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Perceptual Quality of Point Clouds with application to Compression

Related publications (131)

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Image/video representation and scalable coding using redundant dictionaries

Adel Rahmoune

Compact or efficient representation for either images or image sequences is key operation to performing image and video processing tasks, such as compression, analysis, etc. The efficiency of an approximation is evaluated by the sparsity measure of the app ...

EPFL2005

Virtual reality exposure therapy for social phobia

Bruno Herbelin

This thesis presents researches and experiments performed in collaboration with a psychiatrist in order to validate and improve the use of virtual reality in social phobia psychotherapy. Cognitive and behavioral therapies are strongly based on the exposure ...

EPFL2005

Geometrical Image Denoising Using Quadtree Segmentation

Martin Vetterli, Rahul Shukla

We propose a quadtree segmentation based denoising algo- rithm, which attempts to capture the underlying geometrical structure hidden in real images corrupted by random noise. The algorithm is based on the quadtree coding scheme pro- posed in our earlier w ...

2004

Component-based methodology and development framework for virtual and augmented reality systems

Michal Ponder

The very recent revolutionary advancements and wide availability of the real-time 3D graphics technology results in the overwhelming and still quickly growing number of toolkits, game engines, and VR/AR frameworks, which offer very broad collections of fun ...

EPFL2004

Perspective accurate splatting

Mark Pauly

We present a novel algorithm for accurate, high quality point rendering, which is based on the formulation of splatting using homogeneous coordinates. In contrast to previous methods, this leads to perspective correct splat shapes, avoiding artifacts such ...

2004

Compression of 3D models with NURBS

Diego Santa Cruz Ducci

With recent progress in computing, algorithmics and telecommunications, 3D models are increasingly used in various multimedia applications. Examples include visualization, gaming, entertainment and virtual reality. In the multimedia domain 3D models have b ...

EPFL2003

Measuring Colourfulness in Natural Images

Sabine Süsstrunk, David Hasler

We want to integrate colourfulness in an image quality evaluation framework. This quality framework is meant to evaluate the perceptual impact of a compression algorithm or an error prone communication channel on the quality of an image. The image might go ...

2003

Stable Real-Time Interaction Between Virtual Humans and Real Scenes

Daniel Thalmann, Pascal Fua, Vincent Lepetit, Michal Ponder

We present an augmented reality system that relies on purely passive techniques to solve the real-time registration problem. It can run on a portable PC and does not require engineering of the environment, for example by adding markers. To achieve this res ...

IEEE Comput. Soc2003

Precision Isosurface Rendering of 3-D Image Data

Michaël Unser, Philippe Thévenaz

We address the task of rendering by ray tracing the isosurface of a high-quality continuous model of volumetric discrete and regular data. Based on first principles, we identify the quadratic B-spline as the best model for our purpose. The nonnegativity of ...

IEEE2003

Fully Automated and Stable Registration for Augmented Reality Applications

Daniel Thalmann, Pascal Fua, Vincent Lepetit

We present a fully automated approach to camera registration for augmented reality systems. It relies on purely passive vision techniques to solve the initialization and real-time tracking problems, given a rough CAD model of parts of the real scene. It do ...

2003