17 Gen 2020
It's purely depends on, what types of noise presence in the images. Though I can't commnet with surety, those filters may work perfectly without observing the noisy image. It would be better, if you can attach a sample data.
Other way, you may try with some other basics image pre-processisng steps (histeq or adaptivehistEq), then apply those filter (single or successively). I suggest to check the following paper (Index: pubMed) using sparse representation. If the case of speckle noises, look here for review of literature.
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