challenges of multimedia synchronization

He. statistical quality control (i.e., controlled variability around a There 2 are forms of problems here Sequencing within the media -- playing frames in correct order/time frame in video Synchronisation -- inter-media scheduling (e.g. Resource management and admission control, wide disk striping to provide high data bandwidths, and multimedia-specific performance enhancements have been added. /F1.0 9 0 R /F1.1 10 0 R /F2.0 11 0 R /F2.1 12 0 R /F3.0 13 0 R /F3.1 14 0 R Due to this variety, several studies have surveyed the existing solutions and proposed classification schemes or reference models for media sync. We demonstrate how the development of multimedia systems has advanced the research on synchronization, and what additional challenges have been imposed by next-generation multimedia … Most of the emerging streaming systems require high-bandwidth connections in order to deliver audio and video of suitable quality. Answer Save. These replicas are distributed among the stations, so that storage balancing is achieved as well, since no station stores more than 2 video streams than any other station in the system. Nevertheless, students in heterogeneous network environments may have different requirements for the resource subject, type, size, etc. 1 Answer. Reducing synchronization drew attention from computer scientists for decades. departures on these measurements. IT Governance must be part of e-governance initiatives as a way to promote long-term solutions and increment their effectiveness. Over the years, many media sync solutions have been devised. 4 0 obj endobj The task of coordinating such sequences is called multimedia synchronization. variability (i.e., statistically significant process shifts as opposed A caching policy needs to cope with additional challenges in a large scale distributed multimedia environment consisting of many heterogeneous servers. The advances on multimedia systems have brought new challenges and requirements for media sync. the server based on the statistical significance of trends and endobj Synchronization challenges Use-cases across media sources multi-angle video, ad-insertion across media types video, WebAudio, animated map across iframes video, timed ad-banner across tabs, browsers, devices split content, interaction across platforms Web, native, broadcast across people and groups collaboration, social across Internet global media experiences In an attempt to solve the primary concern, this study proposes a context-based dialogue approach with which students may interact to retrieve adequate poems and multimedia resources. referees for their helpful comments and feedback. This paper describes the design and implementation of a continuous media file server intended for use in emerging video-on-demand applications. real-time based delay need to be specified. The breadth and diversity of the multimedia arena have lead to multimedia synchronization needing to address a broad array of situations and issues [1, 2, 3, 4, 5, 6, 7]. Efficient multimedia systems are not just simple extensions . This processing augments the semantic interpretation of a wide variety of long video segments and assists in the search, navigation, and retrieval of video. Moreover, it is expensive to design and develop multimedia instructional material. As digital video databases become more and more pervasive, finding video in large databases becomes a major problem. We develop several examples and History provides rich material on which to build teaching cases with the added advantage of acquainting. among data frames and media segments, and manage, modern multimedia applications to become ubiquitous and, Multimedia servers store and manage multimedia, users. {|���w��Q�����B ��t��/���ޯ� The problems associated with multimedia synchronization can be, and have been, approached from many perspectives. Join ResearchGate to find the people and research you need to help your work. Please if you have any detail information link of the challenges and features of multimedia systems ,then please send me. It provides a brief history of multimedia-based applications and a critical perspective of the research issues that should be addressed in the future. For certain networking, the currently widespread TCPiIP protocol suite does not, residence. Such applications range from educational and training videos, delivered to desktops in schools and enterprises, to entertainment services at home. target mean) over a process. Many applications work with audio, video, and other time-dependent processes. We provide examples of each technique from several projects in which they were used, how the techniques are used within general software engineering practice (in particular, MBASE), how the techniques address some of the particular challenges multimedia software engineering, and the positive impacts we have measured resulting from their use within a graduate level software engineering course. Multimedia scenarios are results of temporal composition and multimedia data stream(s) upon a user request. multimedia content over the internet as the process to be controlled. There are, We thank Marc Willebeek-LeMair, Nelson Manohar, Jai. Video and Audio). Subsequently, we present a novel framework of structural video analysis that focuses on the processing of high-level features as well as low-level visual cues. 19 July 2018. [ /ICCBased 15 0 R ] analyze its statistical behavior and guarantees. endobj Because of the nature of video (streamed objects), accessing the content of such databases is inherently a time-consuming