Human figures have been animated using a variety of geometric models including stick figures, polygonal models, and NURBS-based models with muscles, flexible skin, or clothing. This paper reports on experimental results indicating that a viewer's perception of motion characteristics is affected by the geometric model used for rendering. Subjects were shown a series of paired motion sequences and asked if the two motions in each pair were the same or different. The motion sequences in each pair were rendered using the same geometric model. For the three types of motion variation tested, sensitivity scores indicate that subjects were better able to observe changes with the polygonal model than they were with the stick figure model.

翻译：人体动画采用多种几何模型实现，包括线条模型、多边形模型以及基于NURBS的肌肉、柔性皮肤或衣物模型。本文报告的实验结果表明，观察者对运动特征的感知会受到渲染所用几何模型的影响。实验向受试者展示一系列成对运动序列，并要求判断每对中的两个运动是否相同。每对运动序列使用相同的几何模型进行渲染。针对三种测试的运动变化类型，敏感度评分显示，与线条模型相比，受试者在使用多边形模型时能够更有效地观察运动变化。