Measuring camera system performance and associating it directly to image quality is very
relevant, whether images are aimed for viewing, or as input to machine learning and …

The contrast sensitivity function (CSF) characterizes spatial detection in the human visual
system and is typically measured from simple, synthetic stimuli. We used spatial frequency …

Endoscopes are crucial for assisting in surgery and disease diagnosis, including the early
detection of cancer. The effective use of endoscopes relies on their optical performance …

The Modulation Transfer Function (MTF) and the Noise Power Spectrum (NPS) characterize
imaging system sharpness/resolution and noise, respectively. Both measures are based on …

Spatial image quality metrics designed for camera systems generally employ the Modulation
Transfer Function (MTF), the Noise Power Spectrum (NPS), and a visual contrast detection …

The Natural Scene derived Spatial Frequency Response (NS-SFR) is a novel camera
system performance measure that derives SFRs directly from images of natural scenes and …

The subject matter of the article is image sharpness evaluation in photos of people. The goal
of the work is to analyse the existing methods of image sharpness evaluation, compare their …

The Noise Power Spectrum (NPS) is a standard measure for image capture system noise. It
is derived traditionally from captured uniform luminance patches that are unrepresentative of …

The Modulation Transfer Function (MTF) is a wellestablished measure of camera system
performance, commonly employed to characterize optical and image capture systems. It is a …

Abstract The Natural Scene derived Spatial Frequency Response (NS-SFR) is a novel
camera system performance measure that derives SFRs directly from images of natural …