A Novel Approach for Pseudo-haptic Textures Based on Curvature Information
A Novel Approach for Pseudo-haptic Textures Based on Curvature Information
复制标题
一种基于曲率信息的伪触觉纹理的新方法
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Lécuyer
中科院分区：
文献类型：
--
作者：
F. Argelaguet;David Antonio Gómez Jáuregui;M. Marchal;A. Lécuyer
伪触觉纹理允许通过根据纹理中编码的深度信息调整鼠标指针的速度来在没有触觉设备的情况下光学地诱导纹理中的起伏。在这项工作中，我们提出了一种新的方法，使用曲率信息，而不是依赖于深度信息。纹理的曲率被编码在法线贴图中，法线贴图允许根据鼠标的位置和方向计算曲率和局部方向变化。进行用户评估以比较基于曲率的方法与基于深度图的原始基于深度的方法的光学诱导的触觉反馈。结果表明，用户除了能够使用基于曲率的方法有效地识别模拟的凹凸和孔洞外，还能够区分频率和幅度较低的形状。
Pseudo-haptic textures allow to optically-induce relief in textures without a haptic device by adjusting the speed of the mouse pointer according to the depth information encoded in the texture. In this work, we present a novel approach for using curvature information instead of relying on depth information. The curvature of the texture is encoded in a normal map which allows the computation of the curvature and local changes of orientation, according to the mouse position and direction. A user evaluation was conducted to compare the optically-induced haptic feedback of the curvature-based approach versus the original depth-based approach based on depth maps. Results showed that users, in addition to being able to efficiently recognize simulated bumps and holes with the curvature-based approach, were also able to discriminate shapes with lower frequency and amplitude.