面向移動終端的富媒體技術(shù)研究
發(fā)布時間：2018-12-18 17:42
【摘要】：富媒體有別于傳統(tǒng)媒體,它將文本、圖形、圖片、動畫、音視頻等多種媒體對象在時間和空間上進(jìn)行有機(jī)結(jié)合,提供豐富的表現(xiàn)形式和交互能力。其主要特征是可基于時間或用戶交互產(chǎn)生動態(tài)行為。移動富媒體技術(shù)是針對移動終端發(fā)展起來的富媒體技術(shù),它的適用范圍很廣,包括移動交互式電視,廣告,電子雜志等各種交互式服務(wù)。一方面,發(fā)展移動富媒體應(yīng)用的需求日益迫切,另一方面,移動終端資源受限的特點將成為移動富媒體應(yīng)用發(fā)展難點,本文主要研究面向移動終端的富媒體技術(shù),主要內(nèi)容和貢獻(xiàn)點包括: 1.通過分析具有代表性的國外移動富媒體技術(shù)LASeR、DIMS、FlashLite、OMA-RME等,提出了自主的移動富媒體標(biāo)準(zhǔn)u-RMS,該標(biāo)準(zhǔn)分為3個層次,解決了富媒體內(nèi)容的展現(xiàn)、更新及傳輸在標(biāo)準(zhǔn)層面上的定義。其中展現(xiàn)采用SVG Tiny1.2、SMIL、DOM Event等標(biāo)準(zhǔn)作為基礎(chǔ),結(jié)合對移動終端應(yīng)用的理解進(jìn)行了擴(kuò)展;在場景更新方面,支持局部插入、刪除、替換當(dāng)前場景內(nèi)容的操作;在傳輸方面,為場景定義了場景單元的概念,用于指導(dǎo)場景的流化傳輸。 2.提出了一種適合移動終端的富媒體場景控制方法。該方法采用XML標(biāo)記語言描述語法,通過定義標(biāo)簽以及屬性來表示語義,并且利用場景樹的遍歷流程進(jìn)行執(zhí)行,解決了場景的邏輯控制、狀態(tài)恢復(fù)以及終端設(shè)備本地方法調(diào)用的問題。該方法可以與場景解析使用相同的模塊,并且與場景的執(zhí)行過程結(jié)合緊密,具有執(zhí)行效率高以及消耗資源少的特點。通過對該方法進(jìn)行的仿真和分析,證明了在移動富媒體場景控制方面的優(yōu)勢。 3.提出移動終端上富媒體引擎優(yōu)化策略。富媒體引擎是富媒體應(yīng)用的運(yùn)行環(huán)境,在設(shè)計的時候需要考慮運(yùn)行性能和空間的問題,本文介紹了針對u-RMS標(biāo)準(zhǔn)實現(xiàn)的富媒體引擎,并對引擎設(shè)計的關(guān)鍵技術(shù)進(jìn)行了探討。主要包括場景存儲策略、場景合成以及場景渲染三個方面。其中場景存儲策略中研究了場景解析流程、場景元素與屬性存儲結(jié)構(gòu)、動畫元素處理方式;介紹了場景合成原理,以及通過減少遍歷場景樹次數(shù)來達(dá)到提高運(yùn)行效率的策略;在場景渲染方面提出了局部更新策略、Grid多邊形填充算法以及適用于移動終端的2次曲線Bezier擬合方式。 4.文字信息也是富媒體應(yīng)用的重要組成部分,矢量文字的處理往往會成為應(yīng)用性能的瓶頸,本文針對移動終端的特點,結(jié)合漢字組件技術(shù)以及矢量筆畫字體提出了一種字庫存儲結(jié)構(gòu),該字庫將漢字信息分為三個部分來存儲,分別是漢字索引、漢字結(jié)構(gòu)信息、漢字組件矢量數(shù)據(jù)信息,具有占用空間小,合成速度快的優(yōu)點,并解決了以往漢字組件字體失真的問題。本文還針對筆畫字體提出了一種輪廓化算法,該算法根據(jù)筆畫線段信息只需遍歷一次就可完成多邊形輪廓的確定,而且算法優(yōu)化了生成的多邊形頂點數(shù)量,考慮了遍歷過程中的異常情況,降低了渲染負(fù)擔(dān),該算法也可經(jīng)過少許改動,成為通用的描邊算法。 5.在富媒體傳輸方面,本文提出了u-RMS傳輸體系,定義了傳輸協(xié)議格式,該協(xié)議可以通過實時流的方式傳輸富媒體場景,同時提出了場景優(yōu)先級、隨機(jī)接入點及冗余傳輸?shù)牟呗杂糜讷@得更好的傳輸質(zhì)量,并分析了富媒體場景在廣播環(huán)境中傳輸?shù)目尚行?分別論證了場景與更新采用相同或不同信道傳輸時的優(yōu)劣。 6.本文結(jié)合CMMB移動多媒體廣播網(wǎng)絡(luò)及移動通信網(wǎng)絡(luò),利用先進(jìn)的u-RMS富媒體技術(shù),提出了移動富媒體交互電視示范系統(tǒng)原型,用于開發(fā)符合手機(jī)特性的富媒體互動應(yīng)用。從內(nèi)容層面、技術(shù)層面進(jìn)一步探索三網(wǎng)融合新型電視業(yè)務(wù),展現(xiàn)手機(jī)電視集多種媒體類型為一身的特質(zhì),力求使手機(jī)電視最終成長為受眾不可或缺的獨立媒體。
[Abstract]:The rich media is different from the traditional media, which organically combines various media objects, such as text, graphics, pictures, animation, audio and video, in time and space, and provides rich expression and interaction capability. The main feature is that dynamic behavior can be generated based on time or user interaction. Mobile media-rich technology is a media-rich technology developed for mobile terminals. It has a wide range of applications, including interactive services such as mobile interactive television, advertising, and electronic magazines. On the one hand, it is becoming more and more urgent to develop the mobile-rich media application. On the other hand, the resource-limited features of the mobile terminal will become the difficult point of the development of the mobile-rich media. 1. By analyzing the representative foreign mobile rich media technology, LASR, DIMS, FlashLite, OMA-RME, etc., an autonomous mobile rich media standard u-RMS is proposed, which is divided into 3 levels, which solves the presentation, updating and transmission of rich media content at the standard level. Definition. The presentation is based on standards such as SVG Tiny1. 2, SMIL, and DOM Event. In combination with the understanding of the application of mobile terminal, the operation of local insertion, deletion and replacement of current scene content is supported in the aspect of scene update; in the aspect of transmission, the scene unit is defined for the scene a concept used to guide the fluidization of the scene transmission. 2. A rich media field suitable for mobile terminals The method comprises the following steps of: describing the syntax by using an XML markup language, expressing the semantics by defining a label and an attribute, and performing execution by using the traversing process of the scene tree, and solving the logic control, state recovery of the scene and the local method of the terminal device The method can be used with the same module as the scene resolution, and is closely combined with the execution process of the scene, and has the advantages of high execution efficiency and resource consumption. Based on the simulation and analysis of the method, the control of the mobile rich media scene is proved. The advantage of the aspect. 