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GD
2009
Springer
15 years 12 months ago
4-Labelings and Grid Embeddings of Plane Quadrangulations
We show that each quadrangulation on n vertices has a closed rectangle of influence drawing on the (n − 2) × (n − 2) grid. Further, we present a simple algorithm to obtain a...
Lali Barrière, Clemens Huemer
ICIP
2000
IEEE
15 years 11 months ago
Hough Technique for Bar Charts Detection and Recognition in Document Images
Charts are common graphic representation for scientific data in technical and business papers. We present a robust system for detecting and recognizing bar charts. The system incl...
Yan Ping Zhou, Chew Lim Tan
SI3D
1997
ACM
15 years 11 months ago
Direct Haptic Rendering of Sculptured Models
A new tracing algorithm is described that supports haptic rendering of NURBS surfaces without the use of any intermediate representation. By using this tracing algorithm in conjun...
Thomas V. Thompson II, David E. Johnson, Elaine Co...
VISUALIZATION
1996
IEEE
15 years 11 months ago
Isosurfacing in Span Space with Utmost Efficiency (ISSUE)
We present efficient sequential and parallel algorithms for isosurface extraction. Based on the Span Space data representation, new data subdivision and searching methods are desc...
Han-Wei Shen, Charles D. Hansen, Yarden Livnat, Ch...
ICASSP
2007
IEEE
15 years 11 months ago
Multi-Channel Source Separation Preserving Spatial Information
In this paper we propose two novel methods for preserving the spatial information in source separation algorithms. Our approach is applicable to any source separation algorithm an...
Robert Aichner, Herbert Buchner, Meray Zourub, Wal...