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便攜式3D影音設(shè)備圖像處理技術(shù)研究

發(fā)布時(shí)間:2018-07-17 08:12
【摘要】:與普通圖像相比,立體圖像增加了場(chǎng)景深度信息特征,能給觀眾提供更加真實(shí)的視覺(jué)感受。隨著多媒體技術(shù)的迅速發(fā)展,立體視頻已走進(jìn)千家萬(wàn)戶(hù),為普通大眾所熟悉和喜愛(ài)。 裸眼3D技術(shù)是無(wú)需佩戴特殊眼鏡即能欣賞到立體效果的新型圖像顯示技術(shù),在教育、廣告、娛樂(lè)等領(lǐng)域具有廣泛的應(yīng)用。本文針對(duì)立體圖像在裸眼立體顯示器上的顯示過(guò)程進(jìn)行探討,利用微軟的MFC平臺(tái)以及知名的開(kāi)源視頻編解碼庫(kù)FFmpeg實(shí)現(xiàn)了對(duì)立體圖像的相應(yīng)處理,并探討了立體圖像在手持媒體設(shè)備上的顯示。主要研究?jī)?nèi)容及研究成果如下: (1)在深入理解裸眼立體顯示器光學(xué)原理和靜態(tài)圖像數(shù)據(jù)結(jié)構(gòu)及其編解碼標(biāo)準(zhǔn)的基礎(chǔ)上,利用MFC開(kāi)發(fā)出立體圖片處理軟件。處理后的立體圖片像素應(yīng)與顯示器光柵具有嚴(yán)格的對(duì)應(yīng)關(guān)系,使得能夠滿(mǎn)足人眼視覺(jué)融合機(jī)制,使觀察者獲得深度感知。 (2)為了實(shí)現(xiàn)立體圖像的快速融合處理,本文提出了基于矩陣變換的像素處理方法,在軟件設(shè)計(jì)中采用這一方法進(jìn)行了驗(yàn)證。在視頻播放器的軟件設(shè)計(jì)部分,使用FFmpeg對(duì)視頻進(jìn)行解碼操作,SDL媒體庫(kù)負(fù)責(zé)顯示圖像。整個(gè)軟件分成三個(gè)模塊:文件解析模塊,解碼模塊,播放器顯示模塊。文件解析模塊用于對(duì)文件格式進(jìn)行分析,注冊(cè)需調(diào)用的解碼庫(kù);解碼模塊使用FFmpeg解碼庫(kù)將視頻文件解碼成流信息,為了降低開(kāi)發(fā)難度,本課題只采用TS流解碼庫(kù);播放器顯示模塊使用SDL媒體庫(kù)顯示解碼后的視頻畫(huà)面。 (3)通過(guò)對(duì)Android平臺(tái)系統(tǒng)架構(gòu)的深入分析可知,基于Linux開(kāi)發(fā)的FFmpeg編解碼庫(kù)在理論及技術(shù)上是能夠移植到Android平臺(tái)上的。其中移植最重要的是將FFmpeg編譯成so文件,這一步驟可以在Linux環(huán)境下完成,本文著重講述在Ubuntu環(huán)境下利用Android NDK編譯成so鏈接庫(kù)文件。 綜上所述,本文主要完成了靜態(tài)立體圖像在裸眼立體顯示器上的顯示、動(dòng)態(tài)立體圖像在裸眼立體顯示器上的播放研究,對(duì)將立體視頻播放器移植到Android平臺(tái)作了探討研究。
[Abstract]:Compared with ordinary images, stereo images can provide more real visual feelings to the audience by adding depth information features of the scene. With the rapid development of multimedia technology, stereo video has entered thousands of households, familiar and loved by the general public. Naked eye 3D technology is a new image display technology which can enjoy stereoscopic effects without wearing special glasses. It has been widely used in education, advertising, entertainment and other fields. In this paper, the display process of stereo image on naked stereoscopic display is discussed, and the corresponding processing of stereo image is realized by using MFC platform of Microsoft and FFmpeg, a well-known open source video codec library. The display of stereoscopic images on handheld media devices is discussed. The main research contents and results are as follows: (1) based on the deep understanding of the optical principle of the naked eye stereoscopic display and the static image data structure and its coding and decoding standard, a stereo image processing software is developed with MFC. The processed stereo image pixels should have a strict correspondence with the display grating, which can satisfy the human visual fusion mechanism and enable the observer to obtain depth perception. (2) in order to realize the fast fusion processing of stereo images, This paper presents a pixel processing method based on matrix transformation, which is validated in software design. In the software design of video player, we use FFmpeg to decode the video and SDL library is responsible for displaying the image. The whole software is divided into three modules: file analysis module, decoding module, player display module. The file parsing module is used to analyze the file format and register the required decoding library, and the decoding module uses the FFmpeg decoding library to decode the video file into stream information. In order to reduce the difficulty of development, only TS stream decoding library is used in this subject. The player display module uses SDL-based media library to display the decoded video picture. (3) through the in-depth analysis of the Android platform system architecture, the Linux-based FFmpeg codec library can be transplanted to the Android platform theoretically and technically. The most important thing to transplant is to compile FFmpeg into so file. This step can be completed in Linux environment. This paper focuses on how to compile so link library file by using Android NDK in Ubuntu environment. To sum up, this paper mainly completes the display of static stereoscopic image on the naked stereoscopic display, and the study of the dynamic stereoscopic image playing on the naked stereoscopic display, and the research of transplanting stereo video player to Android platform.
【學(xué)位授予單位】:南昌大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類(lèi)號(hào)】:TP391.41

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

1 宋凡;智能小區(qū)裸眼3D門(mén)禁系統(tǒng)設(shè)計(jì)研究[D];南昌大學(xué);2015年

2 許鵬;智能門(mén)禁系統(tǒng)3D圖像傳感器設(shè)計(jì)研究[D];南昌大學(xué);2015年

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本文編號(hào):2129747

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