Cabaret Pierre-Antoine, Howard Thomas, Gicquel Guillaume, Pacchierotti Claudio, Babel Marie, Marchal Maud
IEEE Trans Vis Comput Graph. 2024 Aug;30(8):4767-4779. doi: 10.1109/TVCG.2023.3279398. Epub 2024 Jul 1.
Rich, informative and realistic haptic feedback is key to enhancing Virtual Reality (VR) manipulation. Tangible objects provide convincing grasping and manipulation interactions with haptic feedback of e.g., shape, mass and texture properties. But these properties are static, and cannot respond to interactions in the virtual environment. On the other hand, vibrotactile feedback provides the opportunity for delivering dynamic cues rendering many different contact properties, such as impacts, object vibrations or textures. Handheld objects or controllers in VR are usually restricted to vibrating in a monolithic fashion. In this article, we investigate how spatialiazing vibrotactile cues within handheld tangibles could enable a wider range of sensations and interactions. We conduct a set of perception studies, investigating the extent to which spatialization of vibrotactile feedback within tangible objects is possible as well as the benefits of proposed rendering schemes leveraging multiple actuators in VR. Results show that vibrotactile cues from localized actuators can be discriminated and are beneficial for certain rendering schemes.
丰富、信息量大且逼真的触觉反馈是增强虚拟现实（VR）操作的关键。实体对象通过提供诸如形状、质量和纹理属性等触觉反馈，实现令人信服的抓握和操作交互。但这些属性是静态的，无法对虚拟环境中的交互做出响应。另一方面，振动触觉反馈为传递动态线索提供了机会，可呈现许多不同的接触属性，如碰撞、物体振动或纹理。VR中的手持对象或控制器通常只能以整体方式振动。在本文中，我们研究了在手持实体对象内对振动触觉线索进行空间定位如何能够实现更广泛的感觉和交互。我们进行了一系列感知研究，调查在实体对象内对振动触觉反馈进行空间定位的可能性，以及利用VR中的多个致动器的拟议渲染方案的好处。结果表明，来自局部致动器的振动触觉线索是可以区分的，并且对某些渲染方案有益。
