[Ctk-developers] Fwd: 9th CTK Hackfest summary

Thu May 15 07:34:12 EDT 2014

Hi Yves, Aaron -

Thanks for the links!  We spent some time at the hackfest discussing and
thinking about the various approaches and definitely considered and were
motivated by the current ongoing projects like Cornerstone and dwv.
 Excellent work and it would great to collaborate.

Speaking for myself, and specifically about the DICOM object management, I
agree that a natively-written javascript version could be cleaner and more
efficient than cross-compiled C++.  But given that DICOM is exceptionally
complicated and infamous for non-conformant data 'in the wild', it may be a
while before new software can be written that has been battle hardened to
the extent of DCMTK.  Correct me if I'm wrong, but when you start to look
at things like RT, SR, and a host of other aspects of the standard I think
there's a lot of work to be done before Cornerstone or dwv have parity with
DCMTK.

So one way to look at things is that dcmjs is a transitional tool, that
allows Cornerstone and dwv to reap the benefits of decades of DCMTK
development without starting from scratch -- for example, you might use it
only as a fallback option on tricky cases.

Another way to look at it is that new developments can easily be deployed
in multiple scenarios.  For example, there's new work adding high-level
segmentation object support to DCMTK in C++.  Now with emscripten, the same
source code can be used either for heavy duty batch processing on a cluster
or for a lightweight viewer on a phone.  This should significantly improve
the maintainability since you only need one code base for both scenarios.

Also we were really happy at how relatively easy it was to take C/C++
projects and compile them for asm.js.  If you look at the emscripten
project, a real value appears to be there are tricky codebases like zlib,
pgp, png that are available for use from javascript without a tedious and
error-prone porting exercise.

With dcmjs we can focus on the fun parts of web based medical imaging
software and let DCMTK handle the trickiest parts of DICOM.

-Steve

On Thu, May 15, 2014 at 4:20 AM, Yves Martelli <yves.martelli at gmail.com>wrote:

> dcmjs looks very interesting!
> If you haven't had enough js, you can have a look at
> https://github.com/ivmartel/dwv...
> Best
>
>
> On 15 May 2014 04:16, Aaron Boxer <boxerab at gmail.com> wrote:
>
>>
>>
>> ---------- Forwarded message ----------
>> From: Aaron Boxer <boxerab at gmail.com>
>> Date: Wed, May 14, 2014 at 10:16 PM
>> Subject: Re: [Ctk-developers] 9th CTK Hackfest summary
>> To: Jean-Christophe Fillion-Robin <jchris.fillionr at kitware.com>
>>
>>
>> Regarding web access to DICOM images, you folks might be interested in
>> the new Cornerstone open source project:
>>
>> https://github.com/chafey/cornerstone
>>
>> A nice demo can be found here:
>>
>> http://chafey.github.io/cornerstoneDemo/
>>
>> Currently the demo only pulls canned DICOM images and displays them, but
>> it will shortly handle query/retrieve (via QIDO)
>> storage (via STOW), and local file viewing.
>>
>>
>> There is also a DICOM parser:
>>
>> https://github.com/chafey/dicomParser
>>
>> with examples here:
>>
>> https://rawgit.com/chafey/dicomParser/master/examples/index.html
>>
>>
>> Note that these are pure html/js libraries.
>>
>>
>> Cheers,
>> Aaron
>>
>>
>>
>>
>>
>>
>>
>> On Wed, May 14, 2014 at 3:50 PM, Jean-Christophe Fillion-Robin <
>> jchris.fillionr at kitware.com> wrote:
>>
>>> Hi CTK community,
>>>
>>> Few days ago, we were all at work in St Louis attending the 9th CTK
>>> hackfest hosted by Lawrence Tarbox and Dan Marcus from Mallinckrodt
>>> Institute of Radiology of the Washington University in St. Louis School of
>>> Medicine.
>>>
>>> You can read more about this great week here:
>>>
>>>        http://www.kitware.com/blog/home/post/676
>>>
>>>
>>>
>>> The content of the post (without hyperlinks) is also copied below:
>>>
>>>
>>> 8<-------8<-------8<-------8<-------8<-------8<-------8<-------8<-------8<-------
>>>
>>> Hosted by Lawrence Tarbox and Dan Marcus from Mallinckrodt Institute of
>>> Radiology of the Washington University in St. Louis School of Medicine, the
>>> 9th CTK hackfest was again a great success !
>>>
>>> During the week, the group of international and enthusiastic hackers
>>> addressed a large number of topics including DICOM support, CLIs, XNAT and
>>> also the CTK build and testing infrastructure.
>>>
>>> --==[ DICOM ]==-
>>>
>>> dcmjs.org - We created dcmjs - A javascript cross-compilation of dcmtk
>>> that can be re-used in a HTML5 compliant browser. It allows the analysis
>>> and the process of DICOM images directly within the browser. Two demos have
>>> been crafted: (1) dcmjs dump to “View the header of a dicom file” and (2)
>>> dcmjs view to "View the pixel data of a dicom file”
>>>
>>>
>>> WG27 - DICOM and Web technology - We discussed with Lawrence Tarbox
>>> about the possible direction to consider regarding the support of web
>>> technology in DICOM. Some notes and links have been reported here:
>>> http://www.commontk.org/index.php/CTK_DICOM_Web_Services
>>>
>>>
>>> CTK DICOM widgets have been improved to better support the Quantitative
>>> Image Informatics for Cancer Research project (QIICR). Details list of
>>> improvements is reported here:
>>> https://github.com/QIICR/ProjectIssuesAndWiki/wiki/Slicer-Infrastructure-Projects
>>>
>>>
>>> --==[ CLIs ]==-
>>>
>>> MedInria integration - In order to fully leverage the CLI framework, CTK
>>> has been integrated into the MedInria build system. The CLI plugin was also
>>> updated to the latest version of the medInria internal APIs, and
>>> preliminary work was done to integrate the CLI framework more natively into
>>> the medInria architecture. Checkout the list of frameworks that already
>>> integrated the CLI mechanism:
>>> http://www.commontk.org/index.php/CLI_In_Context.
>>>
>>> SlicerChronicle - A Slicer module that communicates with Chronicle has
>>> been prototyped. Chronicle is a scalable, distributed, standards-based
>>> database to support detailed descriptions of patient state and treatment
>>> scenarios in support of multi-system modelling. See
>>> https://github.com/pieper/SlicerChronicle
>>>
>>> --==[ XNAT ]==-
>>>
>>> CTK XNAT support has been extended and improved to fully leverage
>>> qRestAPI library capabilities. qRestAPI is simple Qt library allowing to
>>> synchronously or asynchronously query a REST server. Improvements include
>>> support for addition of new subjects, folders and data, as well as saving
>>> changed objects back to the XNAT server. Further, access to assessments,
>>> reports and forms was improved/added.
>>>
>>>
>>> --==[ CTK infrastructure ]==-
>>>
>>> Qt5 support - User pull requests updating both CTK and PythonQt have
>>> been consolidated and reviewed. In the coming weeks, corresponding work
>>> will be finalized and integrated into CTK.
>>>
>>> Back to “regular” CDash layout - When establishing the CTK
>>> infrastructure, we initially chose to “hijack” the capabilities of CDash to
>>> support subprojects to display build and test results of CTK internal
>>> libraries as subprojects. While the initial idea was ambitious, it
>>> complexified the underlying infrastructure and make the review of
>>> submissions more difficult. We decided to revert to a more traditional
>>> layout and present result on a single consolidated page.
>>>
>>> TravisCI - Work has been done to leverage the continuous integration
>>> platform TravisCI, when integrated. Every integration to CTK master branch
>>> will trigger a build and associated build and testing results will be
>>> uploaded to CDash.
>>>
>>> CTK Debian package - We continue our effort to provide CTK packages on
>>> Debian based linux distribution. Details reported here:
>>> http://www.commontk.org/index.php/Debian_Packaging
>>>
>>> Bug tracker - We reviewed the long standing issues and closed the one
>>> which were not relevant any more.
>>>
>>> This post was collaboratively edited and reviewed by the CTK hackers.
>>>
>>> 8<-------8<-------8<-------8<-------8<-------8<-------8<-------8<-------8<-------
>>>
>>> --
>>> +1 919 869 8849
>>>
>>> _______________________________________________
>>> Ctk-developers mailing list
>>> Ctk-developers at commontk.org
>>> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
>>>
>>>
>>
>>
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