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» Converting Level Set Gradients to Shape Gradients
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ICPR
2008
IEEE
14 years 8 months ago
A covariance-based method for dynamic background subtraction
Background subtraction in dynamic scenes is an important and challenging task. In this paper, we present a novel and effective method for dynamic background subtraction based on c...
Hongxun Yao, Shaohui Liu, Shengping Zhang, Wen Gao...
TOG
2008
135views more  TOG 2008»
13 years 7 months ago
Where do people draw lines?
This paper presents the results of a study in which artists made line drawings intended to convey specific 3D shapes. The study was designed so that drawings could be registered w...
Forrester Cole, Aleksey Golovinskiy, Alex Limpaech...
GRAPHITE
2005
ACM
14 years 1 months ago
Generalized sweep templates for implicit modeling
A technique is presented for generating implicit sweep objects that support direct specification and manipulation of the surface with no topological limitations on the 2D sweep t...
Ryan Schmidt, Brian Wyvill
VVS
1996
IEEE
202views Visualization» more  VVS 1996»
13 years 11 months ago
Direct Volume Rendering with Shading via Three-Dimensional Textures
A new and easy-to-implement method for direct volume rendering that uses 3D texture maps for acceleration, and incorporates directional lighting, is described. The implementation,...
Allen Van Gelder, Kwansik Kim
HVEI
2009
13 years 5 months ago
Improved colour to greyscale via integrability correction
The classical approach to converting colour to greyscale is to code the luminance signal as a grey value image. However, the problem with this approach is that the detail at equil...
Mark S. Drew, David Connah, Graham D. Finlayson, M...