IEEE Trans Haptics. 2022 Jan-Mar;15(1):68-73. doi: 10.1109/TOH.2021.3138647. Epub 2022 Mar 18.
Tactile texture presentation on touch panels enhances their usability and realizes immersive user interfaces. This study develops a tactile texture rendering method for electrostatic friction displays. The method combines two rendering models for material textures compared with previous studies which focused on either of these two models. One of these models is a physical model that simulates low-frequency frictional signals depending on the exploratory finger velocities and contact loads. The other is an autoregression-based data-driven model for high-frequency textural friction. For user studies, we compared combining the two models with using only the physical model for the four types of materials. Although the effectiveness varied across the materials, the subjectively judged realism and identification of the materials were improved for the combined condition. The new method combining high-frequency textural information and low-frequency physical model-based friction is expected to provide realistic tactile textures for electrostatic surface tactile displays.
在触摸面板上呈现触觉纹理可以提高其可用性，并实现沉浸式用户界面。本研究开发了一种用于静电摩擦显示的触觉纹理渲染方法。与之前只关注这两个模型之一的研究相比，该方法结合了两种用于材料纹理的渲染模型。其中一个模型是一种物理模型，根据探测手指的速度和接触负载来模拟低频摩擦信号。另一个是基于自回归的数据驱动的高频纹理摩擦模型。在用户研究中，我们比较了将这两种模型与仅使用物理模型结合使用对于四种材料的效果。虽然效果因材料而异，但对于组合条件，材料的主观判断真实感和识别度得到了提高。这种结合高频纹理信息和低频基于物理模型的摩擦的新方法有望为静电表面触觉显示器提供逼真的触觉纹理。
