Fig. 3. An SBF-SEM section of an Arabidopsis thaliana root tip and four ROIs that show the denoising performance of DenoisEM.

a The original image and four annotated ROIs and b a qualitative comparison of the original and denoised cross sections. For each ROI we show an XY and YZ section to illustrate that the image quality also improves along the Z direction, even though DenoisEM restores each XY slice independently. c For each ROI, we provide an estimation of the noise standard deviation σ_n ref. ⁵¹ in the raw and denoised patch to illustrate the image quality quantitatively. Note that the noise level decreases by almost two orders of magnitude.