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Skin Detection for Hand Gesture Interfaces using Assimilative Background
(The Eurographics Association, 2006)
This paper describes the study realized about hand movement capture systems oriented to gesture interfaces. Thanks to this study we have developed a skin colour based hand detection application. The state of the art already ...
Simulating Film Grain using the Noise-Power Spectrum
(The Eurographics Association, 2007)
Film grain is an essential part of real images. The artifacts it introduces add character to images, which can otherwise appear too perfect. This paper considers the synthesis of film grain based upon its noise-power ...
Perceptual Level of Detail for Efficient Ray Tracing of Complex Scenes
(The Eurographics Association, 2005)
Rendering complex scenes in real time remains one of the major challenges in computer graphics. Recent research in perceptual rendering algorithms and level of detail techniques have shown that, by exploiting knowledge of ...
Perception-based painterly rendering: functionality and interface design
(The Eurographics Association, 2006)
Painterly rendering (non-photorealistic rendering or NPR) aims at translating photographs into paintings with discrete brush strokes, simulating certain techniques (im- or expressionism) and media (oil or watercolour). ...
Grid Architecture for Distributed Rendering
(The Eurographics Association, 2006)
Rendering is the process by means of which a raster 2D image can be obtained from the definition of a 3D scene. This process is computationally intensive and requires a lot of time to be done when the source scene has ...
Transferring Facial Expressions to Different Face Models
(The Eurographics Association, 2006)
We introduce a facial deformation system that helps the character setup process and gives artists the possibility to manipulate models as if they were using a puppet. The method uses a set of labels that define specific ...
Scanline Edge-flag Algorithm for Antialiasing
(The Eurographics Association, 2007)
In this paper, a novel algorithm for rendering antialiased 2D polygons is presented. Although such algorithms do exist, they are inefficient when comparing to non-antialiased alternatives. This has lead to a situation where ...
Individualizing the New Interfaces: Extraction of User's Emotions from Facial Data
(The Eurographics Association, 2006)
When developing new multimodal user interfaces emotional user information may be of great interest. In this paper we present a simple and computationally feasible method to perform automatic emotional classification of ...
Speeding Up Isosurfacing: The Matryoshka Algorithm
(The Eurographics Association, 2007)
We propose a hybrid algorithm for isosurface visualization that embraces both polygon rendering and direct surface rendering concepts. It uses raytracing to achieve high image quality but avoids the associated empty ray ...
Efficient focus+context visual exploration of volume datasets
(The Eurographics Association, 2006)
We propose a hierarchical representation of volume data sets based on a user-given definition of features. The model is general and it can be used for various types of feature definitions such as rendering queries, topological ...