| 1. |
- DiVerdi, S., et al.
(författare)
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A novel walk-through 3D display
- 2006
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Ingår i: Proc SPIE Int Soc Opt Eng. - : SPIE. - 0819460958 - 9780819460950
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Konferensbidrag (refereegranskat)abstract
- We present a novel walk-through 3D display based on the patented FogScreen, an "immaterial" indoor 2D projection screen, which enables high-quality projected images in free space. We extend the basic 2D FogScreen setup in three major ways. First, we use head tracking to provide correct perspective rendering for a single user. Second, we add support for multiple types of stereoscopic imagery. Third, we present the front and back views of the graphics content on the two sides of the FogScreen, so that the viewer can cross the screen to see the content from the back. The result is a wallsized, immaterial display that creates an engaging 3D visual.
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| 2. |
- DiVerdi, Stephen, et al.
(författare)
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An Immaterial Pseudo-3D Display System with 3D Interaction
- 2008
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Ingår i: Three-Dimensional Television. - : Springer. - 9783540725312 ; , s. 505-528
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- We present a novel walk-through pseudo-3D display, which enables 3D interactionand interesting possibilities for advanced user interface designs. Our work isbased on the patented FogScreen, an “immaterial” indoor 2D projection screenwhich enables high-quality projected images in free space. We extend the basic2D FogScreen setup with stereoscopic imagery and two-sidedness, in addition tothe use of head tracking to provide correct perspective 3D rendering for a singleuser. We also add support for 2D and 3D interaction for multiple users with theobjects on the screen, via a number of wireless input technologies that let us experimentwith interaction with or without encumbering devices. We evaluate theusability of these interaction techniques by observing non-expert use in real settingsto quantify the effects they have on 3D perception. The result is a wall-sized,immaterial pseudo-3D display that enables engaging 3D visuals with intriguing3D interaction.
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| 3. |
- Ericson, Finn, et al.
(författare)
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Interaction and rendering techniques for handheld phantograms
- 2011
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Ingår i: Conf Hum Fact Comput Syst Proc. - New York, NY, USA : ACM. - 9781450302289 ; , s. 1339-1344
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Konferensbidrag (refereegranskat)abstract
- We present a number of rendering and interaction techniques that exploit the user's viewpoint for improved realism and immersion in 3D applications on handheld devices. Unlike 3D graphics on stationary screens, graphics on handheld devices are seldom regarded from a fixed perspective. This is particularly true for recent mobile platforms, where it is increasingly popular to use device orientation for interaction. We describe a set of techniques for improved perception of rendered 3D content. View-point correct anamorphosis and stereoscopy are discussed along with ways to approximate the spatial relationship between the user and the device. We present the design and implementation of a prototype phantogram viewer that was used to explore these methods for interaction with real-time photorealistic 3D models on commercially available mobile devices.
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| 4. |
- Ioakeimidou, Foteini, et al.
(författare)
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3D Visualization and Interaction with Spatiotemporal X-ray Data to Minimize Radiation in Image-guided Surgery
- 2011
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Ingår i: 2011 24TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS). - NEW YORK, NY : IEEE. - 9781457711909
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Konferensbidrag (refereegranskat)abstract
- Image-guided surgery (IGS) often depends on X-ray imaging, since pre-operative MRI, CT and PET scans do not provide an up-to-date internal patient view during the operation. X-rays introduce hazardous radiation, but long exposures for monitoring are often necessary to increase accuracy in critical situations. Surgeons often also take multiple X-rays from different angles, as X-rays only provide a distorted 2D perspective from the current viewpoint. We introduce a prototype IGS system that augments 2D X-ray images with spatiotemporal information using a motion tracking system, such that the use of X-rays can be reduced. In addition, an interactive visualization allows exploring 2D X-rays in timeline views and 3D clouds where they are arranged according to the viewpoint at the time of acquisition. The system could be deployed and used without time-consuming calibration, and has the potential to improve surgeons' spatial awareness, while increasing efficiency and patient safety.
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| 5. |
- Jansson, Johan, 1978-, et al.
(författare)
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Gestural 3D Interaction with a Beating Heart : Simulation Visualization and Interaction
- 2011
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Ingår i: Proceedings of SIGRAD 2011. - : Linköping University Electronic Press. - 9789173930086
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Konferensbidrag (refereegranskat)abstract
- The KTH School of Computer Science and Communication (CSC) established a strategic platform in Simulation-Visualization-Interaction (SimVisInt) in 2009, focused on the high potential in bringing together CSC core com-petences in simulation technology, visualization and interaction. The main part of the platform takes the form aset of new trans-disciplinary projects across established CSC research groups, within the theme of ComputationalHuman Modeling and Visualization: (i) interactive virtual biomedicine (HEART), (ii) simulation of human mo-tion (MOTION), and (iii) virtual prototyping of human hand prostheses (HAND). In this paper, we present recentresults from the HEART project that focused on gestural and haptic interaction with a heart simulation.
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| 6. |
- Lakatos, D., et al.
(författare)
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T(ether) : Spatially-aware handhelds, gestures and proprioception for multi-user 3D modeling and animation
- 2014
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Ingår i: SUI 2014 - Proceedings of the 2nd ACM Symposium on Spatial User Interaction. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450328203 ; , s. 90-93
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Konferensbidrag (refereegranskat)abstract
- T(ether) is a spatially-aware display system for multi-user, collaborative manipulation and animation of virtual 3D objects. The handheld display acts as a window into virtual reality, providing users with a perspective view of 3D data. T(ether) tracks users' heads, hands, fingers and pinching, in addition to a handheld touch screen, to enable rich interaction with the virtual scene. We introduce gestural interaction techniques that exploit proprioception to adapt the UI based on the hand's position above, behind or on the surface of the display. These spatial interactions use a tangible frame of reference to help users manipulate and animate the model in addition to controlling environment properties. We report on initial user observations from an experiment for 3D modeling, which indicate T(ether)'s potential for embodied viewport control and 3D modeling interactions.
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| 7. |
- Leithinger, D., et al.
(författare)
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Physical Telepresence : Shape capture and display for embodied, computer-mediated remote collaboration
- 2014
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Ingår i: UIST 2014 - Proceedings of the 27th Annual ACM Symposium on User Interface Software and Technology. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450330695 ; , s. 461-470
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Konferensbidrag (refereegranskat)abstract
- We propose a new approach to Physical Telepresence, based on shared workspaces with the ability to capture and remotely render the shapes of people and objects. In this paper, we describe the concept of shape transmission, and propose interaction techniques to manipulate remote physical objects and physical renderings of shared digital content. We investigate how the representation of user's body parts can be altered to amplify their capabilities for teleoperation. We also describe the details of building and testing prototype Physical Telepresence workspaces based on shape displays. A preliminary evaluation shows how users are able to manipulate remote objects, and we report on our observations of several different manipulation techniques that highlight the expressive nature of our system.
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| 8. |
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| 9. |
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| 10. |
- Olwal, Alex, et al.
(författare)
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An immaterial, dual-sided display system with 3D interaction
- 2006
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Ingår i: Proc. IEEE Virtual Real.. - 1424402247 - 9781424402243
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Konferensbidrag (refereegranskat)abstract
- We present an interactive wall-sized immaterial display that introduces a number of interesting possibilities for advanced interface design. The immaterial nature of a thin sheet of fog allows users to penetrate and even walk through the screen, while its dual-sided nature allows for new possibilities in multi-user face-to-face collaboration and pseudo-3D visualization.
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