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A DualMode User Interface for Accessing 3D Content on the World Wide Web
, 2012
"... The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center ..."
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Cited by 7 (2 self)
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The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center, with all points on the surface laying the same distance from the center point. This distance is known as the radius of the sphere. The maximum straight distance through the sphere is known as the diameter of the sphere. A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle. The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center, with all points on the surface laying the same distance from the center point. This distance is known as the radius of the sphere. The maximum straight distance through the sphere is known as the diameter of the sphere. A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle.
ImageDriven View Management for Augmented Reality Browsers
"... Figure 1: Common labeling as used in many AR browsers (Left) compared to our imagebased approach (Right). Position of the labels can be automatically optimized, but also their appearance, including depth cue for the labels ’ anchor or their leader lines. In this paper, we introduce a novel view man ..."
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Figure 1: Common labeling as used in many AR browsers (Left) compared to our imagebased approach (Right). Position of the labels can be automatically optimized, but also their appearance, including depth cue for the labels ’ anchor or their leader lines. In this paper, we introduce a novel view management technique for placing labels in Augmented Reality systems. A common issue in many Augmented Reality applications is the absence of knowledge of the real environment, limiting the efficient representation and optimal layout of the digital information augmented onto the real world. To overcome this problem, we introduce an imagebased approach, which combines a visual saliency algorithm with edge analysis to identify potentially important image regions and geometric constraints for placing labels. Our proposed solution also includes adaptive rendering techniques that allow a designer to control the appearance of depth cues. We describe the results obtained from a user study considering different scenarios, which we performed for validating our approach. Our technique will provide special benefits to Augmented Reality browsers that usually lack scene knowledge, but also to many other applications in the domain of Augmented Reality such as cultural heritage and maintenance applications.
Augmented Textual Data Viewing in 3D Visualizations Using Tablets
"... Many data sets contain structural 3D components along with associated textual data. While structural data is often best visualized on large stereoscopic displays, such displays can pose problems presenting accompanying textual information. Chief among these problems is a tradeoff between size depend ..."
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Many data sets contain structural 3D components along with associated textual data. While structural data is often best visualized on large stereoscopic displays, such displays can pose problems presenting accompanying textual information. Chief among these problems is a tradeoff between size dependent legibility of text and the occlusion of structural data if text is presented at larger sizes. Our solution to this problem integrates structural data shown on a large display while users select features of the structure and view the associated textual data on personal tablets. Our solution also lends itself to collaborative browsing tasks. In our initial implementation each user can individually select structural components and view the associated text on their own tablet; thus, everyone becomes an active participant in data mining. When individual users find textual data they deem of interest to the group they can share it with collaborators by temporarily pushing the text box to the large display. The current status and each individual’s browsing history are shown on the large display in order to provide awareness of other team members ’ actions.
Adaptive Recommendations for Enhanced Nonlinear Exploration of Annotated 3D Objects
"... We introduce a novel approach for letting casual viewers explore detailed 3D models integrated with structured spatially associated descriptive information organized in a graph. Each node associates a subset of the 3D surface seen from a particular viewpoint to the related descriptive annotation, to ..."
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We introduce a novel approach for letting casual viewers explore detailed 3D models integrated with structured spatially associated descriptive information organized in a graph. Each node associates a subset of the 3D surface seen from a particular viewpoint to the related descriptive annotation, together with its authordefined importance. Graph edges describe, instead, the strength of the dependency relation between information nodes, allowing content authors to describe the preferred order of presentation of information. At runtime, users navigate inside the 3D scene using a camera controller, while adaptively receiving unobtrusive guidance towards interesting viewpoints and history and locationdependent suggestions on important information, which is adaptively presented using 2D overlays displayed over the 3D scene. The capabilities of our approach are demonstrated in a realworld cultural heritage application involving the public presentation of sculptural complex on a large projectionbased display. A user study has been performed in order to validate our approach.
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"... The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center ..."
Abstract
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The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center, with all points on the surface laying the same distance from the center point. This distance is known as the radius of the sphere. The maximum straight distance through the sphere is known as the diameter of the sphere. A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle. The cube (here in blue) is a threedimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. A sphere is a perfectly round geometrical object (here in green). Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center, with all points on the surface laying the same distance from the center point. This distance is known as the radius of the sphere. The maximum straight distance through the sphere is known as the diameter of the sphere. A pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle.
The Dream and the Cross: bringing 3D content in a digital edition
"... Abstract—The Dream of the Rood is one of the earliest Christian poems in the corpus of Old English literature, and an example of the genre of dream poetry. While its complete text can be found in the 10th Century ”Vercelli Book”, the poem is considerably older, and its oldest occurrence is carved (i ..."
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Abstract—The Dream of the Rood is one of the earliest Christian poems in the corpus of Old English literature, and an example of the genre of dream poetry. While its complete text can be found in the 10th Century ”Vercelli Book”, the poem is considerably older, and its oldest occurrence is carved (in runes) on the 78th Century Ruthwell Stone Cross. In this paper, we present the prototype of a webbased digital edition of the Dream of the Rood, as it appears on the Ruthwell Cross. The multimedia framework presents the highly detailed 3D model acquired with 3D Scanning technology, together with the transcription and translation of the runes that can be found on its surface. The textual and spatial information are linked through a system of bidirectional links called spots, that give the possibility to the user to have a free navigation over the multimedia content, keeping the 3D and textual data synchronized. The proposed work provides discussion and solution on two main issues related to digital editions: the integration of three dimensional content in the context of the presentation on the web platform of heterogeneous multimedia data, and the creation of an XML encoding that could account for the necessities of 3D data disposition, but keeping the encoding rules in the context of the standards of the community. I.