[ITK-dev] ITK Software Guide

Wed Mar 28 09:35:28 EDT 2018

Matt,
do you plan to correct the actual document?
https://itk.org/ItkSoftwareGuide.pdf

In the text, in the section 4.1.4, pages 41 and 42 :"A pixel is considered to be the rectangular region surrounding the pixel center holding the datavalue. This can be viewed as the Voronoi region of the image grid, as illustrated in the right sideof the figure. Linear interpolation of image values is performed inside the Delaunay region whosecorners are pixel centers."

these statements "Voronoi region of the image grid" and "Delaunay region whose corners are pixed centers" - should go. 
the image 4.1 "Geometrical concepts associated with the ITK image",  should be redone too. In the image "Linear Interpolation Region Delaunay Region" and "Pixel Coverage Voronoi Region" must be replaced, 
This document is used and shared by many and should not include confusing terminology.
Thanks again,
Celina      From: Celina Imielinska <celina_imielinska at yahoo.com>
 To: Matt McCormick <matt.mccormick at kitware.com> 
 Sent: Wednesday, March 28, 2018 9:21 AM
 Subject: Re: [ITK-dev] ITK Software Guide

Matt,
thank you for the correction,
Celina

      From: Matt McCormick <matt.mccormick at kitware.com>
 To: Celina Imielinska <celina_imielinska at yahoo.com> 
Cc: Stephen Aylward <stephen.aylward at kitware.com>; Bradley Lowekamp <blowekamp at mail.nih.gov>; Insight Developers <Insight-developers at itk.org>; Luis Ibanez <luis.ibanez at gmail.com>
 Sent: Tuesday, March 27, 2018 5:23 PM
 Subject: Re: [ITK-dev] ITK Software Guide

Thank you for efforts to improve the work, Celina. The ITK Software Guide is a living document, and many students should continue to learn from the body of knowledge that Luis poured out many years ago.

Here is a patch for the figure:
  https://github.com/InsightSoftwareConsortium/ITKSoftwareGuide/pull/65
and the text:
  http://review.source.kitware.com/#/c/23300/

Thanks,Matt
On Tue, Mar 27, 2018 at 4:19 PM, Celina Imielinska <celina_imielinska at yahoo.com> wrote:

That would be appropriate

Thank you!
------------------------------ --------------
On Tue, 3/27/18, Matt McCormick <matt.mccormick at kitware.com> wrote:

 Subject: Re: [ITK-dev] ITK Software Guide
 To: "Celina Imielinska" <celina_imielinska at yahoo.com>
 Cc: "Stephen Aylward" <stephen.aylward at kitware.com>, "Bradley Lowekamp" <blowekamp at mail.nih.gov>, "Insight Developers" <Insight-developers at itk.org>, "Luis Ibanez" <luis.ibanez at gmail.com>
 Date: Tuesday, March 27, 2018, 2:45 PM

 Ah, I see
 now, Celina. Thanks for sharing the screenshots.
 How about removing the mention of
 Voronoi region and Delaunay region from that location in the
 text and changing the annotation in the text to "Pixel
 Centered Region" and "Pixel-Corner Centered
 Region"?
  -
 M
 On Tue, Mar 27, 2018 at
 2:22 PM, Celina Imielinska <celina_imielinska at yahoo.com>
 wrote:
 in
 the attached document
 page
 41in
 section4.1.4 
 Defining Origin and Spacing

  From: Matt McCormick
 <matt.mccormick at kitware.com>
  To: Celina Imielinska
 <celina_imielinska at yahoo.com>

 Cc: Stephen Aylward
 <stephen.aylward at kitware.com>;
 Bradley Lowekamp <blowekamp at mail.nih.gov>;
 Insight Developers <Insight-developers at itk.org>;
 Luis Ibanez <luis.ibanez at kitware.com>
  Sent: Tuesday, March
 27, 2018 2:09 PM
  Subject: Re: [ITK-dev]
 ITK Software Guide

 Hi Celina,
 I only
 see "Voronoi region" mentioned once
 here:
   https://github.com/
 InsightSoftwareConsortium/ ITKSoftwareGuide/blob/
 7eb1f6dda1e5bfe57938f53584113e e771b298a7/SoftwareGuide/
 Latex/DesignAndFunctionality/
 HybridSegmentationMethods.tex
 Perhaps we just replace
 "Voronoi region" with
 "region"?

