以動感強化器操作之三維模型形變系統

三維模型的編輯與形變在電腦動畫和模型建造上相當的重要，因其可運用在電影和電腦遊戲的角色編輯上。傳統上，調整模型形變的過程需要投入大量的人力與時間。因此，在這篇論文中我們提出一個系統由兩個方面來加速這個過程。第一，實做一個可以即時操作且盡量維持模型體積不變的形變演算法; 第二，提出新一套用Wii 動感強化器作為輔助的使用者介面。在我們的使用者測試中, 透過簡化的三項實驗, 發現此新型介面確實能幫助使用者縮短達10%至23%工作完成所需之時間。

關鍵字

即時模型形變；人機介面； Wii 動感強化器；基於形變之動畫

並列摘要

Mesh editing and deformation are critical in computer animation, such as in themotion of virtual characters in films and games. It needs lots of human resources to tweak the mesh to make the deformation look natural, and is often referred as “rigging”in animation industry. We propose a system that provides high level constraints to simplify complicated 3D deformation operations, and provide a novel user interfaceusing Wii Remote and MotionPlus to make the three dimensional control more intuitive. We find that our user interfaces can reduce the task completion time from 10% to 23%, according to three simplified experiments done by 10 subjects to deform the models in our user study.

並列關鍵字

mesh deformation ； user interfaces ； Wii-MotionPlus ； animation

參考文獻

[1] D Zorin, P Schroder, W Sweldens, “Interactive multiresolution mesh editing”, Proceedings of SIGGRAPH, 1997 – Citeseer

[2] Shi, Xiaohan and Zhou, Kun and Tong, Yiying and Desbrun, Mathieu and Bao, Hujun and Guo, Mesh puppetry: cascading optimization of mesh deformation with inverse kinematics

[5] M Alexa , Differential coordinates for local mesh morphing and deformation, The Visual Computer, 2003 – Springer

[7] levmar : Levenberg-Marquardt nonlinear least squares algorithms in C/C++, http://www.ics.forth.gr/~lourakis/levmar/

[8] GSL - GNU Scientific Library, http://www.gnu.org/software/gsl/

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以動感強化器操作之三維模型形變系統

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