本文選題：字幕編輯 + 字幕播出��； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：網(wǎng)絡(luò)化和數(shù)字化的發(fā)展推動(dòng)著數(shù)字電視技術(shù)水平的不斷提升,使得電視臺(tái)對(duì)字幕制作軟件的要求越來(lái)越高。傳統(tǒng)的播出字幕創(chuàng)編系統(tǒng)已經(jīng)不能再滿足編輯字幕和播出字幕的需求。為了適應(yīng)當(dāng)今字幕制作的需求,很多公司研制出新一代播出字幕創(chuàng)編系統(tǒng),雖然在一定的程度上滿足了要求,但是新型的字幕機(jī)系統(tǒng)仍然存在一些問(wèn)題:1.對(duì)于帶圖像的字幕文件縮放時(shí)邊緣存在明顯的鋸齒現(xiàn)象,文本字幕的字體調(diào)整的過(guò)大時(shí)字體邊緣也會(huì)出現(xiàn)鋸齒現(xiàn)象。2.左飛滾動(dòng)字幕速度不能按需要調(diào)整。3.動(dòng)畫(huà)字幕和左飛滾動(dòng)字幕不能夠按次連續(xù)播放。4.字幕文件模板不能夠共享,當(dāng)多個(gè)頻道需要播放相同的字幕模板時(shí),用戶需要在多個(gè)頻道分別編輯字幕。本課題研究的目的是針對(duì)當(dāng)今電視臺(tái)字幕制作的實(shí)際需求,設(shè)計(jì)并實(shí)現(xiàn)一款界面優(yōu)良、功能齊全、性能良好的播出字幕創(chuàng)編系統(tǒng)。同時(shí)本課題針對(duì)現(xiàn)階段播出字幕創(chuàng)編系統(tǒng)存在的問(wèn)題作了分析研究,并給出了相應(yīng)的解決方案。本文完成的主要工作內(nèi)容如下:1.字幕編輯模塊的設(shè)計(jì)與實(shí)現(xiàn)。在編輯模塊能夠?qū)崿F(xiàn)字幕文件的添加;實(shí)現(xiàn)字幕文件屬性修改的操作;實(shí)現(xiàn)字幕文件的預(yù)覽,包括多字幕預(yù)覽和單節(jié)目預(yù)覽;實(shí)現(xiàn)字幕文件的數(shù)據(jù)管理,包括字幕保存、上載、下載等功能;實(shí)現(xiàn)字幕文件的共享。該模塊主要采用了GDIPlus技術(shù)、多線程技術(shù)。2.字幕播出模塊的設(shè)計(jì)與實(shí)現(xiàn)。在字幕播出模塊能夠?qū)崿F(xiàn)數(shù)據(jù)的下載;實(shí)現(xiàn)對(duì)播出字幕的管理操作,包括字幕文件添加、刪除、修改、刷新等操作;實(shí)現(xiàn)字幕文件的播放、發(fā)送、停止播放等功能。3.字幕渲染效果的實(shí)現(xiàn)。采用邊緣檢測(cè)技術(shù)和改進(jìn)的邊沿自適應(yīng)插值算法進(jìn)行圖像字幕縮放,消除圖像邊緣鋸齒現(xiàn)象;采用沿八個(gè)方向移位描邊的方法,消除文字的鋸齒現(xiàn)象。4.對(duì)系統(tǒng)進(jìn)行測(cè)試。對(duì)系統(tǒng)功能和性能展開(kāi)測(cè)試,測(cè)試結(jié)果滿足預(yù)期的要求。該系統(tǒng)在某些電視臺(tái)以投入使用,通過(guò)用戶反饋表明它是一套操作界面優(yōu)美、功能強(qiáng)大、易于操作、性能良好的系統(tǒng),能夠滿足電視臺(tái)制作字幕需求。
[Abstract]:With the development of network and digitalization, the technology level of digital TV is improving continuously, which makes the demand of subtitle making software more and more high. The traditional system can no longer meet the needs of editing and broadcasting subtitles. In order to meet the needs of today's subtitle production, many companies have developed a new generation of subtitle creation system, although to some extent meet the requirements, but the new subtitle machine system still has some problems: 1. The edge of the subtitle file with image is obviously sawtooth while the font of text subtitle is too large and the edge of text subtitle is also sawtooth. 2. The left-flying subtitle speed cannot be adjusted as required. 3. Animation subtitles and left-flying scrolling captions cannot be played sequentially. 4. The subtitle file template cannot be shared. When multiple channels need to play the same subtitle template, users need to edit the subtitles separately on multiple channels. The purpose of this research is to design and implement a subtitle creation system with excellent interface, complete function and good performance. At the same time, this paper analyzes and studies the problems existing in the current system of broadcast subtitle creation, and gives the corresponding solutions. The main work accomplished in this paper is as follows: 1. Design and implementation of subtitle editing module. In the editing module, the subtitle file can be added; the operation of modifying the properties of the subtitle file can be realized; the preview of the subtitle file, including multi-caption preview and single-program preview; the data management of the subtitle file, including the subtitle saving, uploading, and the previewing of the subtitle file are realized. Download and other functions; realize the sharing of subtitle files. This module mainly adopts GDIPlus technology, multithread technology. 2. 2. Design and implementation of subtitle broadcasting module. In the subtitle broadcast module can realize the data download; realize the management operation of the broadcast subtitle, including subtitle file add, delete, modify, refresh and so on; realize the subtitle file play, send, stop play and other functions. 3. The realization of subtitle rendering effect. Edge detection technique and improved edge adaptive interpolation algorithm are used for image subtitle scaling to eliminate the phenomenon of edge sawtooth, and the method of moving edge along eight directions is used to eliminate the sawtooth phenomenon of text. Test the system. The function and performance of the system are tested and the test results meet the expected requirements. The system has been put into use in some TV stations, and it is proved by user feedback that it is a system with beautiful operating interface, powerful function, easy operation and good performance, which can meet the needs of TV stations in making subtitles.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN949.197

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 邵欣欣;劉衛(wèi)東;;基于雙立方插值算法的圖像縮放硬件設(shè)計(jì)[J];電腦知識(shí)與技術(shù);2013年07期

2 王亮;未來(lái)字幕[J];西部廣播電視;2002年02期

相關(guān)碩士學(xué)位論文 前1條

1 吳貴善;基于偏微分方程的圖像放大[D];鄭州大學(xué);2011年

，

本文編號(hào)：1831307