User profiles for Hamish Carr

Hamish Carr

University of Leeds
Verified email at leeds.ac.uk
Cited by 3800

Computing contour trees in all dimensions

H Carr, J Snoeyink, U Axen - Computational Geometry, 2003 - Elsevier
We show that contour trees can be computed in all dimensions by a simple algorithm that
merges two trees. Our algorithm extends, simplifies, and improves work of Tarasov and …

Flexible isosurfaces: Simplifying and displaying scalar topology using the contour tree

H Carr, J Snoeyink, M Van De Panne - Computational Geometry, 2010 - Elsevier
The contour tree is an abstraction of a scalar field that encodes the nesting relationships of
isosurfaces. We show how to use the contour tree to represent individual contours of a scalar …

[BOOK][B] Topological manipulation of isosurfaces

H Carr - 2004 - library-archives.canada.ca
In this thesis, I show how to use the topological information encoded manipulation of individual
contour surfaces in an isosurface scene, using an interface called the'flexible isosurface'. …

Simplifying flexible isosurfaces using local geometric measures

H Carr, J Snoeyink, M Van De Panne - IEEE Visualization 2004, 2004 - ieeexplore.ieee.org
The contour tree, an abstraction of a scalar field that encodes the nesting relationships of
isosurfaces, can be used to accelerate isosurface extraction, to identify important isovalues for …

Interactive comparison of scalar fields based on largest contours with applications to flow visualization

D Schneider, A Wiebel, H Carr… - … on Visualization and …, 2008 - ieeexplore.ieee.org
Understanding fluid flow data, especially vortices, is still a challenging task. Sophisticated
visualization tools help to gain insight. In this paper, we present a novel approach for the …

Topology-controlled volume rendering

GH Weber, SE Dillard, H Carr… - … on Visualization and …, 2007 - ieeexplore.ieee.org
Topology provides a foundation for the development of mathematically sound tools for
processing and exploration of scalar fields. Existing topology-based methods can be used to …

Combining an angle criterion with voxelization and the flying voxel method in reconstructing building models from LiDAR data

…, DF Laefer, T Hinks, H Carr - Computer‐Aided Civil …, 2013 - Wiley Online Library
Traditional documentation capabilities of laser scanning technology can be further exploited
for urban modeling through the transformation of resulting point clouds into solid models …

Crack detection limits in unit based masonry with terrestrial laser scanning

DF Laefer, L Truong-Hong, H Carr, M Singh - Ndt & E International, 2014 - Elsevier
This paper presents the fundamental mathematics to determine the minimum crack width
detectable with a terrestrial laser scanner in unit-based masonry. Orthogonal offset, interval …

Point cloud data conversion into solid models via point-based voxelization

T Hinks, H Carr, L Truong-Hong… - Journal of Surveying …, 2013 - ascelibrary.org
Automated conversion of point cloud data from laser scanning into formats appropriate for
structural engineering holds great promise for exploiting increasingly available aerially and …

Joint contour nets

H Carr, D Duke - IEEE Transactions on Visualization and …, 2013 - ieeexplore.ieee.org
Contour Trees and Reeb Graphs are firmly embedded in scientific visualization for analysing
univariate (scalar) fields. We generalize this analysis to multivariate fields with a data …