Konrad Karner

METROPOGIS: The next generation (2007)

Zebedin, Lukas, Klaus, Andrea, Gruber, Barbara, Karner, Konrad

This paper describes a highly automatic work flow for urban model generation from digital aerial imagery. The images used in our approach feature one high resolution panchromatic channel and four...

Robust Range Image Registration (2004)

Joachim Bauer, Konrad Karner, Andreas Klaus, Roland Perko

This paper presents a method for the registration of range image pairs that were captured from di#erent locations. The proposed approach assumes that a common 3D plane is least visible in both scans....

Hierarchical Disparity Estimation with Programmable 3D Hardware (2003)

Christopher Zach, Konrad Karner, Horst Bischof

This work presents an implementation of a hierarchical disparity estimation algorithm entirely executed on programmable 3D graphics hardware. In contrast to previous hardware based implementations of...

An Edgel-Based Two Step Approach for Simultaneous (2003)

Andreas Klaus, Joachim Bauer, Konrad Karner

In this paper we report on a new edgel-based matching approach. High performance is reached using the gradient information of textured regions only and by applying a two step approach. The...

Hierarchical Disparity Estimation with Programmable 3D Hardware (2003)

Christopher Zach, Konrad Karner, Horst Bischof

This work presents an implementation of a hierarchical disparity estimation algorithm entirely executed on programmable 3D graphics hardware. In contrast to previous hardware based implementations of...

Fast Event-Driven Refinement of Dynamic Levels of Detail (2003)

Christopher Zach, Konrad Karner

Dynamic levels of detail allow fine grained selection of actually rendered geometry suitable for the current viewing parameters. Therefore, the visual quality of interactive 3D applications is...

Optimized Stereo Reconstruction Using 3D Graphics Hardware (2003)

Christopher Zach, Andreas Klaus, Bernhard Reitinger, Konrad Karner

In this paper we describe significant enhancements of our recently developed stereo reconstruction software exploiting features of commodity 3D graphics hardware. The aim of our research is the...

Metropogis: A Semi-Automatic City Documentation System (2003)

Andreas Klaus, Joachim Bauer, Konrad Karner, Konrad Schindler

In this paper we report on a new system to augment a 3D block model of a real city with geo-referenced terrestrial images of the facades. The terrestrial images are taken by a hand-held digital...

Texture Mapping for View-Dependent Rendering Mario Sormann (2003)

Mario Sormann, Christopher Zach, Konrad Karner

View-dependent multiresolution meshes allow smooth interactive animation and optionally time-critical rendering of huge geometric data-sets and are therefore an important tool for large-model...

Progressive Compression Of Visibility Data For View-Dependent Multiresolution Meshes (2003)

Christopher Zach, Konrad Karner

In this paper we present a lossless and optionally lossy compression method for precomputed visibility data for view-dependent multiresolution meshes, which supports out-of-core rendering and...

High Quality Texture Reconstruction from Multiple Views (2002)

Alexander Bornik, Konrad Karner, Joachim Bauer, Franz Leberl, Heinz Mayer

This paper presents a method to automatically calculate texture maps for a given three-dimensional object out of a sequence of images. It is used in our image-based modeling approach after the...

Progressive Compression Of Visibility Data For View-Dependent Multiresolution Meshes (2002)

Christopher Zach, Konrad Karner

In this paper we present a lossless and optionally lossy compression method for precomputed visibility data for view-dependent multiresolution meshes, which supports out-of-core rendering and...

Dam Flooding Simulation Using Advanced CFD Methods (2002)

Mohamed Gouda, Dr. Konrad Karner, Dr. Reinhard Tatschl

Flooding, be they natural or caused by dam breaking, are a threat to mankind civilization all over the world. Today, the need for more and more water storage and electricity as a modern sources of...

Modeling and Visualizing the Cultural Heritage Data Set of Graz (2002)

Christopher Zach, Andreas Klaus, Joachim Bauer, Konrad Karner, Markus Grabner

The inner city (Old Town) of Graz will be the European cultural capital in 2003. In this paper we present preliminary results on the reconstruction and visualization of this kind of cultural heritage...

Time-critical Rendering of Discrete and Continuous Levels of Detail (2002)

Paul Debevec, Simon Gibson (editors, Christopher Zach, Stephan Mantler, Konrad Karner

We present a novel level of detail selection method for real-time rendering, that works on hierarchies of discrete and continuous representations. We integrate point rendered objects with polygonal...

Prefetching Policies For Remote Walkthroughs (2002)

Christopher Zach, Konrad Karner

We present a 3D data streaming approach for remote walkthroughs, that integrates local optimization techniques for realtime rendering with prefetching techniques for remote scene graphs. Especially...

From Real Cities to Virtual Habitats (2002)

Christopher Zach, Andreas Klaus, Joachim Bauer, Konrad Karner

This paper outlines the workflow from terrestrial and aerial images of urban areas to the reconstructed virtual models and the corresponding visualization. We combine new ideas as well as known...

Multiresolution Texture for Photorealistic Rendering (2002)

Heinz Mayer, Alexander Bornik, Joachim Bauer, Konrad Karner, Franz Leberl

This paper presents a method to automatically calculate texture maps for a given 3-dimensional object out of a sequence of images. It is used in our image-based modeling approach after the...

Multiresolution Texture for Photorealistic Rendering Heinz Mayer (2001)

Heinz Mayer, Alexander Bornik, Joachim Bauer, Konrad Karner, Franz Leberl

This paper presents a method to automatically calculate texture maps for a given 3-dimensional object out of a sequence of images. It is used in our image-based modeling approach after the...

METROPOGIS: The next generation (1970)

Lukas Zebedin, Andrea Klaus, Barbara Gruber, Konrad Karner

This paper describes a highly automatic work flow for urban model generation from digital aerial imagery. The images used in our approach feature one high resolution panchromatic channel and four...

METROPOGIS: The next generation (1970)

Lukas Zebedin, Andrea Klaus, Barbara Gruber, Konrad Karner

This paper describes a highly automatic work flow for urban model generation from digital aerial imagery. The images used in our approach feature one high resolution panchromatic channel and four...