臺灣博碩士論文加值系統

近年來三維立體顯示技術(Three-Dimensional Stereoscopic Display Technology)已經成為重要的技術，而裸眼式立體顯示技術(Auto-stereoscopic Display Technology)具備極佳的便利性，勢必將成為未來主流的發展重點。本篇論文以環狀掃描的二維發光二極體陣列(Light emitting diode arrays)顯示技術為基礎。為了達到消除觀察死角的目的，本系統提出一套由二維發光二極體陣列所分離之非平面發光二極體陣列(Nonplanar light emitting diode arrays)的顯示方式。透過在適當的速度環形旋轉，達到呈現三維立體影像物件且不會產生觀察死角。本篇論文提出一套顯示三維物件的演算法，藉由偵測由頂點所構成的三角面與各個角度顯示平面之掃描交點，並將交點對應顯示在實際空間中。利用兩個層級的指令管線化，將儲存在暫存器中的交點資料輸出並控制二維發光二極體(Light emitting diode)的點亮狀態，並在同時間內讀取儲存在記憶體中的下一筆顯示平面與頂點所構成之三角面的交點資料並暫存在暫存器。本篇論文所提出的演算法及相關硬體機構，可以證明並實現在實際空間中呈現三維物件之技術，並且達成無觀看視角的限制。

The three-dimensional stereoscopic display technology has become an important display technique in recent years. Particularly, the auto-stereoscopic display technology is leading the trend because it is user-friendly and convenient for user to view 3D imageries. The research of this thesis is based on the circular sweeping of two-dimensional LED arrays. For the purpose of eliminating blind spots of viewing, the proposed display technology uses the nonplanar LED arrays which are constructed by a number of linear LED arrays and arranged in a nonplanar manner. When rotating at an adequate speed, the effect of three-dimensional imagery can be obtained without blind spots of observation. The proposed algorithm can detect intersections between sweeping planes and triangular surfaces that constitute the 3D object to be displayed, and will locate the intersection points in three-dimensional physical space. Through the pipeline of two stages, the data of intersection points latched in the register will be outputted to control the state of LEDs, while the data of intersection points next to the current sweeping plane and triangular surfaces will be accessed from memories and latched in the register in the same time period. The proposed algorithm and the associated mechanism are realized and proved to be able to display three-dimensional objects in real space without blind spots.

誌謝 I
摘要 II
Abstract III
目錄 V
圖目錄 VIII
表目錄 X
第一章 緒論 1
1.1前言 1
1.2研究動機 2
1.3論文架構 3
第二章 研究方法與設計原理 4
2.1研究方法 4
2.2設計原理 5
第三章 硬體系統 6
3.1硬體系統架構 6
3.1.1複雜可程式邏輯裝置(Complex Programmable Logic Device) 7
3.1.1.1 MAX II系列EPM1270T144C5N晶片 8
3.1.1.2 MAX7000系列EPM7128SLC84-15N晶片 9
3.1.2非平面發光二極體陣列(Nonplanar Light Emitting Diode Arrays) 10
3.1.3觸發訊號開關 11
3.1.4電刷集電環 11
3.1.5旋轉平台 13
3.1.6燒錄檔案格式Memory Initialization File 13
3.1.7 Altera Cyclone III系列EP3C16F484C6N開發板 15
第四章 軟體設計 16
4.1軟體介紹 16
4.1.1 QuartusII軟體 16
4.1.2 Autodesk 3DS Max 18
4.1.2.1 3D Studio(3DS) 檔案格式 19
4.2軟體設計原理 26
4.2.1三維物件座標轉換 27
4.2.2演算法推導 28
4.2.3資料平移 31
4.3驅動電路架構與模擬 34
4.3.1驅動電路 34
4.3.2 Twin-Latch電路 36
4.3.3 Divider_720電路 40
第五章 實驗結果 42
5.1系統硬體架構展示 42
5.2系統成果展示 43
5.3實驗結果分析 44
第六章 結論與未來展望 45
6.1結論 45
6.2未來展望 45
參考文獻 46

[1]Hsieh-Ta Liu, “A VOLUMETRICTHREE-DIMENSIONAL DISPLAY SYSTEM BASED ON CIRCULAR SWEEPING OF TWO-DIMENSIONAL LED ARRAYS”, M.S. thesis, Graduate Institute of Communication Engineering, Tatung University, September 2011.
[2]Min-Yu Huang, “A COLOR DISPLAY DEVICE BASED ON CIRCULAR SCANNING OF LINEAR LED ARRAYS”, M.S. thesis, Graduate Institute of Communication Engineering, Tatung University, September 2010.
[3]Matthew Gately, Yan Zhai, Mark Yeary, Erik Petrich, and Lina Sawalha, “A THREE-DIMENSIONAL SWEPT VOLUME DISPLAY BASED ON LED ARRAYS”, Display Technology, Journal, pp.503-514, September 2011.
[4]Lina Sawalha, Monte P. Tull, Matthew B. Gately, James J. Sluss, Jr., Mark Yeary, and Ronald D. Barnes, “A LARGE 3D SWEPT-VOLUME VIDEO DISPLAY”, Display Technology, Journal, pp.256-268, May 2012.
[5]DE0 Development and Education Board, Terasic Technologies Inc.
[6]Martin van Velsen and Robin Fercoq, “3D-Studio File Format,” Internet: http://www.martinreddy.net/gfx/3d/3DS.spec, January1997.
[7]J. Fajans, "THREE-DIMENSIONAL DISPLAY", vol. 199, Advances in Display Technology, Proceedings of SPIE, 1979, pp. 23-28.
[8]廖裕評、陸瑞強, “系統晶片設計：使用QuartusⅡ（附系統範例光碟）（第四版）”, 全華圖書股份有限公司.