Dress Simulation of Human Body Model by using Computer Graphics

我们已经开发了一个真实感渲染系统的穿着人体。该系统包括以下几个部分：（1）人体测量，（2）人体模型的光滑表面绘制，（3）人体模型的自由变形，（4）服装模拟。对于（2），我们开发了一个从三维网格到mata-ball数据（由等值面定义）的转换器，提出了两种方法来创建光滑表面和精确的人体。一种是交互式方法。另一种是利用降陡法进行优化的方法。对于（3），我们提出了一种扩展方法FFD（自由形式变形）理论，以便根据测量数据对人体模型进行变形。对于（4），通过证明我们的系统的有用性，我们将我们的方法应用于由元球建模的人体的服装模拟。我们在日本图像电子研究所杂志和IPS Japan等期刊上发表了我们的结果。

We have developed a realistic rendering system of dressed human bodies. The system includes the following components ;(1)measurement of human body, (2)rendering system human body model with smooth surfaces, (3)free-form deformation of human body model, (4)dress simulation.For(1), we have made polygon mesh models for human bodies based on measured range-data. For(2), we have developed a converter from polygon-mesh to mata-ball data (defined by iso-surface) ; two methods are proposed for creating smooth surfaces and precise human figures. One is an interactive method. The other is an optimization method by using Decent Steep method. For(3), we have proposed an expanded method FFD (Free-Form Deformation) theory in order to deform the human body model based on the measured data. For(4), by demonstrating the usefulness of our system, we applied our method to a dress simulation for a human body modeled by meta-balls.We have presented our results on journals such as The journal of the institute of image electronics of Japan and IPS Japan.