IEEE Trans Vis Comput Graph. 2020 Feb;26(2):1433-1439. doi: 10.1109/TVCG.2018.2871044. Epub 2018 Sep 19.
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.
织物运动的外观被认为会影响人类对弯曲刚度的感知。本研究提出了一种新颖的空间增强现实或投影映射方法，可以直观地改变织物的弯曲刚度感知。具体来说，我们提出了一种流动增强方法，该方法可以通过使用简单的光流分析技术而不是复杂的物理模拟来改变织物的表观运动，从而适用于交互式应用。通过心理物理实验，我们研究了我们的流动增强的放大因子与织物弯曲刚度感知之间的关系。此外，我们构建了一个原型应用系统，允许用户在不改变实际物理织物的情况下控制织物的刚度。通过评估原型，我们证实了该技术可以以平均 90.3%的准确度操纵各种材料（即棉、聚酯和棉麻混纺）的感知刚度。
