ICAT-EGVE2016 - Posters and Demos

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Anatomy-Inspired Weight for Real-time Character Animation
(The Eurographics Association, 2016) Kim, YoungBeom; Park, Byung-Ha; Jung, Kwang-Mo; Han, JungHyun; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
In this paper, the use of anatomy-inspired weight (AIW) is proposed to automatically compute the skinning weights for realtime character animation. AIW is modeled as a function of the anatomical distance to consider anatomical structures, such as bones and muscles. The experimental results demonstrate that AIW's facilitate the natural animation of characters, which is an important part of VR/AR/MR contents.
Automatic Display Zoom Using Face Size of Camera Image
(The Eurographics Association, 2016) Satale, Yuki; Funahashi, Kenji; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
When it is hard to see a small font size document that is in your hand, you usually move it closer to your face. When you want to see the whole of a large sheet such as a map, you usually get it away from your face. On the other hand when you get into a same situation on a PC screen and tablet device, you zoom it using a mouse or doing pinch operation. So we consider zooming display appropriately referring the distance between a face and a screen also when using PC and tablet. If the distance value is mapped to the zoom scale parameter directory, it always changes according to the slight change of the posture. Therefore the presence or absence of the scale change is determined from the distance change in a predefined period. In this paper, we propose corresponding about the distance change and scaling, also described for the experimental system in order to confirm the validity of this idea.
Become your Avatar: Fast Skeletal Reconstruction from Sparse Data for Fully-tracked VR
(The Eurographics Association, 2016) Friðriksson, F. A.; Kristjánsson, H. S.; Sigurðsson, D. A.; Thue, D.; Vilhjálmsson, H. H.; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
SomaVR enables users to become their own avatar in room-scale virtual reality (VR). The technology uses motion tracking and VR devices to create a data model of the user's body. An avatar of the user is then dynamically created, such that the user experiences the avatar as his own body. The software is designed to increase VR immersion, present new opportunities for research and create a new way to experience games and other VR applications. Integration of the software is designed to be easy and require minimal configuration.
Force Feedback Device using Electro-Rheological Gel and One-sided Pattern Electrodes
(The Eurographics Association, 2016) Miyama, K.; Koyanagi, K.; Kakinuma, Y.; Anzai, H.; Sakurai, K.; Sawai, K.; Motoyoshi, T.; Masuta, H.; Oshima, T.; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
We develop a force feedback device that generates rotational and translational resistive forces using electro-rheological (ER) gel with one-sided pattern electrodes. ER gel is a functional material in which applied electric fields increase the shear stress on the surface. One-sided pattern electrodes allow electrodes to be installed on only one side of the gel, simplifying the structure of the device. We herein describe the device and the software used to test the device. We measure shear stress of the ER gel on one-sided pattern electrodes for rotational and translational movement.
FRED's Happy Factory
(The Eurographics Association, 2016) Baggett, Aaron; Jaeger, Alex; Lewis, Benjamin; Wardlaw, Isaac; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
The primary driver of the recent resurgence in virtual reality has been video gaming, and while VR games are becoming an increasingly saturated market, they are likely to linger as the field's prime mover for several years to come. Additionally, the availability of development tools such as Unity and Unreal, which allow professionals and novices alike to design and build games easily, means that the spring whence VR games issue will not soon be stanched. It is up to game designers and software engineers to map out the frontier that this medium opens up and, moreover, to do so with a careful eye toward not inundating the user in mishmashed sensory overload.
Functional Reactive Augmented Reality: Proof of Concept Using an Extended Augmented Desktop with Swipe Interaction
(The Eurographics Association, 2016) Marum, Joao Paulo Oliveira; Jones, J. Adam; Cunningham, H. Conrad; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Functional Reactive Programing (FRP) is a new paradigm that has been evolving and used in many different fields, i.e.: robotics, user interface and others. FRP was originally developed as a programming paradigm to handle animation and it has since been used as a replacement for the observer pattern in systems that require order and accuracy when handling large numbers of callbacks. Inaccuracy and ordering issues related to callbacks can negatively affect a user's experience when using a virtual environment (VE). We propose a framework for virtual environments, that we believe will improve the design of them through the use of functional reactive capabilities. As a proof of the concept, we are currently developing a FRP-based augmented desktop system that utilizes multiple virtual and real workspaces and gesture interactions for switching between desktop contexts.
ICAT-EGVE 2016- Posters and Demos: Frontmatter
(Eurographics Association, 2016) Tom Coffin; Gabriel Zachmann; Akihiko Shirai; Regis Kopper; Pedro Morillo; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Proposed VR Simulator with Ability to Discriminate Velocity of Approaching Car
(The Eurographics Association, 2016) Aoyama, S.; Terata, Y.; Saruta, K.; Chen, G.; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
In Japan, fatal traffic accidents have accounted for the majority of overall traffic fatalities by the elderly pedestrian. One of the major reasons why elderly pedestrians are involved in traffic accidents is that they misread the velocity of the approaching car because aging leads to decline in sensory function. We developed an inspection system that can quantify the ability of persons to discriminate the velocity of an approaching car using virtual reality(VR) for the purpose of educating the traffic system. In this Simulator, it presents a video in which two types velocity of car moves toward the subject. The subjects answer a faster car in the two types velocity car. In this inspection, this simulator get again recognize the decline of their own sensory function.
