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In order to further improve the operating performance of teleoperation robot system, and give full play to the advantages of augmented reality technology, this paper presents a human-computer interaction method with multi-dimensional information in the teleoperation augmented reality scenario. This method not only synthesizes the information the operator can directly perceive, but also the information...
The calibration of optical see-through head-mounted displays is an important fundament for correct object alignment in augmented reality. Any calibration process for OSTHMDs requires users to align 2D points in screen space with 3D points in the real world and to confirm each alignment. In this poster, we present the results of our empiric evaluation where we compared four confirmation methods: Keyboard,...
As large ships are never produced in masses, it often occurs that the construction process and production process overlap in time. Many shipbuilding companies have problems with discrepancies between the construction data and the real built ship. The assembly department often has to modify CAD data for a successful installation. We present an augmented reality system, where a user can visualize the...
The calibration of optical see-through head-mounted displays is an important fundament for correct object alignment in augmented reality. Any calibration process for OSTHMDs requires users to align 2D points in screen space with 3D points in the real world and to confirm each alignment. In this poster, we present the results of our empiric evaluation where we compared four confirmation methods: Keyboard,...
As large ships are never produced in masses, it often occurs that the construction process and production process overlap in time. Many shipbuilding companies have problems with discrepancies between the construction data and the real built ship. The assembly department often has to modify CAD data for a successful installation. We present an augmented reality system, where a user can visualize the...
In this paper, we proposed a tensor-based hand-held projection system that makes use of pure computer vision techniques. Using a projector and two cameras, the system is able to spatially augment content on movable rigid surfaces, such as a map or a book. The advantage of our system is that neither attachment of sensors to the projection surface nor the prior reconstruction of the surface structure...
Access to the scene irradiance is a desirable feature in many computer vision algorithms. Applications like BRDF estimation, relighting or augmented reality need measurements of the object's photometric properties and the simplest method to get them is using a camera. However, the first step necessary to achieve this goal is the computation of the function that relates scene irradiance to image intensities...
In the working environment of argument reality, users interact with virtual objects by hands. Making real-time collision detection between virtual and real objects is very essential to enhance the immersion and authenticity of the environment. In this paper, the key points of hand are marked by color block. We use a pair of common web cameras to collect images and track the points. Then the stereo...
This paper aims to present all the study done on the SPIDAR, which is a tracking and haptic device, in order to improve its accuracy on the given position. Firstly we proposed a new semi-automatic initialization technique for this device using an optical tracking system. Then, we propose to use Support Vector Regression (SVR) to calibrate the SPIDAR in order to reduce location errors. We obtained...
Fiducial marker systems consist of unique patterns mounted in the environment and computer vision algorithms that help automatically find features in digital camera images. They are useful for Augmented Reality (AR), robot navigation, 3D modeling, and other applications. In this paper we introduce an extension of marker-based approaches. For some applications which need a large working space, we mounted...
We describe a robust and accurate algorithm, nicknamed AffTrack, to track selected features of a rigid 3D object in a video recording, given a canonical image of each feature and its position on the object. AffTrack uses a synergistic combination of a multiscale feature finder and a flexible camera calibrator. This synergy between the two modules allows, AffTrack to recover features after occlusions...
Augmented Virtual Environments (AVE) are very effective in the application of surveillance, in which multiple video streams are projected onto a 3D urban model for better visualization and comprehension of the dynamic scenes. One of the key issues in creating such systems is to estimate the parameters of each camera including the intrinsic parameters and its pose relative to the 3D model. Nowadays,...
In this paper, we propose augmented reality (AR) applications for equipment maintenance. The system is based on the projection and detection of infrared markers. We use an infrared projector to project markers onto the surface of the equipment to be maintained. These markers are invisible to the human-eye, but they could be clearly identified by the infrared camera. As a proof of concept, we have...
Outdoor Augmented Reality applications often combine heterogeneous sensors to recover 3D localization (position and orientation) in large environments. Indeed, accurate localization is critical to register virtual augmentations over a real scene. This paper describes a localization system composed of two parts: an Aid-localization subsystem and a Vision subsystem. The Aidlocalization subsystem, composed...
The registration in augmented reality is a process which merges virtual objects generated by computer with real world image caught by camera. This paper describes the tracker-based registration and the knowledge-based registration, and analyzes the process and current approaches of computer vision-based registration. In consideration of current research challenges, the outdoor registration technology...
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