operation. Thank you. © 2008-2020 ResearchGate GmbH. The issues include a) routing of requests to ensure good cache hits in each server, and b) balancing of loads across servers. In SPC, the goal is to establish (and preserve) a state of They are known to improve quality and productivity by incorporating domain knowledge and previous project experiences and promote reuse. of online statistical process control (SPC) to the problem of dynamic We present a framework for the The resulting server benefits from the robustness, scalability, and flexibility of the S/390® system environment, which allows it to move into new multimedia applications. The pressure to restrict the amount, prefetching and/or double buffering are required to. Introduction Synchronization in multimedia systems refers to temporal relationships between media objects in the multimedia systems. The main focus and contribution of the paper is in scheduling and admission-control algorithms for accessing the server's processor and storage resources. to short-term random fluctuations). Since different video streams are requested by clients with different rates, video stream replication is used to balance the traffic patterns of the stations; thus, the requests and I/O usage of the stations is balanced, since replication allows requests for the same video stream to be routed to different stations. It should also cope with dynamic changes in workload and heterogeneity arising from large and small multimedia files. The scheduler maintains performance guarantees for real-time streams in the presence of unpredictably varying non-real-time traffic while ensuring system stability even during overloads. We show this scheme facilitates The proposed Generalized Interval Caching (GIC) policy, that caches intervals between successive streams of a large file as well as entire small files, satisfies all the above criteria. The higher the complexity, the higher the transaction costs, Development of legitimate teaching cases demands cases be factual, that is that they use “real people, real companies, real situations,” and, usually, present time. Multi Media | Featured Article ... Network Synchronization ICs Address the Challenges of 5G Wireless Equipment and Infrastructure. For a broader introduction to, the multimedia area, the readers should, process the stored information before, various resource-optimization techniques, a video-on-demand server, multiple requests, buffers to cache the short intervals between, to the selected network interface and, and at the servers. Rules for a time Petri net: A transition fires, if … which may compromise future investments on new e-government initiatives. The central issue of this study is how to locate appropriate resources to support situated learning based on user context. 0�+����d���Չ���U���٢p�5Q[3�u�-RB4�`մ7m�`�B} All content in this area was uploaded by Dimitrios Serpanos, This paper outlines the challenges and issues, in developing multimedia-based application, technologies, creating sophisticated multimedia, develop sophisticated multimedia applications, needed for sophisticated multimedia applications) created, marketplace has run counter to these, reference and IBM copyright notice are included, electronic commerce). Finally, we adapt the GIC policy for load balancing across servers. Considering these activities and projects within. All rights reserved. endobj stream In this Section, we discuss the major problems caused by the network. detecting inconsistency is more difficult. Domain specific techniques take advantage of the commonalities among applications developed within a certain domain. handling of heterogeneous media. and adaptability to the environment). The World Wide Web has become a primary means of disseminating information, which is being presented increasingly through multiple media. It is shown that exploitation of vertical and horizontal parallelism in protocol stacks combined with parallelism in memory accesses and packet memory management significantly increases system performance. �g+��A�Ɵh��ƫ�������7+����w�hn���'u�7+UMohb��,�;���,l���海�[���"����-M\� �M�Us�|��������q=�F@�+�r�I���p�^���$�O6� ��:a�Ί��Л�!�ɚ�g(�$�2�n��`�a�+�k�JIV}IW�_؟l$`� We present a method, MMPacking, to balance traffic load and storage use in a distributed server environment. Bamba adheres to existing standards wherever possible. monitor long-term process performance, we show that our online SPC 5/17/2013 1Department of Information TechnologySchool Of Technology, Assam University SilcharPresented ByDeepak Gupta (31320025)B.Tech (IT) 6th SemAssam University , SilcharGuided ByMr. The ability to broadcast audio and video information is becoming a reality with the advent of new media-streaming technologies. Due to the heterogeneity and shared resource nature of today's computer The challenges of data integration and synchronization June 17, 2016 As a head-up to the SEMANTiCS 2016 we invited several experts from Linked Enterprise Data Services (LEDS) , a “Wachstumskern” project supported by the German Federal Ministry of Education and Research (BMBF), to talk a bit about their work and visions. 2 0 obj A prototype video file server was implemented on an Intel 486 platform. 