Newsgroups: sci.image.processing
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!news.mathworks.com!uhog.mit.edu!bloom-beacon.mit.edu!gatech!howland.reston.ans.net!torn!nott!emr1!rads!eldridge
From: eldridge@mda.ca (Norman Eldridge)
Subject: Re: Merging data:  SAR with TM, SPOT, ETC
X-Nntp-Posting-Host: rads.ccrs.emr.ca
Message-ID: <D1y57A.Jz6@emr1.emr.ca>
Sender: eldridge@rads (Norman Eldridge)
Organization: MDA Ottawa Engineering
References:  <1995Jan4.193349.29494@rsg1.er.usgs.gov>
Date: Thu, 5 Jan 1995 19:09:10 GMT
Lines: 60

In article <1995Jan4.193349.29494@rsg1.er.usgs.gov>, mmcdermo@usgs.gov writes:
|> If someone has information on research related to merging SAR data with
|> passive sensors I would appreciate a pointer.
|> 
|> I am aware of one paper:
|> 
|> AHS Solberg, AK Jain, and T Taxt; Multisource Classification of Remotely
|> Sensed Data:  Fusion of LANDSAT TM and SAR Images; IEEE Transactions on
|> Geoscience and Remote Sensing; Vol 32, #4; July 1994; pp 768-778.
|>  
|> Any others out there?
|> 
|> Thanks in advance.
|> 
|> Matthew H. McDermott
|> US Geological Survey
|> 526 National Center
|> Reston, VA  22092
|> 
|> 703-648-4654
|>        -4270 (fax)
|> 
|> mmcdermo@usgs.gov


In Canada, we have several researchers who are very familiar with remote sensing
for geological applications.  In addition, and at the risk of sounding like a 
sales pitch, considerable research has been carried out at the Canada Centre 
for Remote Sensing with respect to airborne and satellite based SAR, and 
SAR geological applications.

I suggest you contact Dr. Vern Singhroy at the Canada Centre for Remote 
Sensing in Ottawa, as well as look up various references which include him as 
author or co-author.  I also suggest you look up back issues in the Canadian
Journal of Remote Sensing (although circulation of this journal is somewhat
limited).

Hope this helps. 

A note of caution:
Please use caution when merging and interpreting optical (e.g. Landsat) and 
microwave (SAR) imagery, particularly in regions containing significant 
topographic relief.  SAR images contain layover features, which look like ridges
if interpreted as optical images. However, layover is essentially an artifact of
SAR processing the range data to a 'flat' surface.  The apparent ridges in SAR due
to layover actually represent the sides of hills facing more or less towards
the SAR platform.

--- Norman

------------------------------------------------------------------------
Norman R Eldridge	MacDonald, Dettwiler, & Associates
on-site contractor at: 	
Canada Centre for Remote Sensing, 
Scene Physics and Analysis Section 
588 Booth Street, Ottawa, ON, CANADA, K1A-0Y7

E-mail: eldridge@ccrs.emr.ca or eldridge@mda.ca
Tel: (613) 947-3133, Fax: (613) 947-1383
------------------------------------------------------------------------
