28095 search results - page 155 / 5619 » D |
MDM
2009
Springer
15 years 6 months ago
2009
Springer
Topological relationships between spatial objects are an essential property of spatial objects. They are used for spatial analysis and query processing. In this paper, we first i...
133
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CSSE
2008
IEEE
15 years 6 months ago
2008
IEEE
—Image segmentation plays an important role in image analysis and computer vision system. Among all segmentation techniques, the automatic thresholding methods are widely used be...
141
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CW
2008
IEEE
15 years 6 months ago
2008
IEEE
—This paper describes an automatic 3D surface scanning technique using a 3D scanner. It allows the acquisition of a complete surface model of a 3D artifact without any manual reg...
ICASSP
2008
IEEE
15 years 6 months ago
2008
IEEE
We address the design and optimization of an energy-efficient lifting-based 2D transform for wireless sensor networks with irregular spatial sampling. The 2D transform is designe...
ICPR
2008
IEEE
15 years 6 months ago
2008
IEEE
In this paper, we design linear time algorithms to recognize and determine topological invariants such as genus and homology groups in 3D. These invariants can be used to identify...