|
|
Extract from IGARSS
'98
The Optimal Gradient Matching
Method: Application to X-SAR and Magellan Stereo Images
by Ph. Paillou and M. Gelautz.
Abstract
: [...] we propose a new method for improving terrain
reconstruction from SAR stereo images. The method is based
on pre-processing the original images by employing an
optimal filter which supresses speckle noise and enhances
relief structures that are afterwards used by matching
process [...]
Algorithm : [...] It should be
noted that when dealing with gradient amplitude images
all pixels of the image are taken in account, as
opposed to the use of edge images, in which only the local
maxima of the gradient amplitude - that is a few pixels
- are employed for further processing [...]
Reference:
Ph. Paillou, 'Detecting Step Edges in Noisy SAR Images:
A New Linear Operator', IEEE Transactions on Geoscience
& Remote Sensing VOL 35 No.1, pp 191-196, 1997
|
