Filters

201917
Reset filters

Settings

Search Results

Now showing 1 - 10 of 17
  • Thumbnail Image
    Item
    D.A.V.E: A Prototype for Automatic Environment Decoration
    (The Eurographics Association, 2019) Glover, Callum James; Anderson, Eike Falk; Fusiello, Andrea and Bimber, Oliver
    To fully immerse players in video games, elements of the game world must form a rich, coherent and believable universe, which is time consuming and expensive to achieve manually. We propose an artists' tool for Autodesk Maya to aid environment decoration, allowing artists to focus on the more important elements of the worlds they create.
  • Thumbnail Image
    Item
    Flexible Type: Methods and Applications of Modifying Glyph's Horizontal and Vertical Weight
    (The Eurographics Association, 2019) Kumawat, Nirmal; dhanuka, praveen kumar; Fusiello, Andrea and Bimber, Oliver
    Graphic designers create logos or artworks by using various tools such as Adobe Illustrator, InDesign etc. Many times, designers face a major problem where they want to change the visual appearance of the text to fit the design in the current context or to make the design look better, but text editing options provided today are very limiting to the user's creativity. The designers get around this by converting text to outlines and then modifying each glyph like a separate graphic. This leads to text no longer being live (essentially unlinked) and the edits for each glyph can be time consuming. The poster presents methods for modifying glyph's horizontal and vertical weight. Later, the poster aims to provide the application of such modification to generate multiple styles by modifying glyph's overall Weight, Width, CapHeight, xHeight, height of Ascender and Descender etc.
  • Thumbnail Image
    Item
    A Projection Mapping System onto a Human Body for Medical Applications
    (The Eurographics Association, 2019) Fukuhara, Ryo; Kaneda, Kazufumi; Tamaki, Toru; Raytchev, Bisser; Higaki, Toru; Nishimoto, Soh; Sotsuka, Yohei; Fusiello, Andrea and Bimber, Oliver
    In breast reconstructive surgery where patient's abdominal fat and blood vessels are transplanted to the breast, it is very important to identify the course of the blood vessels inside the abdomen. In this paper, we propose a system for projecting blood vessels extracted from computer tomography angiography (CTA) on a patient's abdominal surface to support the breast reconstructive surgery. The proposed system detects the position and orientation of a projector automatically using an image captured by a camera mounted with the projector and is able to project the exact course of the blood vessels onto an abdominal skin from an arbitrary direction. An experiment using an abdominal model fabricated from patient's CTA data with a 3D printer demonstrates the usefulness of the proposed system.
  • Thumbnail Image
    Item
    Multi-Scale Point Cloud Analysis
    (The Eurographics Association, 2019) Lejemble, Thibault; Mura, Claudio; Barthe, Loïc; Mellado, Nicolas; Fusiello, Andrea and Bimber, Oliver
    Surfaces sampled with point clouds often exhibit multi-scale properties due to the high variation between their feature size. Traditional shape analysis techniques usually rely on geometric descriptors able to characterize a point and its close neighborhood at multiple scale using smoothing kernels of varying radii. We propose to add a spatial regularization to these point-wise descriptors in two different ways. The first groups similar points in regions that are structured in a hierarchical graph. The graph is then simplified and processed to extract pertinent regions. The second performs a spatial gradient descent in order to highlight stable parts of the surface. We show two experiments focusing on planar and anisotropic feature areas respectively.
  • Thumbnail Image
    Item
    Can we Invert a Local Reflectance Model From a Single Specular Highlight with Known Scene Geometry and Camera Pose?
    (The Eurographics Association, 2019) Hadj-Said, Souheil; Tamaazousti, Mohamed; Bartoli, Adrien; Fusiello, Andrea and Bimber, Oliver
    Recovering the scene's illumination from images is a crucial step in Augmented and Diminished Reality. We present an experimental investigation to assess the well-posedness of this problem (i) using a known scene geometry and camera pose and (ii) assuming that a local reflectance model such as Blinn-Phong's holds. Based on results on synthetic and real data, we establish two major observations. First, the problem of retrieving the full local reflectance model's parameters and light source position from the original image is ill-posed. Second, the specular parameters including the light source position can be stably estimated from the image's specular component using a single specular highlight region.
