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IMAMS
2007
133views Mathematics» more  IMAMS 2007»
13 years 10 months ago
Tuning Subdivision Algorithms Using Constrained Energy Optimization
In this paper a method is presented to fair the limit surface of a subdivision algorithm around an extraordinary point. The eigenvalues and eigenvectors of the subdivision matrix d...
Ingo Ginkel, Georg Umlauf
CAGD
1999
198views more  CAGD 1999»
13 years 8 months ago
Discrete Coons patches
We investigate surfaces which interpolate given boundary curves. We show that the discrete bilinearly blended Coons patch can be defined as the solution of a linear system. With t...
Gerald E. Farin, Dianne Hansford
ICIP
2010
IEEE
13 years 6 months ago
Object detection and segmentation on a hierarchical region-based image representation
In this paper we present a general framework for object detection and segmentation. Using a bottom-up unsupervised merging algorithm, a region-based hierarchy that represents the ...
Verónica Vilaplana, Ferran Marqués, ...
ESA
2009
Springer
77views Algorithms» more  ESA 2009»
14 years 3 months ago
Short Labels for Lowest Common Ancestors in Trees
We evaluate the practical performance of labeling schemes for lowest common ancestors in trees. We develop different variants for encoding the labels. We then perform a thorough e...
Johannes Fischer
ICCV
2009
IEEE
1335views Computer Vision» more  ICCV 2009»
15 years 2 months ago
Top-Down Color Attention for Object Recognition
Generally the bag-of-words based image representation follows a bottom-up paradigm. The subsequent stages of the process: feature detection, feature description, vocabulary cons...
Fahad Shahbaz Khan, Joost van de Weijer, Maria Van...