Tracking Methods in Augmented Reality – Explore the Usage of Marker-Based Tracking

Ashwini K B, Preethi N. Patil, S. R
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引用次数: 2

Abstract

The advancement in technology has created new challenges using different techniques. Augmented Reality (AR) is the amalgamation of a true object viewed by a user which is augmented by the virtual scene generated by a computer with additional information. In AR, the system augments with the help of a mechanism to combine virtual and real-world but the user maintains a sense of presence in real-world. It is one of the emerging technologies that has attracted researchers in the field of enhancing information for education and training, product visualization, and virtual try in the field of marketing, finding a way for tourism and many more applications to a very great extent. A lot of factors influence an effective AR experience. A discussion is carried on about the important factors like Graphical rendering, Tracking, Calibration, display that contributes to an effective AR experience depending on the AR application. This article highlights different tracking techniques that can be classified as Sensor-based and Vision-based tracking. Sensor-based tracking can additionally be divided into other tracking such as Optical, Magnetic, Acoustic, and Inertial. Vision-based tracking is further categorized into Marker-based and Markerless Tracking. The usage of the tracking technique depends on the AR application. This paper projects the advantages and disadvantages of each of these tracking techniques which are listed out. Finally, the article deals with the requirements of marker based application and its usage in detail.
增强现实中的跟踪方法-探索基于标记的跟踪的使用
技术的进步给使用不同的技术带来了新的挑战。增强现实(AR)是将用户看到的真实物体与计算机生成的带有附加信息的虚拟场景进行融合。在增强现实中,系统借助一种结合虚拟和现实世界的机制进行增强,但用户仍保持在现实世界中的存在感。它是一种新兴技术,在很大程度上吸引了教育培训信息增强、产品可视化、营销领域的虚拟尝试、旅游等领域的研究人员。影响AR体验的因素很多。根据AR应用的不同,讨论了图形渲染、跟踪、校准、显示等重要因素,这些因素有助于实现有效的AR体验。本文重点介绍了不同的跟踪技术,可分为基于传感器的跟踪和基于视觉的跟踪。基于传感器的跟踪还可以分为光学跟踪、磁跟踪、声跟踪和惯性跟踪。基于视觉的跟踪又进一步分为基于标记的跟踪和无标记的跟踪。跟踪技术的使用取决于AR应用程序。本文给出了每种跟踪技术的优缺点。最后,文章详细论述了基于标记的应用的要求和使用方法。
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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