Real-Time Marker Tracking with Microsoft Kinect
(The Eurographics Association, 2016) Gunter, Alexander; Robb, Andrew; Jones, J. Adam; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
In this document, we discuss a work-in-progress which will implement real-time marker tracking with the Microsoft Kinect. The Kinect uses an infrared depth sensor to capture 3D video, and retroreflective surfaces are not visible to this sensor. Thus we can adhere anular markers made of retroreflective material to a surface and identify them in the depth sensor's output. By placing a non-reflective surface at the marker's center and identifying it in the depth image, we can track the marker a surface and map it to a point in a virtual space. We are able to identify potential markers using an optimized and modified version of the flood fill algorithm, and we will filter out noise by validating potential markers against the known topology and dimensions of the markers.Our goal is to demonstrate real-time tracking and virtual representation of the marker using the Unity Game Engine.
The Simulated Experience Road Crossing Using AR
(The Eurographics Association, 2016) Aoyama, S.; Terata, Y.; Saruta, K.; Chen, G.; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
In Japan, fatal traffic accidents have accounted for the majority of overall traffic fatalities by the pedestrians,In addition, About 73% is pedestrian fatalities by while pedestrians are crossing road.Therefore, Many of pedestrian traffic fatalities have occurred in the crosswalk crossing. One of the major reasons why pedestrians are involved in traffic accidents is that they does not confirm safety. So, we developed an crosswalk simulator for education that pedestrians are crossed a road using the Augmented Reality (AR). Because the simulator can present a virtual vehicle to the real road, it is possible to produce a pseudo traffic-environment, This simulator can experience a safe road crossing at low cost. The subject can learn the dangerous crossing by the experience.
Simultaneous Socio-Spatial Shared Signage
(The Eurographics Association, 2016) Shirai, Akihiko; Yamaguchi, Yuta; Hsieh, Rex; Suzuki, Hisataka; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Simultaneous Socio-Spatial Shared Signage (5S) is an integrated demonstration project which consists of VRoadCast and ExField display systems. VRoadCast is a broadcasting system designed for VE(Virtual Environment) which lets non-players see what the players are doing in game. ExField is a glassless multiplex display system that shows different contents when viewed from different directions. In this demonstration, we proposed an augmented reality broadcasting environment without any wearable components. In this specific version, players can trip different parts of France. The contents is composed by 2D photos and 360 degree camera named Theta-S. The prototype was tested by the public at DCEXPO 2016 Laval Virtual stand and was recognized as a new signage media of VR experience for unconnected audiences.
A Study of Sense of Self-agency Focused on Cross-correlation and Delay Between Action and Effect in Continuous Operation
(The Eurographics Association, 2016) Kataoka, Toshiki; Funahashi, Kenji; Tanida, Koji; Yashiro, Katsuya; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Sense of self-agency has been proposed in psychology field, and it is the sense that I am the initiator or source of the action. We discuss it on continuous operation to find out the transition of the sense for a change of delay and cross-correlation that is the degree of noise between an action as an input signal and its effect as an output signal. We conclude that sense of self-agency is affected by both of a cross-correlation and a delay, human gets stronger sense of self-agency when cross-correlation between action and effect is higher, and an acceptable noise and delay to feel enough good operational feeling may be predicted.
Superimposing Questioner on Presentation Screen Using Microphone with Whole-Sky Camera
(The Eurographics Association, 2016) Kobayashi, Yuki; Funahashi, Kenji; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Academic conferences are usually held at a large hall. It is difficult that audiences watch the facial expression and gesture of a presenter there. Sometimes the presenter is shot by video camera and projected onto another screen, but it involves costs. At the same time someone usually asks a question there. However conference site is large as mentioned above, it is also difficult that audiences watch the questioner. Of course a conference staff can shoot the questioner and projects onto another screen, but additional manpower is required. Although it is not easy to install a camera at a conference site, a questioner generally uses a microphone. Then we consider projecting a questioner onto a screen using the camera built-in a microphone. In this paper we describe the pilot system to verify the effectiveness of this idea.
Video Guides on Head-Mounted Displays: The Effect of Misalignments on Manual Task Performance
(The Eurographics Association, 2016) Pathirathna, Shalika; Sandor, Christian; Taketomi, Takafumi; Plopski, Alexander; Kato, Hirokazu; Tom Coffin and Gabriel Zachmann and Akihiko Shirai and Regis Kopper and Pedro Morillo
Head-Mounted Displays (HMD) are becoming widely available at affordable prices. A typical application of HMDs is supporting users when perform manual tasks. However, displaying information on a HMD without any registration with the environment lead to misalignments and reduced task performance. The goal of our investigations is to quantify how increased misalignments impact the performance. We conducted two experiments and we found that task completion time is significantly affected by World space Misalignment and a significant correlation of the absolute difference between World space Misalignment and Screen space Misalignment to the task completion time.

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