Recent standardization efforts for Tactile Internet (TI) and haptic codecs have paved the route for delivering tactile experiences in synchrony with audio and visual interaction components. Since humans are the ultimate consumers of tactile interactions, it is utmost important to develop objective quality assessment measures that are in close agreements with human perception. In this article, we present the results of a large-scale subjective study of a recently proposed objective quality assessment approach for vibrotactile signals called ST-SIM (Spectral Temporal SIMilarity). ST-SIM encompasses two components: perceptual spectral and temporal similarity measures. Two subjective experiments were conducted to validate ST-SIM, and elicited subjective ratings are used to create a VibroTactile Quality Assessment (VTQA) database. The VTQA database together with ST-SIM provide viable means to the development of vibrotactile compression and transmission applications. Our experimental results show that the ST-SIM highly correlates with human opinions in both experiments and significantly outperforms commonly used measures. The VTQA database is made publicly available at https://www.raniahassen.com/RESEARCH/.

中文翻译：

---

用于振动触觉质量评估的光谱时间相似性 (ST-SIM) 测量的主观评估

最近针对触觉互联网 (TI) 和触觉编解码器的标准化工作为提供与音频和视觉交互组件同步的触觉体验铺平了道路。由于人类是触觉交互的最终消费者，因此制定与人类感知密切相关的客观质量评估措施至关重要。在本文中，我们展示了对最近提出的振动触觉信号客观质量评估方法 ST-SIM（光谱时间相似性）的大规模主观研究的结果。ST-SIM 包含两个组件：感知光谱和时间相似性度量。进行了两个主观实验来验证 ST-SIM，并使用引发的主观评级来创建 VibroTactile 质量评估 (VTQA) 数据库。VTQA 数据库与 ST-SIM 一起为开发振动触觉压缩和传输应用程序提供了可行的方法。我们的实验结果表明，ST-SIM 在两个实验中都与人类的意见高度相关，并且明显优于常用的测量方法。VTQA 数据库在 https://www.raniahassen.com/RESEARCH/ 上公开提供。