本文介紹了一種用3D打印機(jī)打印圖像的方法,該方法可以讓用戶獲得任意一張圖片雙色的立體模型。我們將二值圖轉(zhuǎn)換成3維模型,導(dǎo)入到3D打印機(jī)的軟件中,生成可被打印機(jī)識別的工作指令,依照指令,打印機(jī)便能自動制造出模型。我們首先利用非真實(shí)感圖像渲染技術(shù)將輸入圖像轉(zhuǎn)換成黑白色調(diào)的二值圖,接著用線刻畫方法提取圖像特征并且將其與原始圖像的黑白色塊結(jié)合,從而產(chǎn)生整潔的且邊界光滑的大片黑白色塊。然后將上述二值圖像轉(zhuǎn)換成適合3D打印的3維模型,這一步可看作將圖像的黑色區(qū)域提取出來并將其轉(zhuǎn)換成3維模型,也就是說,我們只對黑色塊進(jìn)行Delaunay三角化,所獲得的模型只包含二值圖像的黑色部分,而白色部分是空的。實(shí)際上,黑色部分已經(jīng)包含了圖像的有用信息,包括其特征,結(jié)構(gòu)和形狀。最后,我們用不同顏色的材料打印上述黑色部分和承載該色塊的背景區(qū)域,在打印成品中,我們可以透過黑色塊間的空洞看到背景區(qū)域的顏色。至此,我們得到二值圖像的3D打印結(jié)果,二值圖中的黑白色調(diào)部分在成品中均有所體現(xiàn)。本文的貢獻(xiàn)是提出了一種將二值圖的黑色區(qū)域轉(zhuǎn)換成適用于3D打印的多邊形的啟發(fā)式算法。這里,圖像的二值化算法是另一篇文章的工作,雖然它并非本...

【文章頁數(shù)】：47 頁

【學(xué)位級別】：碩士

【文章目錄】：
摘要
Abstract
Acknowledgments
Chapter 1 Introduction
    1.1 Overview
    1.2 Contribution
    1.3 Structure of the thesis
Chapter 2 Related works
    2.1 Image Binarization
    2.2 3D printing
    2.3 Image 3D printing
Chapter 3 Image binarization
    3.1 Expectations of the method
    3.2 Artistie minimal rendering with lines and blocks
        3.2.1 Coherent line drawing
        3.2.2 Tonal block extraction
    3.3 Intermediate results:binarization
Chapter 4 Polygonal conversion
    4.1 Need for polygonal conversion and software
    4.2 Delaunay triangulation
        4.2.1 Definitions and theorems
        4.2.2 Link with Voronoi diagrams
        4.2.3 Flipping algorithm
        4.2.4 Construction of Delaunay triangulation
    4.3 Adapted triangulation
        4.3.1 Overall triangulation
        4.3.2 White region's triangles suppression
        4.3.3 Pixel selection to reduce roughness
        4.3.4 Intermediate results: adapted triangulation
    4.4 Final model preparation
Chapter 5 Results
    5.1 Printed images
    5.2 More results, comparison with other binarization framework
Chapter 6 Conclusion and future works
    6.1 Conclusion
    6.2 Future works
References



本文編號：3842827