Multimodal intrinsic speckle-tracking (mist) to extract images of rapidly-varying diffuse x-ray dark-field

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SUMMARY

    In image reconstruction, image_quality metrics can be used to determine the optimal regularisation parameter. The NIQE is a blind image_quality assessment based on an image`s measurable deviations from statistical regularities observed in natural images, namely a natural scene statistics (NSS) model. A lower NIQE reflects an image with a higher perceived image_quality. As the authors have described, the NIQE is a blind image_quality metric that measures the so-called perceived image_quality. Such features are present in the reconstructed DF signal when the cut-off parameter is too large, and hence, explains why the . . .

     

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