812 search results - page 31 / 163 » Edge detection using wavelets |
ICCV
1998
IEEE
14 years 11 months ago
1998
IEEE
We devise a statistical framework for edge detection by performing a statistical analysis of zero crossings of the second derivative of an image. This analysis enables us to estim...
ICIP
2008
IEEE
14 years 4 months ago
2008
IEEE
One of the important steps in gradient-based edge detection is thresholding, e.g., hysteresis thresholding in the Canny detector. Traditional approaches use gradient magnitude as ...
ICIC
2007
Springer
14 years 4 months ago
2007
Springer
Inspired by the behaviour of biological receptive fields and the human visual system, a network model based on spiking neurons is proposed to detect edges in a visual image. The st...
ICCV
2003
IEEE
14 years 11 months ago
2003
IEEE
The boundaries of image regions necessarily consist of edges (in particular, step and roof edges), corners, and junctions. Currently, different algorithms are used to detect each ...
ALT
2007
Springer
14 years 6 months ago
2007
Springer
We consider the problem of learning and verifying hidden graphs and their properties given query access to the graphs. We analyze various queries (edge detection, edge counting, sh...