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We present an integrated approach for the calibration and registration of color and depth (RGBD) sensors into a joint coordinate system without explicitly identifying intrinsic or extrinsic camera parameters. Our method employs a tracked checkerboard to establish a number of correspondences between positions in color and depth camera space and in world space. These correspondences are used to construct...
This work considers Virtual Reality (VR) applications dealing with objects manipulation (such as industrial product assembly, disassembly or maintenance simulation). For such applications, the operator performing the simulation can be assisted by path planning techniques from the robotics research field. A novel automatic path planner involving geometrical, topological and semantic information of...
In this poster we present Portable-Spheree, an interactive spherical rear-projected 3D-content-display that provides perspective-corrected views according to the user's head position, to provide parallax, shading and occlusion depth cues. Portable-Spheree is an evolution of the Spheree and it is developed in a smaller form factor, using more projectors and a dark-translucent screen with increased...
Technology has made some of the once unimaginable a reality. The invention of the computer has inspired some of the most useful inventions that we heavily rely on today. Computers were first given tasks to solve complex calculations and usually consisted of a simple command line interface. Overtime people started to see the potential that computers can have on our personal lives which lead to the...
An Augmented Reality (AR) composite layup tool was created using lo cost, off the shelf co ponents and software to prove and demonstrate the application of AR in a manufacturing environment. The project tested different tracking technologies in order to ascertain their practicality within an industrial environment. By developing an understanding of the challenges faced in implementing such an application,...
Rewarded at Laval Virtual 2014, the AccesSim project aims to develop a wheelchair simulator based on Virtual Reality (VR) and a dynamic force-feedback platform, which allows to experience and to evaluate the accessibility in complex urban or property environment. In order to address this issue, the dynamic force-feedback platform should provide haptic and vestibular feedback to various user profiles:...
“Eπıλoγη in Crisis” is a work in progress that has been developed by the research group of the Greek-French Master entitled "Art, virtual reality and multiuser systems of artistic expression", in a collaboration between the Athens School of Fine Arts and the University Paris8 Saint-Denis. It concerns an interactive project which is in-between a research tool and experimental game, that takes...
We present a complete hardware and software solution for integrating binocular eye tracking into current state-of-the-art lens-based Head-mounted Displays (HMDs) without affecting the user's wide field-of-view off the display. The system uses robust and efficient new algorithms for calibration and pupil tracking and allows realtime eye tracking and gaze estimation. Estimating the relative gaze direction...
We present a general toolbox for virtual reality (VR) research in the field of psychology. Our aim is to simplify the generation and setup of complicated VR scenes for researchers. Various study protocols about perception, attention, cognition and memory can be constructed using our toolbox. Here we specifically showcase a fully functional demo for change blindness phenomena. Video-http://youtu.be/xG1hUYTQQbk.
Pose estimation is a major requirement for any augmented reality (AR) application. Cameras and inertial measurement units (IMUs) have been used for pose estimation not only in AR but also in many other fields. The level of accuracy and pose update required in an AR application is more demanding than in any other field. In certain AR applications, (maintenance for example) a small change in pose can...
In this study, we propose a VR system for allowing various types of interaction with virtual objects using an autostereoscopic mobile display and an accelerometer. The system obtains the orientation and motion information from the accelerometer attached to the mobile display and reflects them to the motion of virtual objects. It can present 3D images with motion parallax by estimating the position...
NTT Media Intelligence Laboratories and DWANGO Co., Ltd. have jointly developed a virtual reality system that enables users to have an immersive experience visiting a remote site. This system makes it possible for users to watch video content wherever they want to watch it by using interactive streaming technology that selectively streams the user's watching section at a high bitrate in a limited...
A glove box simulator is presented for a safe and cost-effective training of the operators in the nuclear industry. The focus is on learning of the proper safety procedures and correct maintenance of a glove box in the presence of potentially radioactive substances. Two common situations are explored — operator working in the glove box and operator performing maintenance on it.
We aim to develop a virtual-reality system that records a person's walking experience and gives other users the experience of his/her walking. We recorded stereo motion images of video cameras on a person's forehead with synchronous acceleration data of ankles. Then, we presented stereo motion images on a HMD with synchronous vibrations on soles of observer's feet. Observers reported better experience...
It is known that visual, auditory, and tactile modalities affect the experiences of eating and drinking. One such example is the “glug” sound and vibration from a Japanese sake bottle when pouring liquid. Our previous studies have modeled the wave of the vibration by summation of two decaying sinusoidal waves with different frequencies. In this paper, to enrich expression of various types of liquid,...
When dealing with real estate business, it is quite difficult for estate agents to make customers understand the potential and the volumes of free spaces. Thus, we propose an application that aims to solve these issues based on a laying out scenario in which a seller and a customer collaborate. As the roles of both users are different, we propose an asymmetric collaboration where the two users do...
In this demo we will demonstrate integration of general content delivery from a windows desktop to a multi-projector display of arbitrary, shape, size and resolution automatically calibrated using our calibration methods. We have developed these sophisticated completely automatic geometric and color registration techniques in our lab for deploying seamless multi-projector displays on popular non-planar...
The leading motive of the research demo is the utilization of the Augmented Virtuality technology and in particular the egocentric representation of real body parts in virtual and immersive environments. In this context, a prototypical application was developed, which superimposes the current view of the user's hands on the virtual scene in real-time. This is achieved in form of a captured video stream...
One of the main challenges facing the practical utilization of new assistive technology for the blind is the process of training. This is true both for mastering the device and even more importantly for learning to use it in specific environments. Such training usually requires external help which is not always available, can be costly, and attempts to navigate without such preparation can be dangerous...
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