The tactile sensation of stroking soft fur, known for its comfort and emotional benefits, has numerous applications in virtual reality, animal-assisted therapy, and household products. Previous studies have primarily utilized actual fur to present a voluminous fur experience that poses challenges concerning versatility and flexibility. In this study, we develop a system that integrates a head-mounted display with an ultrasound haptic display to provide visual and haptic feedback. Measurements taken using an artificial skin sheet reveal directional differences in tactile and visual responses to voluminous fur. Based on observations and measurements, we propose interactive models that dynamically adjust to hand movements, simulating fur-stroking sensations. Our experiments demonstrate that the proposed model using visual and haptic modalities significantly enhances the realism of a fur-stroking experience. Our findings suggest that the interactive visuo-haptic model offers a promising fur-stroking experience in virtual reality, potentially enhancing the user experience in therapeutic, entertainment, and retail applications.

翻译：抚摸柔软毛皮所产生的触觉，以其舒适性和情感益处而闻名，在虚拟现实、动物辅助治疗和家居产品中具有广泛应用。先前研究主要利用真实毛皮来呈现蓬松毛皮体验，但在通用性和灵活性方面存在挑战。本研究开发了一种集成头戴式显示器与超声触觉显示器的系统，以提供视觉和触觉反馈。使用人工皮肤片进行的测量揭示了蓬松毛皮在触觉与视觉响应上的方向性差异。基于观察和测量结果，我们提出了能够动态适应手部运动的交互模型，以模拟毛皮抚摸的触感。实验表明，所提出的结合视觉与触觉模态的模型显著提升了毛皮抚摸体验的真实感。我们的研究结果表明，交互式视触觉模型为虚拟现实中的毛皮抚摸体验提供了有前景的解决方案，有望在治疗、娱乐和零售应用中提升用户体验。