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Buildings require regular maintenance, and augmented reality (AR) could advantageously be used to facilitate the process. However, such AR systems would require accurate tracking to meet the needs of engineers, and work accurately in entire buildings. Popular tracking systems based on visual features cannot easily be applied in such situations, because of the limited number of visual features indoor,...
This paper presents a method of interaction and orientation that can be implemented in welding simulator and will be used for basic welding training. In welding process there are many factors that can affect the welding results. One of them is the orientation angle and interaction distance between plate and torch. Therefore, a method to find an angle and a distance between plate and welding torch...
We are presenting a novel hybrid mobile localization system for smart mobile devices which combines the prevalence of classical wireless methods with accuracy of computer vision techniques. In the proposed framework, initial localization is roughly measured through classical wireless methods. Later computer vision techniques are deployed to refine the measurement. Specifically an image acquired by...
There is extensive research on passengers mobility estimated position. Among these approaches, Simultaneous Localization And Mapping (SLAM) is one of the most frequent methods that exponentially increase the computational complexity. To overcome this problem, we propose a method based on augmented reality that reduces the computational complexity by using less computing power. With this method, each...
In this study, we aim at studying for an inexpensive-but-effective real-time localization and identification of known buildings or large permanent structures within user's current position in outdoor environment using integrated GPS and camera on smartphone. In addition to this, we also provide users guidance by augmenting text information describing about detected building over live image on display...
We conducted an experiment in an attempt to generate baseline accuracy and precision values for optical see-through (OST) head mounted display (HMD) calibration without the inclusion of human postural sway error. This preliminary work will act as a control condition for future studies into postural error reduction. An experimental apparatus was constructed to allow performance of a SPAAM calibration...
Tracking technologies are becoming an affordable commodity due to the wide use in mobile devices today. However, all tracking technologies available in commodity hardware is error prone due to problems such as drift, latency and jitter. The current understanding of human perception of static tracking errors is limited. This information about human perception might be useful in designing tracking systems...
A common problem with Optical See-Through (OST) Augmented Reality (AR) is misalignment or registration error with the amount of acceptable error being heavily dependent upon the type of application. Approximation methods, driven by user feedback, have been developed to estimate the necessary corrections for alignment errors. These calibration methods, however, are susceptable to induced error from...
TV Service using a mobile device as a second screen has been increasing. We propose a new TV system which is able to augment representation of TV programs beyond the TV screen. In the system, which we named augmented TV, since animated 3DCG content interlocked with TV programs is overlaid on live video from the mobile device camera in the mobile device screen by augmented reality techniques, the representation...
We present a new system that assists people's reading activity by combining a wearable eye tracker, a see-through head mounted display, and an image based document retrieval engine. An image based document retrieval engine is used for identification of the reading document, whereas an eye tracker is used to detect which part of the document the reader is currently reading. The reader can refer to...
We introduce an augmented reality referencing technique for shared environments that is designed to improve the accuracy with which one user can point out a real physical object to another user. Our technique, GARDEN (Gesturing in an Augmented Reality Depth-mapped ENvironment), is intended for use in otherwise unmodeled environments in which objects in the environment, and the hand of the user performing...
With popularization of smart phones, needs for location based services (LBS), which is one of the most promising Augmented Reality applications, increased rapidly. However, accuracy of most commercially available Global Positioning Systems (GPS) is below levels for providing practically meaningful location based information. Especially when there are high building structures nearby, GPS location measurements...
In this paper, we employ the widely used 2D barcode, the QR Code, to implement a QR Code based augmented reality (AR) system. In this system, QR Code is used to replace the traditional AR marker and the code can be tracked by the system without any maker registration procedure. This implies that the system is suitable for public domain applications since QR Code is a widely acceptable 2D barcode standard...
We present a system, PortableAR, that aims to provide Augmented Reality (AR) to diverse environments, like guided tourism visits or industrial maintenance tasks. The first version relied on AR tags and had low accuracy while the last version provides a successful AR experience using SURF and homography.
We have developed a spoken dialogue system using virtual conversational agent with augmented reality. The proposed system has architecture based on question and answer database that contains many question and answer pairs. Additionally, we have developed two agents displayed using augmented reality, which behave as avatars of objects to be operated. We evaluated user's impression as well as response...
Recent advances in mobile computing and augmented reality (AR) technology have lead to popularization of mobile AR applications. Touch screen input is common in mobile devices, and also widely used in mobile AR applications. However, due to unsteady camera view movement, it can be hard to carry out precise interactions in handheld AR environments, for tasks such as tracing physical objects. In this...
Recent advances in mobile computing and augmented reality (AR) technology have lead to popularization of mobile AR applications. Touch screen input is common in mobile devices, and also widely used in mobile AR applications. However, due to unsteady camera view movement, it can be hard to carry out precise interactions in handheld AR environments, for tasks such as tracing physical objects. In this...
This paper presents an interaction approach for augmented reality using the folding with a relaxed constraint. In our approach, the user can fold a paper and see virtual contents overlaid on the paper. The paper can be folded in horizontal, vertical, and diagonal direction. The folded surface is defined as two polygonal planes that are connected in the folding line. The main contribution of this paper...
Visual marker systems have become an ubiquitous tool to supply a reference frame onto otherwise general scenes. Throughout the last decades, a wide range of different approaches have emerged, each one endowed with different strengths and limitations. Some techniques adopt tags that are optimized to reach a high accuracy in the recovered camera pose, others are based on designs that aim to maximizing...
Visualization of engineering processes can be critical for validation and communication of simulation models to decision-makers. Augmented Reality (AR) visualization blends real-world information with graphical 3D models to create informative composite views that are difficult to replicate on the computer alone. This paper presents a robust and general-purpose mobile computing framework that allows...
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