Estimating the resolution of real images
This addresses the need for a universal resolution estimation technique in imaging, though it appears incremental as it builds on existing Fourier analysis without introducing a new paradigm.
The paper tackles the problem of estimating image resolution without test objects or threshold criteria by deriving the point spread function's full width at half maximum from Fourier domain plots of real images, and suggests the method is applicable across all imaging modalities.
Image resolvability is the primary concern in imaging. This paper reports an estimation of the full width at half maximum of the point spread function from a Fourier domain plot of real sample images by neither using test objects, nor defining a threshold criterion. We suggest that this method can be applied to any type of image, independently of the imaging modality.