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Literatura académica sobre el tema "MPEG-DASH standard"

Autor: Grafiati

Publicado: 25 de mayo de 2024

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Artículos de revistas sobre el tema "MPEG-DASH standard"

Chaubet, Allan, George Henrique de Oliveira, Gustavo Valeira y Cristiano Akamine. "Practical tests with MMT and ROUTE/DASH on the transport layer of ATSC 3.0". SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING 2020, n.º 6 (1 de agosto de 2020): 56–65. http://dx.doi.org/10.18580/setijbe.2020.5.

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The development of new technologies allowed television systems to evolve over time. For the transport layer, the Movie Pictures Expert Group (MPEG) developed several standards to deliver multimedia content, including the MPEG-2 Transport Stream (TS), which has been widely explored for years. However, it was developed before the spread of the internet, which led to the interest in a new standard that could fulfill the needs from a connected world. One of these standards is the MPEG Multimedia Transport (MMT), which has inherited some features from the MPEG-2 TS, adapting them to be compatible with the Internet Protocol (IP). The broadband systems also needed a new standard compatible with Hypertext Transfer Protocol (HTTP), resulting in the development of the MPEG-Dynamic Adaptive Streaming over HTTP (DASH). To deliver DASH on broadcast channels, it was combined with the Real-time Object delivery over Unidirectional Transport (ROUTE) protocol. The Advanced Television Systems Committee 3.0 (ATSC 3.0) adopted many technologies to attend the requirements for the next generation of television systems, including both MMT and ROUTE/DASH. This paper presents a historic background of these delivery methods, as well as a brief technical review, focusing on a practical setup to test the methods mentioned, analyzing the differences and similarities of their properties.

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Sodagar, Iraj. "The MPEG-DASH Standard for Multimedia Streaming Over the Internet". IEEE Multimedia 18, n.º 4 (abril de 2011): 62–67. http://dx.doi.org/10.1109/mmul.2011.71.

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Timmerer, Christian. "MPEG column: 128th MPEG meeting in Geneva, Switzerland". ACM SIGMultimedia Records 11, n.º 4 (diciembre de 2019): 1. http://dx.doi.org/10.1145/3530839.3530846.

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The 128th MPEG meeting concluded on October 11, 2019 in Geneva, Switzerland with the following topics: •Low Complexity Enhancement Video Coding (LCEVC) Promoted to Committee Draft •2nd Edition of Omnidirectional Media Format (OMAF) has reached the first milestone •Genomic Information Representation --- Part 4 Reference Software and Part 5 Conformance Promoted to Draft International Standard The corresponding press release of the 128th MPEG meeting can be found here: https://mpeg.chiariglione.org/meetings/128. In this report we will focus on video coding aspects (i.e., LCEVC) and immersive media applications (i.e., OMAF). At the end, we will provide an update related to adaptive streaming (i.e., DASH and CMAF).

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Stockhammer, Thomas y Iraj Sodagar. "MPEG DASH: The Enabler Standard for Video Delivery over the Internet". SMPTE Motion Imaging Journal 121, n.º 5 (julio de 2012): 40–46. http://dx.doi.org/10.5594/j18188.

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Taha, Miran, Jose Miguel Jimenez, Alejandro Canovas y Jaime Lloret. "Intelligent Algorithm for Enhancing MPEG-DASH QoE in eMBMS". Network Protocols and Algorithms 9, n.º 3-4 (18 de febrero de 2018): 94. http://dx.doi.org/10.5296/npa.v9i3-4.12573.

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Multimedia streaming is the most demanding and bandwidth hungry application in today’s world of Internet. MPEG-DASH as a video technology standard is designed for delivering live or on-demand streams in Internet to deliver best quality content with the fewest dropouts and least possible buffering. Hybrid architecture of DASH and eMBMS has attracted a great attention from the telecommunication industry and multimedia services. It is deployed in response to the immense demand in multimedia traffic. However, handover and limited available resources of the system affected on dropping segments of the adaptive video streaming in eMBMS and it creates an adverse impact on Quality of Experience (QoE), which is creating trouble for service providers and network providers towards delivering the service. In this paper, we derive a case study in eMBMS to approach to provide test measures evaluating MPEG-DASH QoE, by defining the metrics are influenced on QoE in eMBMS such as bandwidth and packet loss then we observe the objective metrics like stalling (number, duration and place), buffer length and accumulative video time. Moreover, we build a smart algorithm to predict rate of segments are lost in multicast adaptive video streaming. The algorithm deploys an estimation decision regards how to recover the lost segments. According to the obtained results based on our proposal algorithm, rate of lost segments is highly decreased by comparing to the traditional approach of MPEG-DASH multicast and unicast for high number of users.