3. To propose a rich mobile terminal The media engine optimization strategy. The rich media engine is the running environment of the rich media application. In the design, the problem of running performance and space needs to be considered. In this paper, the rich media engine implemented for the u-RMS standard is introduced, and the design of the engine is closed. The key technology is discussed. It mainly includes scene storage strategy, scene synthesis and In the three aspects of scene rendering, scene analysis flow, scene element and attribute storage structure and animation element processing method are studied in the scene storage strategy, the principle of scene synthesis is introduced, and the number of the traversing scene trees is reduced to reach the present invention. The strategy of high running efficiency; the local update strategy, the Grid polygon filling algorithm and the 2 curves Be applicable to the mobile terminal are put forward in the scene rendering The text information is also an important part of the rich media application. The processing of vector text tends to be the bottleneck of the application performance. In this paper, the characteristics of the mobile terminal, the combination of the Chinese character component technology and the vector stroke font are combined. The invention provides a word stock storage structure, which divides the Chinese character information into three parts, namely the Chinese character index, the Chinese character structure information and the Chinese character component vector data information, has the advantages of small occupied space and high synthesis speed, The problem of the font distortion of the Chinese character component is also presented in this paper. In this paper, a contour algorithm is proposed for the stroke font. The algorithm can finish the determination of the polygon contour only once, and the algorithm optimizes the number of the generated polygon vertices, and takes into account the differences in the traversal process. Normally, the rendering load is reduced, and the algorithm can also be modified with a few In the aspect of rich media transmission, the u-RMS transmission system is proposed, and the format of the transport protocol is defined. The protocol can transmit the rich media scene in a real-time stream, and the scene priority, the random access point and the redundant transmission are also proposed. The strategy is used to obtain better transmission quality, and the feasibility of the transmission of rich media scene in the broadcast environment is analyzed. Using the advanced u-RMS rich media technology, this paper presents the prototype of mobile multimedia interactive television demonstration system by using the advanced u-RMS rich media technology in combination with the CMMB mobile multimedia broadcasting network and the mobile communication network. In order to make the mobile phone electric, the new TV service of the three-network is further explored from the content level and the technical level, and the characteristics of the mobile phone TV set with a variety of media types are displayed, and the mobile phone is made to
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2010
【分類號】：TN929.5
本文編號：2386238
[Abstract]:The rich media is different from the traditional media, which organically combines various media objects, such as text, graphics, pictures, animation, audio and video, in time and space, and provides rich expression and interaction capability. The main feature is that dynamic behavior can be generated based on time or user interaction. Mobile media-rich technology is a media-rich technology developed for mobile terminals. It has a wide range of applications, including interactive services such as mobile interactive television, advertising, and electronic magazines. On the one hand, it is becoming more and more urgent to develop the mobile-rich media application. On the other hand, the resource-limited features of the mobile terminal will become the difficult point of the development of the mobile-rich media. 1. By analyzing the representative foreign mobile rich media technology, LASR, DIMS, FlashLite, OMA-RME, etc., an autonomous mobile rich media standard u-RMS is proposed, which is divided into 3 levels, which solves the presentation, updating and transmission of rich media content at the standard level. Definition. The presentation is based on standards such as SVG Tiny1. 