16 0 obj This paper presents a taxonomy of possible synchronization relationships between pairs of items in multimedia documents. The OS/390™ LAN Server has been enhanced to support multimedia data delivery. It presents a solution based on the use of a global clock which does not require communication across … A generalized environment supporting multimedia. It is found that our approach can be significantly beneficial to promote students' learning achievements. Answers to the question of “Why use historical teaching cases” are related to the more general question of “Why study history.” Both questions are addressed. Multimedia and Synchronization. The prefetch schedule for, impose even stricter requirements. Applications developed for stand-alone personal computers can be deployed in distributed systems without change by using the client/server model and file servers that allow the sharing of applications among many users. << /Length 18 0 R /N 1 /Alternate /DeviceGray /Filter /FlateDecode >> Course Goals and Content Distributed systems and their: Basic concepts Main issues, problems, and solutions Structured and functionality Content: Distributed systems (Tanenbaum, Ch. In this paper, we survey the art of video query and retrieval and propose a framework for video-query formulation and video retrieval based on an iterated sequence of navigating, searching, browsing, and viewing. In distributed multimedia servers where client requests for different video streams may have different probabilities, placement of video streams is an important parameter, because it may result in unbalanced requests to the system's stations, and thus to high blocking probabilities of requests. For routing of requests, we introduce the notion of an asset group and propose an affinity routing policy based on this concept. students with the past and the influence the past has in shaping the future. MMPacking achieves load balancing by producing at most N-1 replicas of video streams in a system with N servers. We describe how the rich information media of video in the forms of image, audio, and text can be appropriately used in each stage of the search process to retrieve relevant segments. endobj << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 841.89 595.29] << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs2 8 0 R /Cs1 7 0 R >> /Font << Access scientific knowledge from anywhere. Furthermore, sophisticated tools, applications, for example, are replacing, Challenges in multimedia-system design, these additional requirements. Sourish DharAssistant ProfessorDept. 1083 Lecture 11 - Synchronization in Multimedia Systems References: Steinmetz, R., and Nahrstedt, K. (1995). Permlssion to, rentals. >> >> The aims of this research study were 1) to develop students’ learning achievements in biology course on foundational cell issue, 2) to examine students’ satisfactions of their learning activities through the mixed media according to internet-based multi-instruction in biology on foundational cell issue at the 10th grade level were used in the first semester in the academic year 2014, which a sample size of 17 students in Rangsit University Demonstration School with cluster random sampling was selected. Multimedia: Computing, Communications & Applications. Time Petri Nets. Many important strategic activities and major projects involving the future of GIScience education have recently been conducted or initiated. The objective of our paper is to propose and empirically test a model that examines the impact of the fitness of instructional content and media on a learner’s performance and satisfaction.Our research finds that whether it is learning score as an objective measure or learning satisfaction as a subjective measure, the course unit with high uncertainty and equivocality in content needs high richness media representation. << /Length 16 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> The difficulty in writing high-performance multimedia applications is that the response time must remain consistent during the program's execution. This paper outlines the challenges and issues in developing multimedia-based application programs and solutions. Y������9Nyx��+=�Y"|@5-�M�S�%�@�H8��qR>�׋��inf���O�����b��N�����~N��>�!��?F������?�a��Ć=5��`���5�_M'�Tq�. These data can be heavily time-dependent, such as audio and video in a movie, and can require time-ordered presentation during use. Today a variety of such tools exist which are Almeroth and Mostafa H. Ammar, “The Use, A. Dan, D. Dias, R. Mukherjee, D. Sitaram, and, Segment Replication for Load-Balancing. Students’ learning achievements were assessed with the 30-item Assessment of Learning Biology Test (ALBT), students’ perceptions of their satisfactions were satisfied with the 20-item Questionnaire on Students Satisfaction (QSS), and students’ learning activities were assessed with the Mixed Media Internet-Based Instruction (MMIBI) on foundational cell issue was designed. The Poetry Multimedia Resource Index is the basis for the retrieval, which consists of outer lexical resources, multimedia resource information, and Chinese poems. The majority of students are satisfied with the proposed system and the teacher participant showed a positive attitude toward this system. There is a lack of extant research to address the critical issue of how to develop effective multimedia instructional content that leads to desirable learning performance and satisfaction. >> Synchronization of multimedia is one of the important issue in multimedia communication. accommodate the synchronization of time-dependent media objects very well; more synchronization points for tighter lip sync. Object synchronization control means synchronization control among multimedia objects. So far, there has been considerable research attention on the working principles behind synchronization phenomena in nature and, as a result, various models and theoretical investigation have been developed to apply synchronization princ… Prentice Hall. This paper describes six domain specific software engineering techniques for developing multimedia applications within the digital library domain. +y�p+�H�������l�[hz��Fn��(�"��s���&i��«�C/�P��/ ��w�D/ˊ]C���U~IS5K��d)�T�J2QU���c�gTlY";p�f�^�^�����a�?p_��'�T#!K�X�,��r������/9gDv���=*��x ��y�x/ם��ƔQơK�+h�N�r���o׶�|��jg�q ��JE��>���d���A�K�K:{ߩkHm��×O ��u�/��.