 Other
 improvements to make the language more accurate / precise
 are welcome.

 Thanks,Matt

 On
 Tue, Mar 27, 2018 at 1:59 PM, Celina Imielinska <celina_imielinska at yahoo.com>
 wrote:

 Hello Matt,
 thank
 you for your email...
 I
 agree it - but this one of the fundamendat geometric
 constructs used in the Guide - that is just
 ill-named...
 How
 can we name it differently....  definitely, not as Voronoi
 region, nor Delaunay region (completely wrong)
 -let
 us discuss,
 Best,
 Celina
 From: Matt
 McCormick <matt.mccormick at kitware.com>
  To: Celina Imielinska
 <celina_imielinska at yahoo.com>

 Cc: Stephen Aylward
 <stephen.aylward at kitware.com>;
 Bradley Lowekamp <blowekamp at mail.nih.gov>;
 Insight Developers <Insight-developers at itk.org>;
 Luis Ibanez <luis.ibanez at kitware.com>
  Sent: Tuesday, March
 27, 2018 1:48 PM
  Subject: Re: [ITK-dev]
 ITK Software Guide

 Hi Celina,
 Improvements to the Software Guide
 are welcome. Please see the README here on how to
 contribute:
   https://github.com/
 InsightSoftwareConsortium/
 ITKSoftwareGuide
 Thanks,Matt
 On
 Tue, Mar 27, 2018 at 1:42 PM, Celina Imielinska via
 Insight-developers <insight-developers at itk.org>
 wrote:

 Dear
 All
 (I
 have emailed separately Bill Schroeder at Kitware)
 I
 am very happy that ITK Toolkit has been thriving over so
 many years. Kitware has done amazing job to maintain it and
 to expand it.
 Still,
 I am trying to contact the main co-authors of the currect
 ITK Software Guide.
 I
 am writing about the usage of "Voronoi Region"
 terminology in the recent editions of the ITK Software guide
 - that is very odd and not in agreement with how Voronoi
 Diagram, that is one of the fundamental geometric
 structures, is defined:https://www.cs.ucsb. edu/~suri/
 cs235/Voronoi.pdf

 Could
 you please email me -  I would like to suggest that if we
 want to use as "geometrical concepts associated with
 the ITK image" "Voronoi region" in a form
 what I consider a degenerative representation of  it - then
 maybe it would be wise to name it differently. Not to
 mention the usage of another oddity:  Delaunay Region -
 what is it? Voronoi Diagram and its dual, Delaunay
 Triangulation are classic geometric constructs that require
 that the points, in the Voronoi diagram, the Voronoi points,
 satisfy:
 "Non-degeneracy
 Condition: Assume no 4 cocircular points, and no 3
 collinear."
 This
 is violated in the construct included in the Guide and
 referred to as Voronoi Region and Delaunay Region.
 I
 don't mind that the guide is not including any more my 
 original hybrid segmentation contribution that included
 Voronoi Diagram classification https://core. ac.uk/download/
 pdf/27299860.pdfI
 woudl like to ask you to discuss what can be done with
 possibly correctingthe odd terminology,
 looking
 forward to hear from 
 Best
 Regards,
 Celina
 Imielinska
 Celina
 Imielinska, PhDPrincipalVesalius
 Technologies LLCPrinceton
 NJcelina_imielinska at yahoo. com609 240 4721
 PS.
 old version http://www.sci.utah.
 edu/publications/ibanez03/
 ItkSoftwareGuide.pdf 
      newest https://itk.org/
 ItkSoftwareGuide.pdf
 The ITK community is transitioning from this
 mailing list to discourse.itk.org.
 Please join us there!

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