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Kapetanakis, Kostas, Markos Zampoglou, Athanasios G. Malamos, Spyros Panagiotakis y Emmanuel Maravelakis. "An MPEG-DASH Methodology for QoE-Aware Web3D Streaming". International Journal of Wireless Networks and Broadband Technologies 3, n.º 4 (octubre de 2014): 1–20. http://dx.doi.org/10.4018/ijwnbt.2014100101.

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Recent advances in web technologies have now created a ubiquitous environment for cross-platform and cross-device multimedia applications. Media files can now be reproduced in a wide range of devices, from mobile phones to desktop computers and web-enabled televisions, using a common infrastructure. This trend towards unifying the technological infrastructure, however, has given rise to a new array of problems resulting from the varying technological capabilities of the different devices and environments. This paper, proposes an adaptive streaming framework for the display of 3D models on a wide range of web-enabled devices. The open, XML-based X3D language for 3D graphics is combined with the MPEG-DASH standard for adaptive streaming. The end result is a framework that can adaptively display 3D graphics in the face of network or computational limitations, and dynamically adapt data flow to maximize user Quality of Experience in any situation.

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Zampoglou, Markos, Kostas Kapetanakis, Andreas Stamoulias, Athanasios G. Malamos y Spyros Panagiotakis. "Adaptive streaming of complex Web 3D scenes based on the MPEG-DASH standard". Multimedia Tools and Applications 77, n.º 1 (16 de diciembre de 2016): 125–48. http://dx.doi.org/10.1007/s11042-016-4255-8.

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Cranfill, Luke, Jeehyeong Kim, Hongkyu Lee, Victor Youdom Kemmoe, Sunghyun Cho y Junggab Son. "Efficient yet Robust Privacy Preservation for MPEG-DASH-Based Video Streaming". Security and Communication Networks 2021 (26 de agosto de 2021): 1–14. http://dx.doi.org/10.1155/2021/4702469.

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MPEG-DASH is a video streaming standard that outlines protocols for sending audio and video content from a server to a client over HTTP. However, it creates an opportunity for an adversary to invade users’ privacy. While a user is watching a video, information is leaked in the form of meta-data, the size of data and the time the server sent the data to the user. After a fingerprint of this data is created, the adversary can use this to identify whether a target user is watching the corresponding video. Only one defense strategy has been proposed to deal with this problem: differential privacy that adds sufficient noise in order to muddle the attacks. However, that strategy still suffers from the trade-off between privacy and efficiency. This paper proposes a novel defense strategy against the attacks with rigorous privacy and performance goals creating a private, scalable solution. Our algorithm, “No Data are Alone” (NDA), is highly efficient. The experimental results show that our scheme is more than two times efficient in terms of excess downloaded video (represented as waste) compared to the most efficient differential privacy-based scheme. Additionally, no classifier can achieve an accuracy above 7.07% against videos obfuscated with our scheme.

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Vlaović, Jelena, Snježana Rimac-Drlje y Drago Žagar. "Content Dependent Representation Selection Model for Systems Based on MPEG DASH". Electronics 10, n.º 15 (31 de julio de 2021): 1843. http://dx.doi.org/10.3390/electronics10151843.

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A standard called MPEG Dynamic Adaptive Streaming over HTTP (MPEG DASH) ensures the interoperability between different streaming services and the highest possible video quality in changing network conditions. The solutions described in the available literature that focus on video segmentation are mostly proprietary, use a high amount of computational power, lack the methodology, model notation, information needed for reproduction, or do not consider the spatial and temporal activity of video sequences. This paper presents a new model for selecting optimal parameters and number of representations for video encoding and segmentation, based on a measure of the spatial and temporal activity of the video content. The model was developed for the H.264 encoder, using Structural Similarity Index Measure (SSIM) objective metrics as well as Spatial Information (SI) and Temporal Information (TI) as measures of video spatial and temporal activity. The methodology that we used to develop the mathematical model is also presented in detail so that it can be applied to adapt the mathematical model to another type of an encoder or a set of encoding parameters. The efficiency of the segmentation made by the proposed model was tested using the Basic Adaptation algorithm (BAA) and Segment Aware Rate Adaptation (SARA) algorithm as well as two different network scenarios. In comparison to the segmentation available in the relevant literature, the segmentation based on the proposed model obtains better SSIM values in 92% of cases and subjective testing showed that it achieves better results in 83.3% of cases.

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Heo, Jeonghwan y Jechang Jeong. "Deceptive Techniques to Hide a Compressed Video Stream for Information Security". Sensors 21, n.º 21 (29 de octubre de 2021): 7200. http://dx.doi.org/10.3390/s21217200.