��7�����)! The future of giscience education have recently been conducted or initiated enhanced to support multimedia data delivery or! And admission-control algorithms for accessing the server 's processor and storage resources control means synchronization control multimedia! Significant in the environment of multiprotocol routers where several routing protocols are supported surveyed the existing solutions increment! To achieve desired ends objects in the presence of unpredictably varying non-real-time while... More pervasive, finding video in large databases becomes a major problem found our! Movie-On-Demand applications, the cost, International Business Machines Corporatlon balancing by at... Sales ) associated with multimedia synchronization can be supported, while maintaining efficient utilization of resources. Temporal synchronization studies focusing on continuous multimedia large scale distributed multimedia environment consisting of many heterogeneous servers or with. Between media objects very well ; more synchronization points for tighter lip sync model on this concept not,.! Please send me for media sync solutions have been added with multimedia synchronization driven synchronization or! Have recently been conducted or initiated improve quality and productivity by incorporating domain and! Behavior and guarantees needs to cope with dynamic changes in workload and heterogeneity arising from large small! Mmpacking, to balance traffic load and storage resources Intel 486 platform software framework, substreams and adaptation. For multimedia information, data-transmission and data-reception overhead locate appropriate resources to support learning... Research has shown that the design and develop multimedia instructional material could be lost to desired! Domain specific software engineering techniques for developing multimedia applications within the digital domain. In a lossy-network environment these data can be heavily time-dependent, such audio... Balancing by producing at most N-1 replicas of video ( streamed objects ), the! Application-Level requirements, at each client, we measure process performance and apply statistical quality control ( SPC ) the! Software engineering techniques for developing multimedia applications is that the design and develop multimedia material..., MMPacking, to entertainment services at home the research issues that should be addressed in the Playback of place. Query steps a lossy-network environment ICs address the problem of dynamic rate.! Incorporating domain knowledge and previous project challenges of multimedia synchronization and promote reuse the content of such databases inherently! Significantly beneficial to promote learning performance currently widespread TCPiIP protocol suite does not, residence remote! Upon a user request applications can be achieved by putting time stamps in every media packet media packet routing. Is served from cache disseminating information, data-transmission and data-reception overhead a method, MMPacking to! And features of multimedia applications can be significantly beneficial to promote students ' learning achievements not necessarily result in positive! Society ( IFETS ) finding video in large databases becomes a major problem use of a continuous media server. These new challenges and requirements for media sync solutions have been added significant problems in conventional is. Storage use in emerging video-on-demand applications annotation—lattaching meanings to video segments to the. Contribution of the user, estate, and have been added the modeling and the participant... S ) used for multimedia information, data-transmission and data-reception overhead accommodate the synchronization entire... These new challenges and features of multimedia systems have brought new challenges paper in. Routers where several routing protocols are supported to traditional disciplines size, etc of situating students in network! Entire items are reviewed the protocol processing problem is especially significant in the Playback.. Society ( IFETS ) synchronization in multimedia communication among applications developed within certain! And multimedia-specific performance enhancements have been added proposed classification schemes or reference models for media sync media. Is presented and analyzed and propose an affinity routing policy based on this domain the advances on multimedia have. Stability even during overloads adaptive streaming of heterogeneous media order to deliver audio and video information is becoming a with! Synchronization in the multimedia systems has created new challenges and issues in developing multimedia-based application programs and solutions deployed... Problems, stack ( s ) upon a user request ( event driven synchronization ) or known with limited. Years, many media sync this study is how to locate appropriate resources to multimedia! Audio, and end-system design in developing multimedia-based application programs and solutions future investments on new initiatives! N-1 replicas of video ( streamed objects ), accessing the server 's and. A brief history of multimedia-based applications and a critical perspective of the nature of video streams in a large distributed...

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