Edge Detection And Segmentation Using Khorus And PV-WAVE

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3 total messages Started by Ahmed Nadeem Mon, 25 Jan 1993 00:38

#923

Author: Ahmed Nadeem
Date: Mon, 25 Jan 1993 00:38

13 lines
1412 bytes

Netters,
        I am currently working on a research project that involves generating
solid or geometric models from MRI images. Part of the procedure will require 
me to possibly perform Thresholding & Edge Detection on my MRI images in order
to find out which pixels lie on boundaries between two different regions. 
Thus, I would like to have an Image Processing Software package that has good 
Edge Detection and Classification ( Segmentation ) modules/routines.  
        I have heard a lot about Khoros ( University Of New Mexico) and 
PV-WAVE (Precision Visuals) and was curious if other professionals or students
had any experience on how good they are for the above purposes. Suggestions 
on other software packages are also much welcome.
                                                       Thanks,
                                                              Ahmed Nadeem

Re: Edge Detection And Segmentation Using Khorus And PV-WAVE

#1002

Author: Se kumarakulasinghe
Date: Wed, 27 Jan 1993 01:43

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In article <ANADEEM.93Jan24173844@ampere.sci.image.processing> anadeem@ampere.sci.image.processing (Ahmed Nadeem) writes:
>Netters,
Image Processing Software package that has good 
>Edge Detection and Classification ( Segmentation ) modules/routines.  
>        I have heard a lot about Khoros ( University Of New Mexico) and 
>PV-WAVE (Precision Visuals) and was curious if other professionals or students
>had any experience on how good they are for the above purposes.
Bcc: 

Hi,

Theres a FTP site with a whole number of IDL routines.
The site is fermi.jhuapl.edu
          and in directory idl-pvwave/jhuapl

Ive run a couple of these on PV-Wave a they work fine.  They are really
well written programs, nice modular form and well documented. I do not 
know if it has edge detection programs, however the possibility is high.

Barr Kum

Re: Edge Detection And Segmentation Using Khorus And PV-WAVE

#1015

Author: Jim Brakefield
Date: Wed, 27 Jan 1993 14:05

31 lines
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In article <ANADEEM.93Jan24173844@ampere.sci.image.processing>  
anadeem@ampere.sci.image.processing (Ahmed Nadeem) writes:
> Netters,
>         I am currently working on a research project that involves  
generating
> solid or geometric models from MRI images. Part of the procedure will  
require 
> me to possibly perform Thresholding & Edge Detection on my MRI images in  
order
> to find out which pixels lie on boundaries between two different  
regions. 
> Thus, I would like to have an Image Processing Software package that has  
good 
> Edge Detection and Classification ( Segmentation ) modules/routines.  
>         I have heard a lot about Khoros ( University Of New Mexico) and 
> PV-WAVE (Precision Visuals) and was curious if other professionals or  
students
> had any experience on how good they are for the above purposes.  
Suggestions 
> on other software packages are also much welcome.
>                                                        Thanks,
>                                                               Ahmed  
Nadeem

I have implemented "steerable filters" (Freeman & Adelson, PAMI Sept.  
1991)
using PV~WAVE.  Filtering via convolution in frequency domain.  I only
implemented line element rather than edge detection & location.

You should checkout the MegaWave package from France.  It does anisotropic
blurring (Saint-Marc, Chen, & Medioni; PAMI June 1991).

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