Sound Pressure Field Reconstruction for Airborne Ultrasound Tactile Display Encountering Obstacles

IF 2.4 3区计算机科学 Q2 COMPUTER SCIENCE, CYBERNETICS

IEEE Transactions on Haptics Pub Date : 2023-08-30 DOI:10.1109/TOH.2023.3309975

Jianyu Chen;Shun Suzuki;Tao Morisaki;Yutaro Toide;Masahiro Fujiwara;Yasutoshi Makino;Hiroyuki Shinoda

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引用次数: 0

Abstract

Airborne ultrasound tactile display (AUTD) is used to provide non-contact tactile sensations with specific foci sound fields through the optimization of transducer phases. However, most existing optimization approaches are not directly applicable in case of an inhomogeneous medium, such as in the presence of obstacles between the AUTD and objective sound field. Certain methods can perform optimizations by considering the sound-scattering surfaces of the obstacles to compute the transmission matrix, which requires several complex measurements. This study proposed two methods to reconstruct the sound field under an inhomogeneous medium, wherein the need to calculate the impact of the obstacles was eliminated. The two methods are Bayesian optimization and greedy algorithm with brute-force search. Further, the process of the foci field generation was assumed as a black box. The proposed methods require only the pressure intensity at the control point generated by the input phases, discarding the need for transmission matrix in the presence of obstacles. Moreover, these methods offer the advantage of optimization of the phases in the presence of obstacles. This study explains the working of proposed methods in different forms of foci fields encountering obstacles.

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机载超声触觉显示器遇到障碍物时的声压场重构。

机载超声触觉显示器（AUTD）是通过优化换能器相位，利用特定病灶声场提供非接触式触觉。然而，现有的大多数优化方法并不能直接适用于不均匀介质的情况，例如 AUTD 和目标声场之间存在障碍物的情况。某些方法可以通过考虑障碍物的声音散射面来计算传输矩阵，从而进行优化，但这需要多次复杂的测量。本研究提出了两种方法来重建非均质介质下的声场，其中无需计算障碍物的影响。这两种方法分别是贝叶斯优化法和带有暴力搜索的贪婪算法。此外，病灶场的生成过程被假定为一个黑箱。所提出的方法只需要输入相位产生的控制点压力强度，无需在存在障碍物的情况下使用传输矩阵。此外，这些方法还具有在存在障碍物的情况下优化相位的优势。本研究解释了所提议的方法在遇到障碍物的不同形式病灶场中的工作原理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Haptics COMPUTER SCIENCE, CYBERNETICS-

CiteScore

5.90

自引率

13.80%

发文量

109

审稿时长

>12 weeks

期刊介绍： IEEE Transactions on Haptics (ToH) is a scholarly archival journal that addresses the science, technology, and applications associated with information acquisition and object manipulation through touch. Haptic interactions relevant to this journal include all aspects of manual exploration and manipulation of objects by humans, machines and interactions between the two, performed in real, virtual, teleoperated or networked environments. Research areas of relevance to this publication include, but are not limited to, the following topics: Human haptic and multi-sensory perception and action, Aspects of motor control that explicitly pertain to human haptics, Haptic interactions via passive or active tools and machines, Devices that sense, enable, or create haptic interactions locally or at a distance, Haptic rendering and its association with graphic and auditory rendering in virtual reality, Algorithms, controls, and dynamics of haptic devices, users, and interactions between the two, Human-machine performance and safety with haptic feedback, Haptics in the context of human-computer interactions, Systems and networks using haptic devices and interactions, including multi-modal feedback, Application of the above, for example in areas such as education, rehabilitation, medicine, computer-aided design, skills training, computer games, driver controls, simulation, and visualization.