2, SMIL, and DOM Event. In combination with the understanding of the application of mobile terminal, the operation of local insertion, deletion and replacement of current scene content is supported in the aspect of scene update; in the aspect of transmission, the scene unit is defined for the scene a concept used to guide the fluidization of the scene transmission. 2. A rich media field suitable for mobile terminals The method comprises the following steps of: describing the syntax by using an XML markup language, expressing the semantics by defining a label and an attribute, and performing execution by using the traversing process of the scene tree, and solving the logic control, state recovery of the scene and the local method of the terminal device The method can be used with the same module as the scene resolution, and is closely combined with the execution process of the scene, and has the advantages of high execution efficiency and resource consumption. Based on the simulation and analysis of the method, the control of the mobile rich media scene is proved. The advantage of the aspect. 3. To propose a rich mobile terminal The media engine optimization strategy. The rich media engine is the running environment of the rich media application. In the design, the problem of running performance and space needs to be considered. In this paper, the rich media engine implemented for the u-RMS standard is introduced, and the design of the engine is closed. The key technology is discussed. It mainly includes scene storage strategy, scene synthesis and In the three aspects of scene rendering, scene analysis flow, scene element and attribute storage structure and animation element processing method are studied in the scene storage strategy, the principle of scene synthesis is introduced, and the number of the traversing scene trees is reduced to reach the present invention. The strategy of high running efficiency; the local update strategy, the Grid polygon filling algorithm and the 2 curves Be applicable to the mobile terminal are put forward in the scene rendering The text information is also an important part of the rich media application. The processing of vector text tends to be the bottleneck of the application performance. In this paper, the characteristics of the mobile terminal, the combination of the Chinese character component technology and the vector stroke font are combined. The invention provides a word stock storage structure, which divides the Chinese character information into three parts, namely the Chinese character index, the Chinese character structure information and the Chinese character component vector data information, has the advantages of small occupied space and high synthesis speed, The problem of the font distortion of the Chinese character component is also presented in this paper. In this paper, a contour algorithm is proposed for the stroke font. The algorithm can finish the determination of the polygon contour only once, and the algorithm optimizes the number of the generated polygon vertices, and takes into account the differences in the traversal process. Normally, the rendering load is reduced, and the algorithm can also be modified with a few In the aspect of rich media transmission, the u-RMS transmission system is proposed, and the format of the transport protocol is defined. The protocol can transmit the rich media scene in a real-time stream, and the scene priority, the random access point and the redundant transmission are also proposed. The strategy is used to obtain better transmission quality, and the feasibility of the transmission of rich media scene in the broadcast environment is analyzed. Using the advanced u-RMS rich media technology, this paper presents the prototype of mobile multimedia interactive television demonstration system by using the advanced u-RMS rich media technology in combination with the CMMB mobile multimedia broadcasting network and the mobile communication network. In order to make the mobile phone electric, the new TV service of the three-network is further explored from the content level and the technical level, and the characteristics of the mobile phone TV set with a variety of media types are displayed, and the mobile phone is made to
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2010
【分類號】：TN929.5
【引證文獻(xiàn)】
相關(guān)期刊論文 前1條
1 張丹;;富媒體技術(shù)在操作考試系統(tǒng)中的應(yīng)用研究[J];黑龍江教育學(xué)院學(xué)報;2012年11期
相關(guān)碩士學(xué)位論文 前1條
1 李釗成;富媒體播放器在Android平臺上的移植[D];云南大學(xué);2012年
，本文編號：2386238
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