mri | The MRI CNB provides the Matz 's Ruby Interpreter | Data Labeling library
kandi X-RAY | mri Summary
kandi X-RAY | mri Summary
The MRI CNB provides the Matz's Ruby Interpreter (or MRI). The buildpack installs MRI onto the $PATH which makes it available for subsequent buildpacks and in the final running container. It also sets the $GEM_PATH environment variable.
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Top functions reviewed by kandi - BETA
- Build builds a BuildFunc that will build a build func
- Detect returns a DetectFunc which detects a build plan .
- ParseVersion parses a buildpack version
- Builds packit .
- NewBuildpackYMLParser returns a new BuildpackYMLParser .
mri Key Features
mri Examples and Code Snippets
[[requires]]
# The name of the MRI dependency is "mri". This value is considered
# part of the public API for the buildpack and will not change without a plan
# for deprecation.
name = "mri"
# The version of the MRI dependency is not requir
Community Discussions
Trending Discussions on mri
QUESTION
I'm aware of the recent mimemagic issues, which I managed to resolve on one of my Rails projects by bundle updating to 0.3.7 - but for some reason, I can't resolve it on the project below.
I have a Rails 6 project which I'm setting up for the first time on a new laptop. My laptop doesn't have the correct Ruby setup, so I've added a Dockerfile to my project like so:-
Dockerfile
...ANSWER
Answered 2021-Mar-28 at 23:41bundle update --conservative mimemagic
QUESTION
I'm quite new to DICOM and I'm having difficulties in understanding the difference between rescaling and scaling factors.
To transform the stored values, in a MRI DICOM image, into a quantitatively meaningful image, it seems that I should use the Rescale Slope (0028, 1053)
and the Rescale Intercept (0028, 1052)
.
However, for the same transformation, some MRI manufacturers (e.g. Philips) provide an additional Private Tag - the Scale Slope
. In that case, the transformation requires the use of, not only the Rescale Slope
and Rescale Intercept
, but also the Scale Slope
.
I can't understand what exactly is this Scale Slope
. Can anyone please provide any help?
ANSWER
Answered 2021-Jun-08 at 17:04The Rescale Intercept (0028,1052)
and the Rescale Slope (0028,1053)
are standard DICOM tags.
As you already said in question, the Scale Slope
(probably (2005,100E)
) is a Private Tag - specific to the Equipment Manufacturer. So, only manufacturer may say something reliable about this.
Private tags do not have standard names; generally, manufacturers mention the details of private tags they created in their DICOM Conformance Statement or other similar document. They may also name the tag in that document. Please refer to this answer for more details.
Now, to your question -- what is the difference?
Considering what I said above, it is hard to answer this question. Meaning and usage of standard tags can be found in standards. It is not the case with private tags. You have to go through vendor specific documents to understand it in details (if they mention it in details).
Even so, a quick googling give me this and this. One of the post in thread discusses about usage of Scale Slope
in a mathematical formula.
If you open a PAR/REC header you will see the Phiips description of these values
//# === PIXEL VALUES =============================================================
//# PV = pixel value in REC file, FP = floating point value, DV = displayed value on console
//# RS = rescale slope, RI = rescale intercept, SS = scale slope
//# DV = PV * RS + RI FP = DV / (RS * SS)
and
Inputs:
R = raw stored value of voxel in DICOM without scaling
WS = RealWorldValue slope (0040,9225) "PhilipsRWVSlope"
WI = RealWorldValue intercept (0040,9224) "PhilipsRWVIntercept"
RS = rescale slope (0028,1053) "PhilipsRescaleSlope"
RI = rescale intercept (0028,1052) "PhilipsRescaleIntercept"
SS = scale slope (2005,100E) "PhilipsScaleSlope"
Outputs:
W = real world value
P = precise value
D = displayed value
Formulas:
W = R * WS + WI
D = R * RS + RI
P = D / (RS * SS)
QUESTION
I want to do a multiple imputation with IterativeImputer.
Here is the dataset (the original is from https://www.kaggle.com/jboysen/mri-and-alzheimers) :
The variables to impute are "educ" and "ses". As they are categorical I've choose to use a classifier (KNeighborsClassifier from sklearn). Predictors are continuous (except "sex").
This is the code :
...ANSWER
Answered 2021-Jun-05 at 18:31I just understood why it does not works. It's because IterativeImputer works only for continuous variables. So, apparently you can't apply multiple imputation for continuous variables with IterativeImputer. There is discussion about this here.
I saw it's possible to do simple imputation with categorical variables in python. However, it does not seem possible to do multiple imputation with this type of variables (anyway, I did not find).
QUESTION
I have been trying to feed a dataset of brain MRI images (IXI dataset) to a ConvNet, however, some of the images have 140 channels some others 150 channels. How can I make all the images have the same number of channels so that I won't run into trouble with a fixed CNN input shape? I am using nibabel lib for reading the .nii files.
EDIT: I don't have much knowledge about MRI images, what channels should be discarded?
...ANSWER
Answered 2021-May-29 at 05:56The obvious approach is definitely:
Find the minimum number of channels in the sample.
Discard all the other channels for any sample.
Now, the discarding can happen from the middle of the slice which will probably contain better details. But this is based on the specific domain.
Or, 2. you can select a mean from the number of channels. and try to discard for the images with higher number of channels and add a black slice for images with lower number of channels.
