INSTICC organized the third edition of VISIGRAPP that took place in Funchal- Madeira, Portugal in January 2008 after successful previous editions. This book - cludes selected papers from VISIGRAPP 2008, the Joint Conference on Computer Vision Theory and Applications (VISAPP) and Computer Graphics Theory and - plications (GRAPP). The conference was intended to stimulate the exchange of ideas on the topics of c- puter vision and computer graphics. We received a high number of paper submissions: 374 in total for both conferences. We had contributions from more than 50 countries in all continents. This confirms the success and global dimension of these jointly organized conferences. After a rigorous double-blind evaluation method, 78 submissions were accepted as full papers. From those, 20 were selected for this book. To ensure the sci- tific quality of the contributions, these were selected from the ones that were evaluated with the highest scores by the VISIGRAPP Program Committee Members and then they were extended and revised by the authors. Special thanks go to all contributors and re- rees, without whom this book would not have been possible. VISIGRAPP 2008 also featured the comments of keynote speakers, in alphabetical order, Adrian Hilton (University of Surrey, UK), Geneviève Lucet (Computer S- vices for Research at the UNAM, Mexico), Peter Sturm (INRIA Rhône-Alpes, France) and Sharathchandra Pankanti (IBM - Exploratory Computer Vision Group, USA), who are internationally recognized researchers. The presentations represented an - portant contribution to the overall quality of the conference.

Contenu

Invited Papers.- Virtual Reality: A Knowledge Tool for Cultural Heritage.- Computer Graphics Theory and Applications.- Using Distance Information for Silhouette Preservation in Mesh Simplification Techniques.- Closed-Form Solutions for Continuous PCA and Bounding Box Algorithms.- An Importance Sampling Method for Arbitrary BRDFs.- Generalization of Single-Center Projections Using Projection Tile Screens.- Real-Time Generation of Interactive Virtual Human Behaviours.- CoGenIVE: Building 3D Virtual Environments Using a Model Based User Interface Design Approach.- Computer Vision Theory and Applications.- Fast Medial Axis Extraction Algorithm on Tubular Large 3D Data by Randomized Erosion.- Self-calibration of Central Cameras from Point Correspondences by Minimizing Angular Error.- Image Filtering Based on Locally Estimated Geodesic Functions.- Computation of Left Ventricular Motion Patterns Using a Normalized Parametric Domain.- Improving Geodesic Invariant Descriptors through Color Information.- On Head Pose Estimation in Face Recognition.- Edge-Based Template Matching with a Harmonic Deformation Model.- Implementation of a Model for Perceptual Completion in R 2×S 1.- Data Compression - A Generic Principle of Pattern Recognition?.- Hierarchical Evaluation Model: Extended Analysis for 3D Face Recognition.- Estimation of 3D Instantaneous Motion of a Ball from a Single Motion-Blurred Image.- Integrating Current Weather Effects into Urban Visualization.- Guided KLT Tracking Using Camera Parameters in Consideration of Uncertainty.- Automated Object Identification and Position Estimation for Airport Lighting Quality Assessment.