756 search results - page 146 / 152 » Using topology for spatial reasoning |
ECCV
2008
Springer
15 years 11 months ago
2008
Springer
Abstract. We introduce a shape detection framework called Contour Context Selection for detecting objects in cluttered images using only one exemplar. Shape based detection is inva...
ECCV
1998
Springer
15 years 11 months ago
1998
Springer
Diffuse interreflections mean that surface shading and shape are related in ways that are difficult to untangle; in particular, distant and invisible surfaces may affect the shadi...
157
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GIS
2009
ACM
15 years 10 months ago
2009
ACM
In this paper we present algorithms for automatically generating a road network description from aerial imagery. The road network inforamtion (RNI) produced by our algorithm inclu...
162
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GIS
2004
ACM
15 years 10 months ago
2004
ACM
Aerial video provides strong cues for automatic road extraction that are not available in static aerial images. Using stabilized (or geo-referenced) video data, capturing the dist...
169
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GIS
2007
ACM
15 years 10 months ago
2007
ACM
Accurate and efficient integration of geospatial data is an important problem with applications in areas such as emergency response and urban planning. Some of the key challenges ...