  • Thumbnail Image
    Item
    Visualization of Large Point Cloud in Unity
    (The Eurographics Association, 2019) Santana Núñez, José Miguel; Trujillo, Agustin; Ortega, Sebastián; Fusiello, Andrea and Bimber, Oliver
    Large point cloud rendering has become a very relevant topic on 3D graphics as scanners and other sources of 3D point data are nowadays available to companies and the general public. In this project, we propose an implementation of a point cloud viewer, designed for the full-detail visualization of virtually unlimited point clouds for their inspection on short ranges. This work presents the data structure and the LoD technique to achieve a real-time rendering of the model, making emphasis on the details of an initial prototype based on Unity.
  • Thumbnail Image
    Item
    Voxelizing Light-Field Recordings
    (The Eurographics Association, 2019) Schedl, David; Kurmi, Indrajit; Bimber, Oliver; Fusiello, Andrea and Bimber, Oliver
    Light fields are an emerging image-based technique that support free viewpoint navigation of recorded scenes as demanded in several recent applications (e.g., Virtual Reality). Pure image-based representations, however quickly become inefficient, as a large number of images are required to be captured, stored, and processed. Geometric scene representations require less storage and are more efficient to render. Geometry reconstruction, however, is unreliable and might fail for complex scene parts. Furthermore, view-dependent effects that are preserved with light fields are lost in pure geometry-based techniques. Therefore, we propose a hybrid representation and rendering scheme for recorded dense light fields: we extract isotropic scene regions and represent them by voxels, while the remaining areas are represented as sparse light field. In comparison to dense light fields, storage demands are reduced while visual quality is sustained.
  • Thumbnail Image
    Item
    Visual-auditory Representation and Analysis of Molecular Scalar Fields
    (The Eurographics Association, 2019) Malikova, Evgeniya; Adzhiev, Valery; Fryazinov, Oleg; Pasko, Alexander; Fusiello, Andrea and Bimber, Oliver
    The work deals with a visual-auditory representation and an analysis of static and dynamic continuous scalar fields.We propose a general approach and give examples of dynamic and static objects representations related to molecular data simulations. We describe the practical application and demonstrate how the approach may help to track geometrical features.
  • Thumbnail Image
    Item
    Enhanced Reconstruction of Architectural Wall Surfaces for 3D Building Models
    (The Eurographics Association, 2019) Michailidis, Georgios-Tsampikos; Pajarola, Renato; Fusiello, Andrea and Bimber, Oliver
    The reconstruction of architectural structures from 3D building models is a challenging task and a lot of research has been done in recent years. However, most of this work is focused mainly on reconstructing accurately the architectural shape of interiors rather than the fine architectural details, such as the wall elements (e.g. windows and doors). We focus specifically on this problem and propose a method that extends current solutions to reconstruct accurately severely occluded wall surfaces.
  • Thumbnail Image
    Item
    The Effects of Adaptive Synchronization on Performance and Experience in Gameplay
    (The Eurographics Association, 2019) Watson, Benjamin; Gavane, Ajinkya; Shrivastava, Rachit; Fusiello, Andrea and Bimber, Oliver
    As graphics (GPU) hardware has improved, fixed refresh rate displays became a significant throttle on graphics performance. GPU and display manufacturers therefore introduced adaptive synchronization (Async), which allows displays to adaptively synchronize to GPUs, avoiding rendering stalls and improving frame rate mean and variation. This research is a first experimental examination of the effects of Async on the experience of dedicated (but not professional) gamers. Participants played a first-person shooter (FPS) game, both with Async on and with Async off. After each game session, we assessed participant emotional state and gaming performance. We learned that at least for this popular FPS, Async can improve gaming performance, and may also benefit experience. We also found that Async has intriguing relationships to game familiarity and years of gameplay that merit additional investigation. Further research should examine these relationships, as well as Async's effects in systems with higher frame rates.