Journal ArticleDOI
Preference of Experience in Image Tone-Mapping: Dataset and Framework for Objective Measures Comparison
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TLDR
A subjective experiment attempting to determine users’ preference with respect to these two types of content in two different viewing scenarios—with and without the HDR reference shows that the absence of the reference can significantly influence the subjects' preferences for the natural images, while no significant impact has been found in the case of the synthetic images.Abstract:
The popularity of high dynamic range (HDR) imaging has grown in both academic and private research sectors. Since the native visualization of HDR content still has its limitations, the importance of dynamic range compression (i.e., tone-mapping) is very high. This paper evaluates observers’ preference of experience in context of image tone-mapping. Given the different nature of natural and computer-generated content, the way observers perceive the quality of tone-mapped images can be fundamentally different. In this paper, we describe a subjective experiment attempting to determine users’ preference with respect to these two types of content in two different viewing scenarios—with and without the HDR reference. The results show that the absence of the reference can significantly influence the subjects’ preferences for the natural images, while no significant impact has been found in the case of the synthetic images. Moreover, we introduce a benchmarking framework and compare the performance of selected objective metrics. The resulting dataset and framework are made publicly available to provide a common test bed and methodology for evaluating metrics in the considered scenario.read more
Citations
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Journal ArticleDOI
A Gabor Feature-Based Quality Assessment Model for the Screen Content Images
TL;DR: Experimental simulation results obtained from two large SCI databases have shown that the proposed GFM model yields a higher consistency with the human perception on the assessment of SCIs but also requires a lower computational complexity, compared with that of classical and state-of-the-art IQA models.
Journal ArticleDOI
MC360IQA: A Multi-channel CNN for Blind 360-Degree Image Quality Assessment
TL;DR: This paper builds a compressed VR image quality (CVIQ) database, and proposes a multi-channel convolution neural network (CNN) for blind 360-degree image quality assessment (MC360IQA), which achieves the best performance among the state-of-art full-reference and no-reference image quality Assessment (IQA) models on the CVIQ database and other available360-degree IQA database.
Journal ArticleDOI
Screen Content Quality Assessment: Overview, Benchmark, and Beyond
TL;DR: In this article, screen content, which is often computer-generated, has many characteristics distinctly different from conventional camera-captured natural scene content, and such characteristic differences impose majo...
Journal ArticleDOI
Robust high dynamic range color image watermarking method based on feature map extraction
TL;DR: The experimental results show that the proposed method can efficiently resist different TMOs and common image attacks, outperforming other existing HDR image watermarking methods.
Journal ArticleDOI
Toward the Assessment of Quality of Experience for Asymmetric Encoding in Immersive Media
TL;DR: The focus of this contribution is the development of a QoE assessment framework, in line with the latest standardization progress in the field of QOE assessment, for understanding the visual effect of asymmetric and symmetric encoding for immersive media.
References
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Comparative Analysis of Bradley-Terry and Thurstone-Mosteller Paired Comparison Models for Image Quality Assessment.
TL;DR: It is argued here that BT model should be used in place of TM because presently the former is more developed mathematically than the latter and offers numerically easier statistical procedures.
Journal ArticleDOI
A reality check for tone-mapping operators
Michael Ashikhmin,Jay Goyal +1 more
TL;DR: It is shown that it becomes very difficult to meaningfully judge relative performance of modern tone-mapping techniques with existing comparison methods and it is demonstrated that using real environments is crucial in such experiments.
Journal ArticleDOI
Ultrawide-view liquid crystal displays
TL;DR: In this paper, the most promising liquid crystal modes for wide view technologies, such as in-plane switching, multidomain vertical alignment, patterned vertical alignment and advanced-super-view are compared.
Journal ArticleDOI
Tone mapping based HDR compression: Does it affect visual experience?
TL;DR: It is believed that VA needs consideration for evaluating the overall perceptual impact of TMOs on HDR content, since the existing studies so far have only considered the quality or esthetic appeal angle.
Proceedings ArticleDOI
An investigation of perceived sharpness and sharpness metrics
TL;DR: It is found that the sharpness metric Digital Sharpness Scale and Average Edge Transition Slope are highly correlated to the perceived sharpness, and the preferred level of sharpness has a strong dependency on image content.