The appearance of fabric motion is suggested to affect the human perception of bending stiffness. This study presents a novel spatial augmented reality, or projection mapping, approach that can visually manipulate the perceived bending stiffness of a fabric. Particularly, we proposed a flow enhancement method that can change the apparent fabric motion by using a simple optical flow analysis technique rather than complex physical simulations for interactive applications. Through a psychophysical experiment, we investigated the relationship between the magnification factor of our flow enhancement and the perceived bending stiffness of a fabric. Furthermore, we constructed a prototype application system that allows users to control the stiffness of a fabric without changing the actual physical fabric. By evaluating the prototype, we confirmed that the proposed technique can manipulate the perceived stiffness of various materials (i.e., cotton, polyester, and mixed cotton and linen) at an average accuracy of 90.3 percent.

中文翻译：

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FleXeen：在空间增强现实中以视觉方式操纵感知到的织物弯曲刚度

建议织物运动的外观影响人类对弯曲刚度的感知。这项研究提出了一种新颖的空间增强现实或投影贴图方法，可以从视觉上操纵织物的感知弯曲刚度。特别是，我们提出了一种流增强方法，该方法可以通过使用简单的光流分析技术而不是用于交互应用的复杂物理模拟来更改外观的织物运动。通过心理物理实验，我们研究了流动增强的放大系数与织物的感知弯曲刚度之间的关系。此外，我们构建了一个原型应用系统，使用户可以控制织物的刚度而无需更改实际的物理织物。通过评估原型，