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Automatic Raster to vector Conversion

Posted on 2003-03-10
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Last Modified: 2010-04-06
Hello
I want to develop a software for automatic raster to vector conversion. The available softwares work well with traced maps. What I want is to develop a software that takes as input a raster image, and produces an output of a vector image with minimum loss of data. U? can even use a knowledge base for the purpose.
The approach I thought of is to first detect the edges, then go for segmentation if required and then go for pattern recognition. The output is essentially is a set of lines, pilylines and polygons. I can use the knowledge base in this way:
First it checks if the image is geo-referenced. If so, then it checks in the knowledge base if data about the same latitude/longitude is present in the database. If data about that location is present in the database then the algorithm sees if there is a change in the location, and the system should be intelligent enough to check if the change is a noise or is there really a change in the location on earth. Can anyone suggest me in what other ways the knowledge base can be used and what should be stored in the knowledge base ??
Let me mention that the images I am talking of are aerial or satellite images.
Also, give me suggestions as to how to approach the problem ??

Thanking u in advance
Manirup Sinha
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Question by:manirup
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10 Comments
 
LVL 1

Author Comment

by:manirup
ID: 8108625
it seems nobody is interested. am i talking to myself??

0
 
LVL 4

Expert Comment

by:dearsina
ID: 8194745
Perhaps you'd better try your luck with developers, most people here do graphics...

sina
london
0
 

Expert Comment

by:subhadeepin
ID: 8200293
but i don't know how to shift the question from this topic to another. Do I have to sacrifice the 350 points.
Manirup
0
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Expert Comment

by:subhadeepin
ID: 8200788
Hi Can anyone tell me how to delete this question and still get back the points ??
Manirup
0
 
LVL 1

Author Comment

by:manirup
ID: 8200833
Hi CAN ANYONE TELL ME HOW TO DELETE THIS question and still get back the points?
Maniup
0
 
LVL 4

Expert Comment

by:dearsina
ID: 8201657
give it to someone you trust and get it back from them with them asking another question worth the same amount...

sina
london

0
 
LVL 1

Author Comment

by:manirup
ID: 8202314
Thanks sina.
Manirup
0
 

Expert Comment

by:urs_rahul
ID: 8202577
go to www.gisdev.net. u can find a lot of research papers that may help u.
Bye
Rahul
0
 

Accepted Solution

by:
urs_rahul earned 1400 total points
ID: 8202590
sorry, it is www.gisdevelopment.net
Rahul
0
 

Expert Comment

by:Packo1
ID: 8601850
I have been interested in this issue for a couple of years as it relates to the capture of vector data for use in the population and updating of a Topographic Database ( a currently expensive exercise in resource) I believe that it could or should be possible to use say aerial photographs or orthorectified photographs and extract features for:
1) inclusion into a database and/or
2) updating a database.
I have some ideas on an approach and am extremely interested in tyhe approach mentioned here.
Is there any other organisation that has shown interest in this particular aspect?


Ian
0

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