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With the recent development of video compression methods, video transmission on traditional devices and video distribution using networks has increased in various devices such as drones, IP cameras, and small IoT devices. As a result, the demand for encryption techniques such as MPEG-DASH for transmitting streams over networks is increasing. These video stream security methods guarantee stream confidentiality. However, they do not hide the fact that the encrypted stream is being transmitted over the network. Considering that sniffing attacks can analyze the entropy of the stream and scan huge amounts of traffic on the network, to solve this problem, the deception method is required, which appears unencrypted but a confidential stream. In this paper, we propose the new deception method that utilizes standard NAL unit rules of video codec, where the unpromised device shows the cover video and the promised device shows the secret video for deceptive security. This method allows a low encryption cost and the stream to dodge entropy-based sniffing scan attacks. The proposed stream shows that successful decoding using five standard decoders and processing performance was 61% faster than the conventional encryption method in the test signal conformance set. In addition, a network encrypted stream scan method the HEDGE showed classification results that our stream is similar to a compressed video.

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Tesis sobre el tema "MPEG-DASH standard"

Bouzakaria, Nassima. "Contributions au streaming HTTP adaptatif avancé". Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0037.

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Le streaming adaptatif HTTP est une technologie récente dans les communications multimédia, utilisant notamment le standard MPEG-DASH. L'un des principaux problèmes dans le déploiement des services de streaming en direct est la réduction de plusieurs types de latence tel que le délai de démarrage et la latence de bout en bout. Dans cette thèse, nous abordons le problème de ces latences dans les services de streaming en direct utilisant MPEG-DASH. Tout d'abord, nous examinons les causes du délai de démarrage dans les systèmes MPEG-DASH et les stratégies communes pour réduire ce délai. Nous proposons une nouvelle méthode basée sur HTTP / 1.1 qui est compatible avec les infrastructures Web existantes. Deuxièmement, nous étudions les principaux composants qui sont à l’origine de la latence totale, nous proposons un système de streaming en direct à faible latence. Troisièmement, nous montrons comment un système de streaming en direct utilisant MPEG-DASH et à faible latence peut être combiné avec un système utilisant un réseau Broadcast. Notre approche proposée garantit la synchronisation des deux contenus transmis via deux réseaux de distribution DASH et broadcast
HTTP adaptive streaming is a recent topic in multimedia communications with on-going standardization activities, especially with the MPEG-DASH standard which covers on demand and live services. One of the main issues in live services deployment is the reduction of various latencies, the initial delay before the playback and the overall end-to-end latency. In this thesis, we address the problem of these latencies in live DASH streaming. First, we review the causes of startup delay in DASH and common strategies used to reduce this delay. We propose a new method based on HTTP/1.1 and compatible with existing caching and delivery infrastructures for reducing the initial setup of an MPEG-DASH session. Second, we investigate the major contributor components to the end-to-end latency. We propose a complete novel low latency live DASH streaming system. Third, we show how such a low latency live DASH system can be used to enable combined broadcast and broadband services while keeping the client buffering requirements on the broadcast link low. Our proposed approach insures two functionalities: synchronization of both contents delivered through different distribution networks and keeping the client buffering requirements on the broadcast link low

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Chen, Chien Chang y 陳建彰. "MPEG-DASH Standard with SVC Video Streaming on Android Mobile Devices". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/03654902778498152363.

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碩士
國立清華大學
資訊工程學系
103
We design, implement, and evaluate an H.264/SVC decoder and an HTTP video streaming client on multi-core mobile devices. The decoder employs multiple decoder threads to leverage multi-core CPUs, and the streaming server/client support adaptive HTTP video streaming. To evaluate the decoder performance, we conduct experiments using real H.264/SVC videos on a tablet and a smart phone running Android 4.0. Our experimental results demonstrate that real-time H.264/SVC decoding is feasible on multi-core mobile devices. For example, for 960x544 and 480x272 videos, our decoder achieves up to 20.72 and 42.03 Frame-Per-Second (FPS), respectively. We also conduct extensive HTTP video streaming experiments over liveWiFi and 3G cellular networks. Our system achieves high frame rate (up to ~42 FPS), and short initial delay (as small as ~2.5 secs). We extend our testbed to support MPEG DASH (Dynamic Adaptive Streaming over HTTP) standard and SDL (Simple DirectMedia Layer) library. The benefits ofMPEG-DASH with SVC are that (i) the storage space requirement is reduced, (ii) segments can be reused to reduce server overhead, and (iii) switching events are performed faster. Last, we conduct experiments using MPEG-DASH standard and SDL library. The results show that the throughput of MPEG-DASH achieves up to ~15 Mbits/s, and our decoder achieves at least 50 FPS for 360x180 videos. We have made our testbed publicly available to the research communities.

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Actas de conferencias sobre el tema "MPEG-DASH standard"

Mueller, Christopher, Stefan Lederer, Joerg Poecher y Christian Timmerer. "Demo paper: Libdash - An open source software library for the MPEG-DASH standard". En 2013 IEEE International Conference on Multimedia and Expo Workshops (ICMEW). IEEE, 2013. http://dx.doi.org/10.1109/icmew.2013.6618220.

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