Results 41 to 50 of about 473,139 (306)

Quality Assessment of SAR-to-Optical Image Translation

open access: yesRemote Sensing, 2020
Synthetic aperture radar (SAR) images contain severe speckle noise and weak texture, which are unsuitable for visual interpretation. Many studies have been undertaken so far toward exploring the use of SAR-to-optical image translation to obtain near ...
Jiexin Zhang   +4 more
doaj   +1 more source

The Effect of Radiation Dose and Tube Potential on Image Quality of CT: A Task-based Image Quality Assessment

open access: yesCT Lilun yu yingyong yanjiu, 2022
Purpose: To compare the effect of radiation dose and tube potential on image quality of CT through the task-based image quality assessment parameters. Methods: We scanned Gammex 464 (the ACR quality assurance phantom) with GE Revolution Apex CT.
Zhengjun YANG   +7 more
doaj   +1 more source

Topological Image Texture Analysis for Quality Assessment [PDF]

open access: yes, 2017
Image quality is a major factor influencing pattern recognition accuracy and help detect image tampering for forensics. We are concerned with investigating topological image texture analysis techniques to assess different type of degradation.
Aras T. Asaad   +5 more
core   +1 more source

Image Restoration Quality Assessment Based on Regional Differential Information Entropy

open access: yesEntropy, 2023
With the development of image recovery models, especially those based on adversarial and perceptual losses, the detailed texture portions of images are being recovered more naturally. However, these restored images are similar but not identical in detail
Zhiyu Wang   +5 more
doaj   +1 more source

An algorithm for image quality assessment

open access: yes2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004
The paper presents a novel algorithm for image quality assessment. First, a simple model of the human visual system, consisting of a nonlinear function and a 2D filter, processes the input images. This filter has one user-defined parameter, whose value depends on the reference image.
Goran Ivkovic, Ravi Sankar
openaire   +2 more sources

Perceptual image attribute scales derived from overall image quality assessments [PDF]

open access: yes, 2009
Psychophysical scaling is commonly based on the assumption that the overall quality of images is based on the assessment of individual attributes which the observer is able to recognise and separate, i.e. sharpness, contrast, etc. However, the assessment
Triantaphillidou, S.   +2 more
core   +1 more source

No-Reference Image Quality Assessment with Global Statistical Features

open access: yes, 2021
The perceptual quality of digital images is often deteriorated during storage, compression, and transmission. The most reliable way of assessing image quality is to ask people to provide their opinions on a number of test images.
Domonkos Varga
core   +1 more source

Image Quality Assessment Using Image Description in Information Theory

open access: yesIEEE Access, 2018
In this paper, a novel image quality assessment (IQA) model using statistic features based on image information theory is proposed. Firstly, the image is decomposed into non-overlapped patches and transformed into the saliency information, specific ...
Huan Gao   +3 more
doaj   +1 more source

Image quality assessment based on edge preservation

open access: yes, 2012
Objective image/video quality metrics which accurately represent the subjective quality of processed images are of paramount importance for the design and assessment of an image compression and transmission system. In some scenarios, it is also important
Martini, Maria G.   +5 more
core   +1 more source

IV-PSNR: Software for immersive video objective quality evaluation

open access: yesSoftwareX, 2023
In this article, we present the IV-PSNR software, which allows for objective quality assessment of immersive video. The software outputs the IV-PSNR metric calculated for a pair of raw video files.
Jakub Stankowski, Adrian Dziembowski
doaj   +1 more source

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