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ICPR
2008
IEEE
14 years 5 months ago
Automatic extraction of natural fracture traces from borehole images
Natural fractures may greatly affect wellbore stability and fluid flow in oil reservoirs. The detection of fracture heterogeneities—also named fracture traces—on electrical im...
Josselin Kherroubi
3DIM
2007
IEEE
14 years 5 months ago
Orientation of Image Sequences in a Point-based Environment Model
In this paper we propose a method to determine the exterior orientation of each frame of an intensity image sequence using prior knowledge of the scene stored in a pointbased envi...
Jan Böhm
ICIP
1998
IEEE
15 years 12 days ago
Lip Features Automatic Extraction
An algorithm for speaker's lip segmentation and features extraction is presented in this paper. A color video sequence of speaker's face is acquired, under natural light...
Franck Luthon, Marc Liévin
AAAI
2006
14 years 8 days ago
Salience in Orientation-Filter Response Measured as Suspicious Coincidence in Natural Images
Visual cortex neurons have receptive fields resembling oriented bandpass filters, and their response distributions on natural images are non-Gaussian. Inspired by this, we previou...
Subramonia Sarma, Yoonsuck Choe
MM
2006
ACM
166views Multimedia» more  MM 2006»
14 years 4 months ago
Automatic document orientation detection and categorization through document vectorization
This paper presents an automatic orientation detection and categorization technique that is capable of detecting the orientation of multilingual documents with arbitrary skew and ...
Shijian Lu, Chew Lim Tan