手绘二维曲线自动生成三维模型研究  

Automatic Generation of 3D Model Based on Sketch

作　　者：刘晓平[1] 吴正[1] 李琳[1] 

机构地区：[1]合肥工业大学计算机与信息学院VCC研究室,安徽合肥230009

出　　处：《工程图学学报》2011年第3期17-22,共6页Journal of Engineering Graphics

基　　金：国家自然科学基金国际(地区)合作交流资助项目(60573174);特种显示技术教育部重点实验室开放课题基金

摘　　要：通过手绘创作三维模型是改变传统三维模型制作方式的新兴研究点;论文提出两种由手绘二维曲线自动产生三维模型的算法,分别进行了详细介绍和讨论:算法一基于重心原理拓展曲线,并在曲线簇上进行网格重构,但此方法仅限于椭圆拓扑的曲线;算法二利用离散方法寻找轴线,该方法能够生成更加多样化的模型并侧重于细节。通过算法实现效果的对比,验证了两种算法快速生成三维模型的有效性;最后展示了通过该文算法绘制的几个卡通模型,并对进一步生成模型动画进行了设想。Creating 3D model based on sketch is an emerging research that changes traditional modeling pattern.Two algorithms of automatic generation of 3D model based on 2D curve sketching are introduced and discussed in detail in this paper.The first one expands the curve based barycenter,then reconstructs a mesh from curve-cluster,which,however,is limited in application to only ellipse-like topology curves.The second one finds its axis using discrete method,so more diversified models focusing on details can be generated.The comparison of realization effects of the two algorithms shows that they are effective for fast generation of 3D.Finally,several cartoon models created by the algorithms are displayed,and generation of model animation are desired for further.

关 键 词：计算机图形学 手绘建模 网格化 卡通模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]