Showing papers in "Computers & Graphics in 2011"

TL;DR: An enhanced approach for registering and tracking such anchor points, which is suitable for current generation mobile phones and can also successfully deal with the wide variety of viewing conditions encountered in real life outdoor use is presented.

TL;DR: This survey presents an overview on the subject of color scales by focusing on important guidelines, experimental research work and tools proposed to help non-expert users.

TL;DR: The proposed approach aims to organize multiple representations (and associated information) around a semantic description model with the goal of defining a system for the multi-field analysis of buildings.

TL;DR: This work presents a novel histogram reshaping technique which allows significantly better control than previous methods and transfers the color palette between images of arbitrary dynamic range and achieves this by manipulating histograms at different scales.

TL;DR: A method based on a series of geometric transformations is presented, which transforms control points of a modern reference map to the coordinate system of an old map, which helps to assess the geometric accuracy of historical geographical information before using the data for geo-historical studies.

TL;DR: This survey article reviews glyph-based visualization techniques that have been exploited when visualizing spatial multivariate medical data and derives a taxonomy of glyph properties that is based on classification concepts established in information visualization.

TL;DR: This paper replaces the live camera view used in video see through AR with a previously captured panoramic image to improve the perceived quality of the tracking while still maintaining a similar overall experience and evaluates this technique on both a performance and experiential basis.

TL;DR: A novel declarative modeling approach that enables designers to concentrate on stating what they want to create instead of on describing how they should model it, and which represents a significant step towards providing more user control and flexibility in procedural modeling of virtual worlds.

TL;DR: Two pioneering field trials where MapLens, a magic lens that augments paper-based city maps, was used in small-group collaborative tasks are reviewed, finding place-making and use of artefacts to communicate and establish common ground as predominant modes of interaction in AR-mediated collaboration with users working on tasks together despite not needing to.

TL;DR: An interactive segmentation method for 3D medical images that reconstructs the surface of an object using energy-minimizing, smooth, implicit functions called variational interpolation is presented and how to speed up the algorithm to achieve almost real-time calculation times while preserving the overall segmentation quality is shown.

TL;DR: A robust and blind watermarking algorithm for three-dimensional (3D) meshes that embeds the watermark through a modified scalar Costa quantization of the zero-order volume moments of some selected candidate patches.

TL;DR: This report presents a multiview reconstruction tool chain composed from various freely available, open source components and a practical application example in the form of a 3D model of an archaeological site.

TL;DR: A context-aware garment sketch interpretation based on a set of observations about key factors that affect the shape of garments is proposed which obtains more realistic results than previous techniques.

TL;DR: This special section contains seven papers on mobile AR, covering a range of topics from tracking, user studies, visualization, and collaborative applications.

TL;DR: A diffusion-geometric framework for stable component detection in non-rigid 3D shapes is formulated, which can be used for geometric feature detection and description and shows its potential as a source of high-quality features.

TL;DR: It was found that micro-CT could produce accurate high-resolution ''virtual'' artefacts that resolve features greater than [email protected] and it was possible to visualise the key features of percussion, which distinguish intentionally made flakes from natural breakage.

TL;DR: This paper designs a mesh segmentation method based on clustering, dedicated to the CAD mesh model, and demonstrates the effectiveness and efficiency of the method.

TL;DR: This paper surveys different transparency techniques and analyzes them in terms of processing time, memory consumption, and accuracy, pointing out pros and cons that can be used to help with the decision of which method to use in a given situation.

TL;DR: An extended PIA (EPIA) format is developed, which allows that the number of the control points is less than that of the given data points, and which has great potential in large scale data fitting.

TL;DR: Aroundplot is presented, a novel focus+context interface for providing multiple location cues for off-screen objects in an immersive 3D environment that could find the target object for a given location cue faster and more accurately with Aroundplot than with a top-down 2D radar.

TL;DR: This proposed completion framework will iteratively conduct symmetry-based and template-based repairs and will greatly benefit subsequent archeological and anthropological processing and analysis.

TL;DR: An out-of-core editing system for point clouds, which allows selecting and modifying arbitrary parts of a huge point cloud interactively, and an algorithm to alleviate the artifacts when rendering a point cloud with large discrepancies in density in different areas by estimating point sizes heuristically.

TL;DR: The vertex set of the Capacity-Constrained Delaunay Triangulation (CCDT) is shown to have good blue noise characteristics, comparable in quality to those of state-of-the-art methods, achieved at a fraction of the runtime.

TL;DR: A probabilistic framework is introduced in which the segmentation and the correspondences of neighboring feature points allow us to enhance or moderate the authors' certainty of a feature-point similarity.

TL;DR: The insight is that the use of quasi-uniform mesh sampling, an interesting option now that very large meshes can be edited and displayed in real-time, provides the right framework for expressing and efficiently processing arbitrary changes of topological genus.

TL;DR: This paper presents a novel algorithm of mesh segmentation from original scanning data points, which essentially consists of three steps: normal based initial decomposing, further segmentation based on curvature criteria and Gauss mapping, followed by the detection of quadric surface features.

TL;DR: It is shown that fundamental aspects of traditional modeling can be directly transferred to this novel kind of environment, resulting in an intuitive application behavior, and modeling operations which naturally benefit from implicit representations are described.

TL;DR: This paper identified four grand challenges which synthesise the open issues in common to the considered fields and represent a roadmap towards semantic 3D media and gives an overview of the various aspects of semantics required to optimise tasks and processes related to 3D content in different application domains.

TL;DR: An iterative algorithm to seek for the optimal polycube domain and mapping, with the constraint on using a restricted number of cubes, and an effective optimization framework to compute polycube mapping are presented.

TL;DR: By re-defining the surface metric as its equi-affine version, the surface with its modified metric tensor can be treated as a canonical Euclidean object on which most classical Euclidesan processing and analysis tools can be applied.