3D virtual human rapid modeling method based on top-down modeling mechanism
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摘要: 为满足虚拟现实领域对不同角色三维虚拟人大量定制与快速建模的需要，系统性梳理虚拟人建模技术的研究现状及不足，提出一种基于自顶向下（Top-down）建模机制的三维虚拟人快速建模方法。在顶层实现虚拟人模型层次结构框架设计的基础上，逐级向下实现虚拟人模块化表达与各模块控制参变量设计，建立虚拟人各模块的接口与映射约束关系，完成尺寸与纹理参变量的定义，并形成支持虚拟人Top-down快速建模实践操作的标准化流程。最后，以中国籍船长角色的定制建模为例，进行Top-down建模机制下的虚拟人快速建模应用验证。由建模过程的能效性以及建模结果的视觉效果分析可知，基于Top-down机制的三维虚拟人快速建模方法及标准化流程高效、可行，可为三维虚拟人几何建模与纹理建模的实现提供新的建模思路与理念。Abstract: Aiming to satisfy the vast custom-made character demand of 3D virtual human and the rapid modeling in the field of 3D virtual reality, a new virtual human top-down rapid modeling method is put for-ward in this paper based on the systematic analysis of the current situation and shortage of the virtual hu-man modeling technology. After the top-level realization of virtual human hierarchical structure frame de-sign, modular expression of the virtual human and parameter design for each module is achieved gradu-al-level downwards. While the relationship of connectors and mapping restraints among different modules is established, the definition of the size and texture parameter is also completed. Standardized process is meanwhile produced to support and adapt the virtual human top-down rapid modeling practice operation. Finally, the modeling application, which takes a Chinese captain character as an example, is carried out to validate the virtual human rapid modeling method based on top-down modeling mechanism. The result demonstrates high modelling efficiency and provides one new concept for 3D virtual human geometric mod-eling and texture modeling.
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Key words:
- virtual human /
- top-down /
- rapid modeling method /
- modularization /
- parameterization
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图 2 虚拟人模块划分及模块关系
Figure 2. Partition of virtual human module and relationship of each module
图 3 虚拟人各模块参变量及其关系图
Figure 3. Parameter variable of each virtual human module and its relationships
图 4 标准化的虚拟人Top-down快速建模流程
Figure 4. Standardized top-down rapid modeling process of virtual human
图 5 虚拟人躯体模块化快速组合建模
Figure 5. The process of rapid modeling of virtual human body with modularity method
图 6 虚拟人服饰模块化快速组合建模
Figure 6. The process of rapid modeling of virtual human dress with modularity method
图 7 虚拟人模型头部模块参数化设计
Figure 7. The process of parameterization design of virtual human head model adjusting size and texture
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[1] BAEK S Y, LEE K. Parametric human body shape modeling framework for human-centered product de-sign[J]. Computer-Aided Design, 2012, 44(1):56-57. doi: 10.1016/j.cad.2010.12.006 [2] 夏时洪, 王兆其.虚拟人合成研究进展[J].中国科学F辑(信息科学), 2009, 39(5):483-498. doi: 10.1360/zf2009-39-5-483XIA S H, WANG Z Q. The research development of virtual human combination[J]. Science in China (Se-ries F:Information Sciences), 2009, 39(5):483-498(in Chinese). doi: 10.1360/zf2009-39-5-483 [3] 费璟昊, 樊建平, 周树民.虚拟人皮肤建模技术研究概况与展望[J].计算机辅助设计与图形学学报, 2008, 20(3):291-297.FEI J H, FAN J P, ZHOU S M. Development and pros-pect of virtual human skin modeling[J]. Journal of Computer-Aided Design & Computer Graphics, 2008, 20(3):291-297(in Chinese). [4] 周晓晶, 赵正旭.