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XX 大學 畢業(yè)論文 I 摘 要 為使視景仿真系統(tǒng)更加自然、逼真,立體顯示技術(shù)和三維建模技術(shù)是其不可缺少的關(guān)鍵技術(shù),本文就此展開了深入、廣泛的研究。 近幾年來 , 視景仿真技術(shù)的廣泛應用前景引起了國內(nèi)外越來越多學著的興趣和重視,而且國外的一些機構(gòu)在這方面的研究也已經(jīng)取得了一些很重要的成果。立體顯示技術(shù)是視景仿真的關(guān)鍵技術(shù)之一。本文先介紹了視景仿真技術(shù)的一些知識,然后又介紹了視景生成及三維建模技術(shù),然后分別分析了立體顯示硬件和軟件技術(shù),介紹了計算立體顯示的三種算法:透視投影旋轉(zhuǎn)法、平行投影法和雙中心投影法,并分析它們的優(yōu)缺點,由此決 定使用雙中心投影法實現(xiàn)本課題的立體顯示,接著給出基于立體眼鏡和頭盔顯示器的立體顯示系統(tǒng)模型,最后使用基于 VC++ 的 OpenGL 繪制立體圖形,對左右畫面分別采用紅色和綠色來顯示,在左右眼處分別用紅綠鏡片對畫面進行選擇,從而實現(xiàn)了視景仿真技術(shù)中的立體顯示。 關(guān)鍵詞 : 視景仿真 , 立體顯示 , 三維建模 , 視景生成算法 , 視差 中北大學分校畢業(yè)論文 II Visual simulation technology of stereoscopic display technology research Abstract To make visual simulation system is more natural, vivid, stereoscopic display technology and 3d modeling technology is the indispensable key technology, this paper further, extensive research. In recent years, the visual simulation technology of wide application prospect was caused by more and more scholars at home and abroad, and the interest of some institutions abroad and in the research of this aspect has also made some important results. Threedimensional visual simulation technology is one of the key technologies. This paper first introduces the visual simulation technology of some knowledge, then introduces the formation and 3d visual modeling technology are analyzed, and then the hardware and software technology of stereoscopic display, introduces the calculating of the three kinds of stereoscopic display rotating perspective projection algorithm, and double parallel projective, center, and analyzes the projection method, which decides the advantages and disadvantages of using double center projection method to achieve the topic of stereoscopic display. Then based on the threedimensional glasses and helmet is stereoscopic display monitor system model. Finally based on vc + + OpenGL39。s use of threedimensional graph drawing pictures were used, or red and green, around the eye with red, green, and choose to lens, thus realizing the visual simulation technology of stereoscopic display. Key Words: Visual simulation, Stereo display, 3d modeling, Scene generation algorithm, parallax XX 大學 畢業(yè)論文 III 目 錄 摘 要 ................................................................................................................................. I Abstract................................................................................................................................... II 1 緒論 .................................................................................................................................. 1 視景仿真技術(shù)的介紹 ............................................................................................ 1 視景仿真的主要特性 ............................................................................................ 1 關(guān)鍵技術(shù) ................................................................................................................ 2 視景仿真與虛擬現(xiàn)實 (VR)的關(guān)系 ........................................................................ 4 課題背景及意義 ..................................................................................................... 5 課題研究內(nèi)容 ......................................................................................................... 6 2 視景生成及三維建模技術(shù) .............................................................................................. 7 視景生成機理 ......................................................................................................... 7 生成視景的工作 ......................................................................................... 7 視景生成過程 ............................................................................................. 8 視景三維建模技術(shù) ................................................................................................ 9 幾何建模 ................................................................................................... 10 運動建模 ................................................................................................... 10 物理建模 .................................................................................................. 10 對象行為建模 ........................................................................................... 11 模型分割 ................................................................................................... 11 支持視景生成的語言 — OpenGL ........................................................................ 11 功能 ........................................................................................................... 11 坐標變換 ................................................................................................... 12 3 立體顯示技術(shù) ............................................................................................................... 14 立體視覺原理及視覺模型 ................................................................................... 14 眼睛的立體視覺 ....................................................................................... 14 3. 雙目視差 —— 三維立體成像的基礎(chǔ) ................................................... 17 3. 立體視覺模型的提出 ............................................................................. 18 立體顯示硬件技術(shù) ............................................................................................... 19 . 1 自動立體顯示技術(shù) ................................................................................. 20 雙目立體顯示技術(shù) ................................................................................... 20 多模式立 體成像技術(shù) (MRSI) ................................................................... 21 立體顯示軟件算法 ............................................................................................... 22 中北大學分校畢業(yè)論文 IV . 1 帶透視投影的旋轉(zhuǎn)法 ............................................................................. 22 平行投影法