Computer vision supported by 3D geometric modelling

A Handheld Projector Supported by Computer Vision

This paper describes the use of computer vision to support the operation of a handheld projector, and describes four applications. Projectors in the past have been used as fixed devices, but the latest generation of ’pocket projectors’ is small and portable. We demonstrate the feasibility of using a projector held in the hand, and the types of applications that can be done with a handheld proje...

Geometric Computer Vision

Geometric Optimization for Computer Vision

Drawing ideas from differential geometry and optimization, this thesis presents novel parameterization-based framework to address optimization problems formulated on a differentiable manifold. The framework views the manifold as a collection of local coordinate charts. It involves successive parameterizations of a manifold, carrying out optimization of the local cost function in parameter space...

Geometric reasoning for computer vision

Some general principles are formulated about geometric reasoning in the context of model-based computer vision. Such reasoning tries to draw inferences about the spatial relationships between objects in a scene based on the fragmentary and uncertain geometric evidence provided by an image. The paper discusses the tasks the reasoner is to perform for the vision program, the basic competences it ...

Panoramic and 3D Computer Vision

Image sensor technology provides in recent years the tools for wideangle and high-resolution 3D recording, analysis and modeling of static or dynamic scenes, ranging from small objects such as artifacts in a museum to large-scale 3D models of a castle or 3D city maps, also allowing real time 3D data acquisition from a moving platform, such as in vision-based driver assistance. The paper documen...