基于照片的三维虚拟人重建技术[J].东南大学学报(自然科学版), 2008, 38(4):632-636. http://www.cqvip.com/qk/90464X/200804/27858110.htmlZHOU X J, ZHAO Z X. Reconstructing 3D virtual hu-mans from photo-realistic images[J]. Journal of South-east University (Natural Science Edition), 2008, 38(4):632-636(in Chinese). http://www.cqvip.com/qk/90464X/200804/27858110.html [5] 崔树芹, 余胜生, 胡新荣. 3D试衣系统中个性化人体建模方法[J].华中科技大学学报(自然科学版), 2009, 37(10):25-28. http://www.cnki.com.cn/Article/CJFDTOTAL-HZLG200910009.htmCUI S Q, YU S S, HU X R. The method of individual-ized human body modeling for 3D-virtual trying on sys-tems[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2009, 37(10):25-28(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HZLG200910009.htm [6] 王小波, 李英琳.一种三维参数化虚拟人台建模的新方法[J].天津工业大学学报, 2013, 32(5):15-20. http://www.cqvip.com/QK/90189A/201305/47551347.htmlWANG X B, LI Y L. A new modeling method of 3D pa-rameterized mannequin[J]. Journal of Tianjin Polytech-nic University, 2013, 32(5):15-20(in Chinese). http://www.cqvip.com/QK/90189A/201305/47551347.html [7] 张满囤, 王丽, 杨璐, 等.基于RBF算法的快速三维人体建模[J].河北工业大学学报, 2013, 42(2):24-27. http://www.cnki.com.cn/Article/CJFDTOTAL-HBGB201302007.htmZHANG M T, WANG L, YANG L, et al. Fast 3D hu-man modeling based on radial basis function algorithm[J]. Journal of Hebei University of Technology, 2013, 42(2):24-27(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HBGB201302007.htm [8] 黄金锋, 陶伟, 赵罡, 等.虚拟现实技术在人机工程中的应用要求标准研究[J].中国舰船研究, 2008, 3(6):49-53, 60. http://www.ship-research.com/CN/abstract/abstract618.shtmlHUANG J F, TAO W, ZHAO G, et al. Standard for applications of virtual reality in man-machine engi-neering[J]. Chinese Journal of Ship Research, 2008, 3(6):49-53, 60(in Chinese). http://www.ship-research.com/CN/abstract/abstract618.shtml [9] 王书亭, 吴义忠.多领域仿真平台下自顶向下的建模机制[J].计算机辅助设计与图形学学报, 2010, 22(7):1223-1229. http://www.cqvip.com/QK/97390X/201007/34471607.htmlWANG S T, WU Y Z. A top-down modeling mecha-nism in multi-domain modeling and simulation plat-form[J]. Journal of Computer-Aided Design & Com-puter Graphics, 2010, 22(7):1223-1229(in Chinese). http://www.cqvip.com/QK/97390X/201007/34471607.html [10] 潘志毅, 黄翔, 李迎光.自顶向下的跨层次装配建模方法与应用[J].电气技术与自动化, 2005, 34(1):119-122.PAN Z Y, HUANG X, LI Y G. A design for top-down assembly inter-level modeling and applica-tion[J]. Machine Building & Automation, 2005, 34(1):119-122(in Chinese). [11] 毛天露, 王兆其.个性化三维人体模型快速建模方法[J].计算机辅助设计与图形学学报, 2005, 17(10):2191-2195. http://www.cqvip.com/qk/97390X/200510/20275367.htmlMAO T L, WANG Z Q. An efficient method for cus-tomizing individual 3D virtual human body[J]. Jour-nal of Computer-Aided Design & Computer Graph-ics, 2005, 17(10):2191-2195(in Chinese). http://www.cqvip.com/qk/97390X/200510/20275367.html [12] 初建杰, 余隋怀, 王聪, 等.基于概念色彩方案库的自顶向下色彩设计模式[J].计算机工程与应用, 2008, 44(5):112-114.CHU J J, YU S H, WANG C, et al. Color design mode supporting top-down based on concept color scheme database[J]. Computer Engineering and Ap-plications, 2008, 44(5):112-114(in Chinese). [13] 朱江.中文版3ds Max 2014技术大全[M].北京:人民邮电出版社, 2014:120-125. -
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