Sciweavers

1152 search results - page 191 / 231
» Improving noise
Sort
View
JCM
2007
162views more  JCM 2007»
13 years 9 months ago
Opportunistic Spectrum Access in Fading Channels Through Collaborative Sensing
— Spectrum scarcity is becoming a major issue for service providers interested in either deploying new services or enhancing the capacity for existing applications. On the other ...
Amir Ghasemi, Elvino S. Sousa
JMIV
2007
99views more  JMIV 2007»
13 years 9 months ago
Image Similarity Based on Intensity Scaling
An image similarity measure based upon intensity scaling is investigated for the registration of images which differ in contast. The measure is introduced for both optical flow a...
Stephen L. Keeling
CAD
2004
Springer
13 years 9 months ago
Local topological beautification of reverse engineered models
Boundary representation models reconstructed from 3D range data suffer from various inaccuracies caused by noise in the data and by numerical errors in the model building software...
C. H. Gao, Frank C. Langbein, A. David Marshall, R...
IJCV
2000
195views more  IJCV 2000»
13 years 9 months ago
Optical Flow Constraints on Deformable Models with Applications to Face Tracking
Optical flow provides a constraint on the motion of a deformable model. We derive and solve a dynamic system incorporating flow as a hard constraint, producing a model-based least...
Douglas DeCarlo, Dimitris N. Metaxas
PAMI
2000
127views more  PAMI 2000»
13 years 9 months ago
Geometric Camera Calibration Using Circular Control Points
Modern CCD cameras are usually capable of a spatial accuracy greater than 1/50 of the pixel size. However, such accuracy is not easily attained due to various error sources that c...
Janne Heikkilä