EG2008: Recent submissions

Now showing items 21-40 of 117

    • Compensation of the Light Attenuation with Depth of Images Captured by a Confocal Microscope Using a MRF Deformation Model and Graph Cuts 

      Capek, Martin; Michalek, Jan; Janacek, Jiri; Kubinova, Lucie; Hana, Karel; Smrcka, Pavel (The Eurographics Association, 2008)
      We study series of fluorescent optical sections, i.e. three-dimensional (3D) biomedical images, captured by a confocal laser scanning microscope (CLSM). Fluorescent image intensities of optical sections from deep layers ...

    • Efficient Spherical Harmonics Lighting with the Preetham Skylight Model 

      Habel, Ralf; Mustata, Bogdan; Wimmer, Michael (The Eurographics Association, 2008)
      We present a fast and compact representation of a skylight model for spherical harmonics lighting, especially for outdoor scenes. This representation allows dynamically changing the sun position and weather conditions on ...

    • Microquad Soft Shadow Mapping Revisited 

      Schwarz, Michael; Stamminger, Marc (The Eurographics Association, 2008)
      Recently, real-time soft shadow research saw many important contributions from the class of soft shadow mapping algorithms, where approximate occluder geometry is reconstructed from a shadow map and backprojected onto the ...

    • Shadowed Relighting of Dynamic Geometry with 1D BRDFs 

      Nowrouzezahrai, Derek; Kalogerakis, Evangelos; Simari, Patricio; Fiume, Eugene (The Eurographics Association, 2008)
      We present a method for synthesizing the dynamic self-occlusion of an articulating character in real-time (> 170Hz) while incorporating reflection effects from 1D BRDFs under dynamic lighting and view conditions. We ...

    • Rendering Method for Flat Origami 

      Mitani, Jun (The Eurographics Association, 2008)
      In flat Origami (Origami which is folded flat), some cases exist that have a closed-loop in the overlap order of faces after they are folded. It is difficult to display this shape correctly on the screen when Origami is ...

    • Volume Data Visualization Using Fractal Interpolation Surfaces 

      Manousopoulos, Polychronis; Drakopoulos, Vassileios; Theoharis, Theoharis (The Eurographics Association, 2008)
      Visualization of medical or experimental data is often achieved by extracting an intermediate geometric representation of the data. One such popular method for extracting an isosurface from volume data is the Marching Cubes ...

    • Improving Interaction Performance for Ray Tracing 

      Kurz, Daniel; Lux, Christopher; Springer, Jan P.; Froehlich, Bernd (The Eurographics Association, 2008)
      We have developed an approach for improving the performance of object manipulation in ray tracing systems. We assume that users alternate between navigating the scene and manipulating objects in the scene. We divide the ...

    • Interactive Stroke-Based NPR using Hand Postures on Large Displays 

      Grubert, Jens; Carpendale, Sheelagh; Isenberg, Tobias (The Eurographics Association, 2008)
      We explore the use of hand postures to interact with stroke-based rendering (SBR) on touch-sensitive large displays. In contrast to traditional WIMP interfaces, we allow people to directly engage with and influence a ...

    • Efficient Visualization of Architectural Models from a Structure and Motion Pipeline 

      Farenzena, Michela; Fusiello, Andrea; Gherardi, Riccardo (The Eurographics Association, 2008)
      State of the art three dimensional reconstruction pipelines can nowadays produce models up to several million polygons without any human intervention from a set of digital images or video. Such models are able to stretch ...

    • Laziness is a Virtue: Motion Stitching Using Effort Minimization 

      Li, Lei; McCann, James; Faloutsos, Christos; Pollard, Nancy (The Eurographics Association, 2008)
      Given two motion-capture sequences that are to be stitched together, how can we assess the goodness of the stitching? The straightforward solution, Euclidean distance, permits counter-intuitive results because it ignores ...

    • FMDistance: A Fast and Effective Distance Function for Motion Capture Data 

      Onuma, Kensuke; Faloutsos, Christos; Hodgins, Jessica K. (The Eurographics Association, 2008)
      Given several motion capture sequences, of similar (but not identical) length, what is a good distance function? We want to find similar sequences, to spot outliers, to create clusters, and to visualize the (large) set of ...

    • Contact Skinning 

      Duriez, Christian; Courtecuisse, Hadrien; Alcalde, Juan-Pablo de la Plata; Bensoussan, Pierre-Jean (The Eurographics Association, 2008)
      In this paper, we propose a new approach to model interactions through a skinning method. Skinning is a frequently used technique to animate a mesh based on skeleton motion. In the case of a hand motion sequence used to ...

    • Recognition of Human Actions using Layered Hidden Markov Models 

      Perdikis, Serafeim; Tzovaras, Dimitrios; Strintzis, Michael Gerasimos (The Eurographics Association, 2008)
      Human activity recognition has been a major goal of research in the field of human - computer interaction. This paper proposes a method which employs a hierarchical structure of Hidden Markov Models (Layered HMMs) in an ...

    • Mining Motifs from Human Motion 

      Meng, Jingjing; Yuan, Junsong; Hans, Mat; Wu, Ying (The Eurographics Association, 2008)
      Mining frequently occurring temporal motion patterns (motion motifs) is important for understanding, organizing and retrieving motion data. However, without any a priori knowledge of the motifs, such as their lengths, ...

    • Revealing Pentimenti Through Raking Angle Photography 

      Cheung, Chi Yin; Mohan, Ankit; Tumblin, Jack (The Eurographics Association, 2008)
      Discovering hidden details in historical paintings, such as pentimenti, can help reveal historical influences and changing intentions of an artist. Top-down photographs of visible light historical paintings do not capture ...

    • Video Carving 

      Chen, Billy; Sen, Pradeep (The Eurographics Association, 2008)
      We present a technique for summarizing a video into a short segment, while preserving the important events in the original. While many techniques remove whole frames from the video stream when condensing it, we observe ...

    • Removing Artifacts Due To Frequency-Domain Processing of Light-Fields 

      Intwala, Chintan; Georgeiv, Todor (The Eurographics Association, 2008)
      In previous works, light-field capture has been analyzed in spatio-angular representation. A light-field camera samples the optical signal within a single photograph by multiplexing the 4D radiance onto the physical 2D ...

    • Artificial Mosaics by Gradient Vector Flow 

      Battiato, Sebastiano; Blasi, Gianpiero Di; Gallo, Giovanni; Guarnera, Giuseppe Claudio; Puglisi, Giovanni (The Eurographics Association, 2008)
      In this paper a novel approach for artificial mosaic generation is proposed. Gradient Vector Flow computation together with heuristics to maximise the covered mosaic area are used. The high frequency details are managed ...

    • Real-Time Volumetric Tests Using Layered Depth Images 

      Trapp, Matthias; Doellner, Juergen (The Eurographics Association, 2008)
      This paper presents a new approach for performing efficiently 3D point-in-volume tests for solid and arbitrary complex shapes. It classifies a 3D point as inside or outside of a solid specified by 3D polygonal geometry. ...

    • Measuring and Enhancing the Legibility of GPU-rendered Text 

      Tycowicz, Christoph von; Loviscach, Joern (The Eurographics Association, 2008)
      Whereas the rendering of tiny typefaces in 2D applications has been perfected over decades, the legibility of text in 3D visualizations has rarely been addressed. This affects road signs, meters, screens, and books in ...