Results 11 to 20 of about 241,735 (174)

Impact of H.264/AVC and H.265/HEVC Compression Standards on the Video Quality for 4K Resolution [PDF]

open access: yesAdvances in Electrical and Electronic Engineering, 2014
This article deals with the impact of H.264/AVC and H.265/HEVC compression standards on the video quality for 4K resolution. In the first part a short characteristic of both compression standards is written.
Miroslav Uhrina   +3 more
doaj   +4 more sources

Perceived Quality of Full HD Video - Subjective Quality Assessment [PDF]

open access: yesAdvances in Electrical and Electronic Engineering, 2016
In recent years, an interest in multimedia services has become a global trend and this trend is still rising. The video quality is a very significant part from the bundle of multimedia services, which leads to a requirement for quality assessment in the ...
Juraj Bienik   +3 more
doaj   +7 more sources

Performance Analysis of a Polling Model With BMAP and Across-Queue State-Dependent Service Discipline [PDF]

open access: yesIEEE Access, 2019
As various video services become popular, video streaming will dominate the mobile data traffic. The H.264 standard has been widely used for video compression.
Jianyu Cao   +4 more
doaj   +3 more sources

Subjective Video Quality Assessment of H.265 Compression Standard for Full HD Resolution [PDF]

open access: yesAdvances in Electrical and Electronic Engineering, 2015
Recently increasing interest in multimedia services leads to requirements for quality assessment, especially in the video domain. There are many factors that influence the video quality.
Miroslav Uhrina   +2 more
doaj   +3 more sources

Model-independent rate control for intra-coding based on piecewise linear approximations [PDF]

open access: yes, 2020
This paper proposes a rate control (RC) algorithm for intra-coded sequences (I-frames) within the context of block-based predictive transform coding that departs from using trained models to approximate the rate-distortion (R-D) characteristics of the ...
Sanchez Silva, Victor
core   +1 more source

c-function and central charge of the sine-Gordon model from the non-perturbative renormalization group flow

open access: yesNuclear Physics B, 2015
In this paper we study the c-function of the sine-Gordon model taking explicitly into account the periodicity of the interaction potential. The integration of the c-function along trajectories of the non-perturbative renormalization group flow gives ...
V. Bacsó   +3 more
doaj   +1 more source

Impact of Constant Rate Factor on Objective Video Quality Assessment

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This paper deals with the impact of constant rate factor value on the objective video quality assessment using PSNR and SSIM metrics. Compression efficiency of H.264 and H.265 codecs defined by different Constant rate factor (CRF) values was tested.
Juraj Bienik   +2 more
doaj   +1 more source

HEVC Watermarking Techniques for Authentication and Copyright Applications: Challenges and Opportunities

open access: yesIEEE Access, 2020
Recently, High-Efficiency Video Coding (HEVC/H.265) has been chosen to replace previous video coding standards, such as H.263 and H.264. Despite the efficiency of HEVC, it still lacks reliable and practical functionalities to support authentication and ...
Ali A. Elrowayati   +3 more
doaj   +1 more source

Influence of Bit Depth on Subjective Video Quality Assessment for High Resolutions

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This paper deals with the influence of bit depth on the subjective video quality assessment. To achieve this goal, eight video sequences, each representing a different content prototype, were analysed.
Juraj Bienik   +2 more
doaj   +1 more source

Survey of Error Concealment techniques: Research directions and open issues [PDF]

open access: yes, 2015
© 2015 IEEE. Error Concealment (EC) techniques use either spatial, temporal or a combination of both types of information to recover the data lost in transmitted video.
He, X, Lam, KM, Usman, M, Xu, M
core   +1 more source

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