Evaluation of simplified 3D CAD data for conveying industrial assembly instructions via Augmented reality

Abhayadhathri Arige, T. Lavric, Marius Preda, T. Zaharia
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Abstract

Augmented Reality (AR) based training is gaining momentum in industrial sectors, particularly in assembly and maintenance. Generally, the media contents used to create AR assembly instructions include audio, video, images, text, signs, 3D data, and animations. Literature suggests that 3D CAD-based AR instructions spatially registered with the real-world environment are more effective and produce better training results. However, storing, processing, and rendering 3D data can be challenging even for state-of-the-art AR devices like HoloLens2, particularly in industrial usage. To overcome these concerns, heavy 3D models can be simplified to a certain extent with a minimal impact on the user experience, that is, the quality of visualization in AR. In the present paper, we evaluate the usability of a set of simplified 3D CAD models used to convey manual assembly information to novice operators. The experiment included 14 participants, six assembly operations, and two sets of 3D CAD models (i.e., originals and simplified) and was conducted in a laboratory setting. To simulate as much as possible a real-world assembly scenario, the components, and the original corresponding 3D CAD models were obtained from a real-world industrial setup. The present paper confirms that simplified 3D CAD models can replace the original 3D CAD models within AR applications without affecting the user experience with the help of subjective evaluations.
利用增强现实技术对工业装配指令传递的简化三维CAD数据进行评估
基于增强现实(AR)的培训在工业部门,特别是在装配和维护方面正在获得动力。通常,用于创建AR组装指令的媒体内容包括音频、视频、图像、文本、符号、3D数据和动画。文献表明,基于3D cad的AR指令在空间上与现实世界环境相匹配更有效,并产生更好的训练结果。然而,即使是像HoloLens2这样最先进的AR设备,特别是在工业应用中,存储、处理和渲染3D数据也可能具有挑战性。为了克服这些问题,重型3D模型可以在一定程度上简化,而对用户体验(即AR中的可视化质量)的影响最小。在本文中,我们评估了一组简化的3D CAD模型的可用性,这些模型用于向新手操作员传达手工装配信息。实验共有14名参与者,6次装配操作,两套3D CAD模型(即原模型和简化模型),在实验室环境下进行。为了尽可能模拟真实世界的装配场景,从真实世界的工业设置中获得了组件和原始相应的3D CAD模型。本文通过主观评价,证实了简化的3D CAD模型可以在不影响用户体验的情况下,在AR应用中取代原有的3D CAD模型。
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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