A view-dependent, polyhedral 3D display

Harish, Pawan; Narayanan, P. J.

doi:10.1145/1670252.1670269

Cited by 8 publications

(5 citation statements)

References 10 publications

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“…The idea of a position-dependent visualization has been widely developed since the first immersive virtual reality and CAVE environments [2,3,5,4,7,6,1]. With this paper we are introducing an approach that differs from the literature since it adopts a novel and robust head tracking system that is based on a simple modification of standard LCD shutter glasses.…”

Section: Related Workmentioning

confidence: 99%

A low cost tracking system for position-dependent 3D visual interaction

Cosmo

Albarelli

Bergamasco

2014

Proceedings of the 2014 International Working Conference on Advanced Visual Interfaces

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In many visual interaction applications the user needs to explore a scene by moving with respect to the virtual environment. Using a fixed camera viewpoint leads to visual inconsistencies, which can be avoided only if the exact pose of the user head is known and can be used to produce a perspective correct rendering. To this end, tracking devices are often used, however many of them are relatively expensive or require the user to wear special apparel. With this paper we present a tracking system that can be implemented with a simple and very low cost modification of standard shutter glasses. The accuracy of such approach has been evaluated quantitatively with a specially crafted experimental setup.

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Section: Related Workmentioning

confidence: 99%

A low cost tracking system for position-dependent 3D visual interaction

Cosmo

Albarelli

Bergamasco

2014

Proceedings of the 2014 International Working Conference on Advanced Visual Interfaces

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“…Another alternative is to use homography pre-warping to render to FTVR displays [27], [28]. Our previous work uses this method to create a polyhedral walk-around display [29]. A scalable culling pipeline is required to feed FTVR rendering methods if arbitrary number of planes are to be used in a display configuration.…”

Section: Related Workmentioning

confidence: 99%

Designing Perspectively Correct Multiplanar Displays

Harish

Narayanan

2013

IEEE Trans. Visual. Comput. Graphics

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Abstract-Displays have remained flat and passive amidst the many changes in their fundamental technologies. One natural step ahead is to create displays that merge seamlessly in shape and appearance to one's natural surroundings. In this paper, we present a system to design, render to, and build view-dependent multiplanar displays, of arbitrary shape built using planar, polygonal facets. Our system provides high quality, interactive rendering of 3D environments to a head-tracked viewer on arbitrary planar display shapes. We develop a novel rendering scheme that creates exact image and depth at each display facet. The facets thus align exactly at boundaries without inconsistencies in comparison with existing methods. Our approach scales well to large numbers of display facets. This is achieved using a single-pass rendering of all facets using a parallel, per-frame, viewdependent binning and prewarping of scene triangles. The method places no constraints on the scene or display and allows for fully dynamic scenes to be rendered at high resolutions using a single pass of rasterization. These are implemented efficiently on the GPUs. A general realization of our system envisions a display of an arbitrary shape built using polygonal facets. The display is driven using one or more quilt images into which the the pixels are packed. We present a few prototype displays to establish the scalability of our system to different shapes, form factors, and complexity: from a cube made out of LCD panels to spherical/cylindrical projected setups to arbitrary complex shapes in simulation. Performance is shown in terms of both quality and rendering speeds of our system for increasing scene and display facet sizes. A subjective user study is also presented to evaluate the user experience using a walk-around display to a flat panel in a game-like setting. 3Index Terms-Non-rectangular displays, fish tank virtual reality, arbitrary shaped displays, 3D visualization, view-dependent rendering, fast culliung, user interaction.

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“…Cubee [30], which is a large-scale version of pCubee, is another reactive outward-facing volumetric display, but its weight and size make it difficult to maneuver (the display itself is supported with ropes from an overhead truss) and is not suitable for dynamic, reactive tasks that require precise and rapid user response. Harish and Narayanan [19] presented an algorithm for per-pixel depth calculation to overcome depth artifacts for synthetic renderings of polyhedral geometric displays, however standard off-axis projection techniques are sufficient for physical geometric displays, such as pCubee.…”

Section: Volumetric and Geometric Displaysmentioning

confidence: 99%

pCubee

Stavness

Lam

Fels

2010

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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In this paper, we describe the design of a personal cubic display that offers novel interaction techniques for static and dynamic 3D content. We extended one-screen Fish Tank VR by arranging five small LCD panels into a box shape that is light and compact enough to be handheld. The display uses head-coupled perspective rendering and a realtime physics simulation engine to establish an interaction metaphor of having real objects inside a physical box that a user can hold and manipulate. We evaluated our prototype as a visualization tool and as an input device by comparing it with a conventional LCD display and mouse for a 3D tree-tracing task. We found that bimanual interaction with pCubee and a mouse offered the best performance and was most preferred by users. pCubee has potential in 3D visualization and interactive applications such as games, storytelling and education, as well as viewing 3D maps, medical and architectural data.

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A view-dependent, polyhedral 3D display

Cited by 8 publications

References 10 publications

A low cost tracking system for position-dependent 3D visual interaction

A low cost tracking system for position-dependent 3D visual interaction

Designing Perspectively Correct Multiplanar Displays

pCubee

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