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題 名 | Multimedia Synchronization with User Interactions Using Interactive Extended Finite State Machines (IEFSMS)=以Interactive Extended Finite State Machines (IEFSMs)為基礎的多媒體互動同步機制 |
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作 者 | 黃崇明; 王謙; | 書刊名 | 中國工程學刊 |
卷 期 | 21:3 1998.05[民87.05] |
頁 次 | 頁233-254 |
分類號 | 312.49 |
關鍵詞 | 多媒體; 同步; 擴充性有限狀態機; 互動功能; Multimedia; Synchronization; Extended finite state machinese; EFSMs; User interactions; |
語 文 | 英文(English) |
中文摘要 | 現今多媒體系統的特性之一便是互動功能的提供。對隨選視訊(Video-On- Demand, VOD)和隨選新聞(News-On-Demand, NOD)來說,互動功能更是必 需的功能之一。互動功能的提供,讓使用者在觀賞或瀏覽時更具彈性。也就是 說,由於互動功能的提供,使用者可以即時地控制多媒體資訊的播放流程,例 如:快轉、倒放等。在這一篇論文中,我們提出了Interactive Extended Finite State Machines(IEFSMs)模式來描述並解決互動式多媒體系統上的同步問題。 在我們所提出的IEFSM模式中,單一媒體內的同步(intra-medium synchronization)是由Actor IEFSM來控制,而不同媒體間的同步(intermedia synchronization)是由synchronizer IEFSM來控制。藉由Synchronizer 及Actor的溝通與合作,互動功能的動態性及不確定性便可以被加以描述,並 進而解決所發生的同步問題。 |
英文摘要 | One of the main and required characteristics of multimedia systems is the user-interaction service. The user-ineraction service is an essential requirement in some applications, e.g., Video-On-Demand (VOD) and News-On-Demand (NOD). The user-interaction service provides flexible multimedia presentations with user interactions. That is, users are allowed to have on-line adjustment of the presentation flow, e.g., skip some (boring)media units or reverse the presentation direction, to have some special features. In this paper, we propose an Interactive Extended Finite State Machine (IEFSM) model to specify synchronization issues in multimedia presentations with user interactions. By incorporating interrupt transitions and dynamic transitions in the IEFSM model, dynamic behaviors resulting from user interactions can be modeled using some IEFSMs. Using the IEFSM model, intra-medium synchronization is handled by an Actor, which is formally represented as an IEFSM; inter-media synchronization is handled by a Snynchronizer, which is also formally represented as an IEFSM. The communication between IEFSMs is message-passing through some First-In-First-Pit (FIFO) queues. In this way, the dynamic behaviors of user interactions, including reverse, skip, freeze-restart, and scale can be represented in IEFSM-based multimedia synchronization specifications. |
本系統中英文摘要資訊取自各篇刊載內容。