Results 1 to 10 of about 265,195 (378)

Statistical multiplexing of H.264 programs

open access: yes2007 International Conference on Intelligent and Advanced Systems, 2007
The advent of H.264/AVC is going to change the way Digital Television programs are broadcast. Each program can be independently encoded or jointly encoded resulting thus in a more efficient way to distribute the available channel bandwidth. This paper presents a combined coding scheme for multi-program video transmission in which the channel capacity ...
Teixeira, Luis Miguel Lopes   +1 more
openaire   +2 more sources

Video Abstraction in H.264/AVC Compressed Domain [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2019
Video abstraction allows searching, browsing and evaluating videos only by accessing the useful contents. Most of the studies are using pixel domain, which requires the decoding process and needs more time and process consuming than compressed domain ...
A. R. Yamghani, F. Zargari
doaj   +1 more source

Large-Scale Research On Quality Of Experience (Qoe) Algorithms

open access: yesComputer Science, 2013
The large variety of video data sources means variability not only in terms ofincluded content, but also in terms of quality. Therefore, quality assessment pro-vides an additional dimension.
Mikolaj Leszczuk   +5 more
doaj   +1 more source

Impact of Scene Content on High Resolution Video Quality

open access: yesSensors, 2021
This paper deals with the impact of content on the perceived video quality evaluated using the subjective Absolute Category Rating (ACR) method. The assessment was conducted on eight types of video sequences with diverse content obtained from the SJTU ...
Miroslav Uhrina   +3 more
doaj   +1 more source

ADAPTIVE GOP STRUCTURE TO H.264/AVC BASED ON SCENE CHANGE [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2014
This paper proposes an adaptive GOP structure with the new logic of frame comparison in H.264/AVC to achieve better quality and reduce bit rate. Initially Group of Pictures (GOP) is set to a fixed size.
S. Sowmyayani, P. Arockia Jansi Rani
doaj  

Adapting the H.264 Standard to the Internet of Vehicles

open access: yesTechnologies, 2023
We suggest two steps of reducing the amount of data transmitted on Internet of Vehicle networks. The first step shifts the image from a full-color resolution to only an 8-color resolution.
Yair Wiseman
doaj   +1 more source

Prioritized packet fragmentation for H.264 video [PDF]

open access: yes2011 18th IEEE International Conference on Image Processing, 2011
We introduce a cross-layer priority-aware packet fragmentation scheme to enhance the quality of H.264 compressed bitstreams over bit-rate limited error-prone links in packet networks. The H.264 slices are prioritized in the encoder based on their cumulative mean square error (CMSE) contribution towards the received video quality. Specifically we derive
Kambhatla, K R, Kumar, S, Cosman, P
openaire   +2 more sources

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

Suitability of Transport Techniques for Video Transmission in IP Networks [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2020
The paper discusses the problem of video transmission in an IP network. The authors consider the ability of using the most popular video codecs that use both the MPEG2 Transport Stream and Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH)
Tadeusz Uhl   +2 more
doaj   +1 more source

Compression of high dynamic range video using the HEVC and H.264/AVC standards [PDF]

open access: yesInternational Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, 2014
The existing video coding standards such as H.264/AVC and High Efficiency Video Coding (HEVC) have been designed based on the statistical properties of Low Dynamic Range (LDR) videos and are not accustomed to the characteristics of High Dynamic Range ...
Amin Banitalebi-Dehkordi   +3 more
semanticscholar   +1 more source

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