Validation of modulation transfer functions and noise power spectra from natural scenes
The Modulation Transfer Function (MTF) and the Noise Power Spectrum (NPS) characterize
imaging system sharpness/resolution and noise, respectively. Both measures are based on …
imaging system sharpness/resolution and noise, respectively. Both measures are based on …
Contrast discrimination in images of natural scenes
J Jarvis, S Triantaphillidou, G Gupta - JOSA A, 2022 - opg.optica.org
Contrast discrimination determines the threshold contrast required to distinguish between
two suprathreshold visual stimuli. It is typically measured using sine-wave gratings. We first …
two suprathreshold visual stimuli. It is typically measured using sine-wave gratings. We first …
[HTML][HTML] Estimation of ISO12233 edge spatial frequency response from natural scene derived step-edge data
O van Zwanenberg… - Journal of …, 2018 - westminsterresearch.westminster.ac …
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 …
system performance measure that derives SFRs directly from images of natural scenes and …
Scene-dependent image quality and visual assessment
J Jarvis, S Triantaphillidou, M Farias… - Frontiers in …, 2023 - frontiersin.org
There are many unresolved challenges when it comes to the assessment of image and
video quality. To begin with, engineering-type quality models that account for imaging …
video quality. To begin with, engineering-type quality models that account for imaging …
Noise Power Spectrum Scene-Dependency in Simulated Image Capture Systems
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 …
is derived traditionally from captured uniform luminance patches that are unrepresentative of …
[PDF][PDF] Camera system performance derived from natural scenes
O van Zwanenberg, S Triantaphillidou… - Electronic …, 2020 - library.imaging.org
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 …
performance, commonly employed to characterize optical and image capture systems. It is a …
[PDF][PDF] Estimation of ISO12233 edge spatial frequency response from natural scene derived step-edge data (JIST-first)
O van Zwanenberg, S Triantaphillidou… - Electronic …, 2021 - library.imaging.org
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 …
camera system performance measure that derives SFRs directly from images of natural …