Browsing VVG: Vision, Video, and Graphics by Title

Now showing items 36-55 of 67

    • Natural Image Matting 

      Hillman, Peter M.; Hannah, John M. (The Eurographics Association, 2005)
      Matte pulling - generating greyscale images which indicate segmentation of images into elements with subpixel accuracy and where blur causes pixels to be a mixture of elements - has received attention in recent years. Many ...

    • A New Framework for Trademark Retrieval Based on Size Functions 

      Cerri, A.; Ferri, M.; Giorgi, D. (The Eurographics Association, 2005)
      We propose a new, effective system for Content Based trademark retrieval, which involves Size Functions. Three different classes of shape descriptors are combined, for a total amount of 25 measuring functions. The evaluation ...

    • A Novel Form of Pointing Device 

      Cantzler, H.; Hoile, C. (The Eurographics Association, 2003)
      This paper presents a novel approach for man machine interaction applying real time computer vision techniques. We use a handheld camera to control the mouse cursor on a computer display. The camera captures an image of ...

    • On the Editing of Images: Selecting, Cutting and Filling-in 

      Labrosse, F. (The Eurographics Association, 2003)
      This paper is two-fold. On the one hand, we present a system using qualitative spatial reasoning to help a user choose parts of an image that form interesting objects. The system then allows the user to cut these parts as ...

    • On the Separation of Luminance from Colour in Images 

      Woodland, Alan; Labrosse, Frédéric (The Eurographics Association, 2005)
      Many computer vision and graphics related techniques rely upon illumination invariance of images to derive meaning from images of an object under varying lighting conditions. This is all the appearance-based methods. In ...

    • Organisation 

      Peter Hall and Philip Willis (The Eurographics Association, 2003)
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    • Parameter Acquisition of Geometric Primitives within Virtual Environments for Internet-Based Telerobotics 

      Tan, J.; Clapworthy, G. (The Eurographics Association, 2003)
      With the aim of improving the efficiency of on-line modelling of virtual environments (VEs) in Internet-based telerobotics (IBT), this paper addresses the modelling of geometric primitives using only a single view of them. ...

    • Prometheus: Facial Modelling, Tracking and Puppetry 

      Thorne, J.M.; Chatting, D.J. (The Eurographics Association, 2003)
      The Prometheus project sought to create a real-time production chain for 3D content. This paper summarises the techniques that were developed for facial modelling, tracking and puppetry. The process used for creating ...

    • Quasi-3D cell-based Animation 

      Qi, M.; Willis, P.J. (The Eurographics Association, 2003)
      We present a method for image compositing and rendering using 2D geometric shapes or raster images as input primitives, disposed in a 3D environment around which the camera can move. An animation system has been implemented ...

    • Real-Time Capture, Reconstruction and Insertion into Virtual World of Human Actors 

      Hasenfratz, J.M.; Lapierre, M.; Gascuel, J.-D.; Boyer, E. (The Eurographics Association, 2003)
      In this paper, we show how to capture an actor with no intrusive trackers and without any special environment like blue set, how to estimate its 3D-geometry and how to insert this geometry into a virtual world in real-time. ...

    • Real-Time Per-pixel Rendering of Bump-mapped Textures Captured using Photometric Stereo 

      Robb, M.; Spence, A.D.; Chantler, M.J.; Timmins, M. (The Eurographics Association, 2003)
      We present recent results from an EPSRC funded project VirTex (Virtual Textile Catalogues). The goal of this project is to develop graphics and image-processing software for the capture, storage, search, retrieval and ...

    • Realistic Real-Time Hair Simulation and Rendering 

      Jung, Yvonne; Rettig, Alexander; Klar, Oliver; Lehr, Timo (The Eurographics Association, 2005)
      We present a method for realistic rendering and simulation of human hair in real-time, which is suitable for the use in complex virtual reality applications. Neighbouring hairs are combined into wisps and animated with our ...

    • A Region Adjacency Tree Approach to the Detection and Design of Fiducials 

      Costanza, E.; Robinson, J. (The Eurographics Association, 2003)
      We report a topological approach to fiducial recognition for real-time applications. Independence from geometry makes the system tolerant to severe distortion, and allows encoding of extra information. The method is based ...

    • Regularised Anisotropic Nonlinear Diffusion for Rendering Refraction in Volume Graphics 

      Rodgman, David; Chen, Min (The Eurographics Association, 2005)
      Rendering refraction in volume graphics requires smoothly distributed normals to synthesise good quality visual representations. Such refractive visualisation is more susceptible to noise in the data than visualisations ...

    • A Rigid Transform Basis for Animation Compression and Level of Detail 

      Collins, G.; Hilton, A. (The Eurographics Association, 2005)
      We present a scheme for achieving level of detail and compression for animation sequences with known constant connectivity. We suggest compression is useful to automatically create low levels of detail in animations which ...

    • Rigorous Computing in Computer Vision 

      Farenzena, Michela; Fusiello, Andrea (The Eurographics Association, 2005)
      In this paper we discuss how Interval Analysis can be used to solve some problems in Computer Vision, namely autocalibration and triangulation. The crucial property of Interval Analysis is its ability to rigorously bound ...

    • Semi-Automated Logging for Professional Media Applications 

      Mateer, J.W.; Robinson, J.A. (The Eurographics Association, 2003)
      We report a novel method for logging and annotating video footage specifically for professional post-production and archivist end users. SALSA - Semi-Automated Logging with Semantic Annotation - is a hybrid system that ...

    • Sensitivity Analysis in Image Synthesis 

      Trujillo, M.; Izquierdo, E. (The Eurographics Association, 2005)
      Intermediate virtual images are used in the evaluation of disparity estimations. The analysis is based on the effect of disparity inaccuracies in the relative quality of virtual images. The peak-signal-to-noise ratio and ...

    • Studying the Fidelity Requirements for a Virtual Ballet Dancer 

      Neagle, R.J.; Ng, K.; Ruddle, R.A. (The Eurographics Association, 2003)
      Teaching dance, especially ballet, usually involves the phrase: 'watch, copy and learn' and improvement is made by emulation. This involves not only how to achieve the steps but also the quality of the movement. In this ...

    • SVD-Matching using SIFT Features 

      Delponte, Elisabetta; Isgrò, Francesco; Odone, Francesca; Verri, Alessandro (The Eurographics Association, 2005)
      The paper tackles the problem of feature points matching between pair of images of the same scene. This is a key problem in computer vision. Among the many possible applications of feature matching we are motivated for ...