Results 231 to 240 of about 65,529 (267)
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2014
Objective methods and metrics for assessing image quality are more convenient, less expensive and time-consuming than subjective methods. There are a number of reference objective metrics that provide a good correlation with perceived image quality, such as SSIM, MS-SSIM, CW-SSIM, IW-SSIM, but they are slow and have sufficient computational complexity.
Alexander Osokin, Dmitry Sidorov
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Objective methods and metrics for assessing image quality are more convenient, less expensive and time-consuming than subjective methods. There are a number of reference objective metrics that provide a good correlation with perceived image quality, such as SSIM, MS-SSIM, CW-SSIM, IW-SSIM, but they are slow and have sufficient computational complexity.
Alexander Osokin, Dmitry Sidorov
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SSIM-Based Global Optimization for CTU-Level Rate Control in HEVC
IEEE transactions on multimedia, 2019In this paper, we propose a coding tree unit (CTU)-level rate control scheme from the perspective of SSIM-based rate-distortion optimization to improve the coding efficiency.
Mingliang Zhou +7 more
semanticscholar +1 more source
Medical Imaging, 2020
The purpose of this study is to assess feasibility of developing a new case-based computer-aided diagnosis (CAD) scheme of mammograms based on a tree-based analysis of SSIM characteristics of the matched bilateral local areas of left and right breasts to
Morteza Heidari +4 more
semanticscholar +1 more source
The purpose of this study is to assess feasibility of developing a new case-based computer-aided diagnosis (CAD) scheme of mammograms based on a tree-based analysis of SSIM characteristics of the matched bilateral local areas of left and right breasts to
Morteza Heidari +4 more
semanticscholar +1 more source
SSIM-based adaptive quantization in HEVC
2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013HEVC is an emerging video coding standard that can achieve significant compression gains compared to H.264/AVC due to the inclusion of numerous new coding tools. In particular, it allows for a flexible quadtree based block partitioning of each coding tree unit (CTU) and an ability to switch quantization parameters (QP) on a sub-CTU level. In this paper,
Chuohao Yeo, Hui Li Tan, Yih Han Tan
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SSIM performance limitation of linear equalizers
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014ABSTRACT The performancelimitation of linear equalizers is studied forthe structural similarity (SSIM) criteria. Given a blurring fil-ter and an image with zero mean, the closed form formula isobtained to compute the maximal SSIM index and the corre-spondingoptimallinearequalizer.
Li Chai, Yuxia Sheng, Jingxin Zhang
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Multiscale WS-SSIM for panoramic video quality assessment
SPIE/COS Photonics Asia, 2020Objective quality assessment plays a vital role in the evaluation and optimization of panoramic video. However, most of the current methods only consider the structural distortion caused by the projection format, and do not consider the effect of clarity
Xin Liu +4 more
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Window size influence on SSIM fidelity
7'th International Symposium on Telecommunications (IST'2014), 2014It has been claimed that to calculate local Structural Similarity (SSIM) index, it is better to employ an 11×11 Gaussian window (called standard SSIM index). In this paper, this claim will be evaluated and shown that contrary to popular belief, not only the standard SSIM index is not always well correlated to the MOS scores but also in some distortion ...
Hossein Bakhshi Golestani +1 more
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Weighted-to-Spherically-Uniform SSIM Objective Quality Evaluation for Panoramic Video
International Conference on the Software Process, 2018As an important part of immersive media, panoramic video has entered the stage of commercialization in recent years. The panoramic video offers users an immersive viewing experience with its 360°horizontal and 180°vertical viewing angles.
Yufeng Zhou +4 more
semanticscholar +1 more source
2022 2nd International Conference on Social Sciences and Intelligence Management (SSIM), 2022
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SSIM Preservation-Based Backlight Dimming
Journal of Display Technology, 2014In this letter, a new backlight dimming technique that considers perceptual image quality based on a structural similarity (SSIM) metric is proposed. Conventional algorithms cannot accurately control the optimal trade-off between image quality and power consumption; image quality is therefore degraded in some images. In contrast, the proposed algorithm
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