نتایج جستجو برای: reduced reference image quality assessment

تعداد نتایج: 2296636  

Journal: :International Journal of Computer Applications 2012

Journal: :International Journal of Modern Education and Computer Science 2011

Journal: :Journal of Imaging Science and Technology 2010

Journal: :Journal of Visual Communication and Image Representation 2022

Quality assessment of natural images is influenced by perceptual mechanisms, e.g., attention and contrast sensitivity, quality perception can be generated in a hierarchical process. This paper proposes an architecture Attention Integrated Hierarchical Image networks (AIHIQnet) for no-reference assessment. AIHIQnet consists three components: general backbone network, perceptually guided neck hea...

2011
Geert Braeckman Adriaan Barri Gabor Fodor Ann Dooms Joeri Barbarien Peter Schelkens András Bohó Li Weng

Geert Braeckman, Adriaan Barri, Gabor Fodor, Ann Dooms, Joeri Barbarien, Peter Schelkens , András Bohó, Li Weng #2,3 #1 Vrije Universiteit Brussel (VUB), Dept. of Electronics and Informatics (ETRO), Pleinlaan 2, B-1050 Brussels, Belgium. #2 Interdisciplinary Institute for Broadband Technology (IBBT), Dept. of Future Media and Imaging (FMI), Gaston Crommenlaan 8 (box 102), B-9050 Ghent, Belgium....

2009
David M. Rouse Romuald Pépion Sheila S. Hemami Patrick Le Callet

Present quality assessment (QA) algorithms aim to generate scores for natural images consistent with subjective scores for the quality assessment task. For the quality assessment task, human observers evaluate a natural image based on its perceptual resemblance to a reference. Natural images communicate useful information to humans, and this paper investigates the utility assessment task, where...

2008
M. Tagliasacchi G. Valenzise M. Naccari S. Tubaro

In this paper we propose a reduced-reference quality assessment algorithm which computes an approximation of the structural similarity (SSIM) metric exploiting coding tools provided by the distributed source coding theory. The algorithm has been tested to evaluate the quality of decoded video bitstreams after transmission over error-prone networks. We evaluate the accuracy of the proposed quali...

2005
Hamid R. Sheikh Alan C. Bovik

Measurement of visual quality is crucial for many image and video processing applications. Traditionally, quality assessment (QA) algorithms predict visual quality by comparing a distorted signal against a reference, typically by modeling the Human Visual System (HVS). In this paper, we adopt a new paradigm for video quality assessment that is an extension of our previous work on still image QA...

Background Increasing the x-ray film to focus distance (FFD), has been recommended as a practical dose optimization tool for patients undergoing conventional radiological procedures. In the previous study, we demonstrated a 32% reduction in absorbed dose is achievable due to increasing the FFD from 100 to 130 cm during pediatric chest radiography. The aim of this study was to examine whether in...

2016
Qun Zhou Xiongwei Liu

The assessment of image compression result can not only evaluate the quality of image compression results and to a certain extent, can also find the advantages and drawbacks of various compression methods. At the same time, it can provide a reference for the compressed image restoration. Firstly, the classification and shortages of image quality assessment methods are presented. Then, several o...

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