QUESTION
does anyone know why the error
"ERROR: While executing gem ... (Errno::EACCES)
Permission denied @ rb_sysopen - C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-1.2.3-x64-mingw32/lib/2.7/pg_ext.so"
appears while trying to install pg gem in Windows 10?
I tried running gem install pg with admin privileges in command prompt in my application folder, but it throws this error.. I also checked out site https://rubygems.org/gems/pg and there copied how to install pg via command line, and what to include in Gemfile.
Here is my gem file:
ANSWER
Answered 2021-Jun-01 at 01:05I'm assuming you've downloaded and installed PostgreSQL on your system. Use the following to point the gem to where postgres is installed. This is an example of what it'd look like on my system.
QUESTION
I need help with image preprocessing part. I have a MRI image of brain with Alzheimer's disease. I need to remove cranium (skull) from MRI and then crop that all the region which is around brain. How could I do that in python? with image processing. I have tried using openCV Thanks' a lot.
This is the code which I tried:
here the code
...ANSWER
Answered 2021-May-28 at 22:50Here is one approach in Python/OpenCV.
QUESTION
I'm trying to create an empty pandas.Dataframe with a Multi-Index that I can later fill columnwise with my data. I've looked at other answers (here and here), but they all work with data that does not fill in columnwise, or that is somehow connected in the different columns.
The information I want to be contained in the Multi-Index looks like this:
...ANSWER
Answered 2021-May-26 at 11:41QUESTION
Im running ruby version 2.6.1 with docker. Rake gem is version 13.0.1.
Whenever I tried docker-compose up, it always fails and throws this error everytime:
This error did not exist before.
ANSWER
Answered 2021-May-23 at 12:27I'm not really sure what happened and why but I tried doing this on my rails container and I was no longer receiving the said error.
docker-compose run --rm bash
cd to project directory
bundle install
QUESTION
I need to measure tumour volumes before and after a treatment. I want to construct the recording of the volumes by date efficiently and then analyse the tumour doubling time (the time the tumour takes to double in volume) using Pandas or similar. I am a surgeon and treat acoustic neuromas with Gamma Knife radiosurgery.The tumours typically grow at 1 to 2 mm each year in diameter. They are usually followed up with MRI scans until they show growth (in the UK) and are treated and are then followed up by MRI scans for 10 years at least.
I'm sure the data collection is relatively simple but want to optimise it for efficiency afterwards. I was thinking of just using Excel and then importing the CSV into Pandas. The spreadsheet needs to be simple because it will be on a network drive within the hospital accessible from any PC for a number of people to do the volumetric assessment. This is done by drawing around the tumour on individual slices of the MRI scan and then getting the MRI scan to compute the volume of the regions of interest.
I am fairly novice at Python and Pandas. The complexity for me will be to do the datetime calculations to look at pre-treatment growth, and then post treatment growth and calculate volume doubling times.
I need to do this for about 250 patients so the time-consuming element is the volumetric assessment. On average there will be 3 to 4 pre-treatment scans and up to 10 post-treatment scans, so the data frame will be 250 records with about 15 pairs of date and volume paired columns, or similar. Any suggestions welcome. I was just going to do it in FileMaker pro but I don't have a site license et cetera et cetera.
...ANSWER
Answered 2021-May-14 at 02:42A simple CSV data format, like the one shown below, will allow you easily capture and process data. Once captured, you can read this data into pandas with pandas.read_csv
QUESTION
I am more of a Java programmer and still somewhat new to development (2 years or so, can write Java code & web apps just fine) however the company I work for has 4 Rails applications and was asked to get this application working called CtrlPanel. I have been having to learn Ruby on Rails in order to help get this issue with this app fixed and get it working.
I have been working on this problem for over a week all day long every day and nothing I do is fixing it.
I fixed everything to the point the app comes up, web server runs serves the pages but all views are white screens as long as this application.html.haml file is present. I re-wrote the file with very basic bootstrap and it sort of works but nothing looks right. The problem seems to stem from 1 single like that simply says: = javascript_include_tag "application"
I have been all over the internet and have tried every single fix from changing coffee-script-source to v1.8.0 as I read Windows has an issue with newer rails and that file, I have tried every variation of changing it from application to default, and every type of ending you can think of no matter what I do it gives me this error message which I can not seem to find.
I am not even sure WHAT that line does, I assume it has to do with the new Google Maps API and I verified the key is valid and it was working before.
This is the error is it giving it says the line with "= javascript_include_tag" "application" giving error ExecJS::RuntimeError at / SyntaxError: [stdin]:1:1: unexpected //=
I am running a PC on Windows 10 20H2 x64 UEFI ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x64-mingw32] Rails 6.1.3
(I did also install Ubuntu on another machine and it gives the exact same error, also gives the same error on another Windows machine)
The app is working IF I delete the "application.html.haml" file and put in a skeleton basic version all of the other views start working but of course none of them look right no menus no bootstrap no nothing.
Here is the application.html.haml file.
ANSWER
Answered 2021-May-04 at 18:59I did finally figure out what this was.
The older versions of rails in this case v4.2.1 used the javascript_include_tag for the line that deals with application:
= javascript_include_tag "application"
In the newer versions of rails in my case v6.1.3.1 you have to use javascript_pack_tag
= javascript_pack_tag
This solved the issue and the views all started working. I did mention above I was working on a PC running Rails v6.1.3; however I noticed I didn't make it clear that I was also having to upgrade this program from Ruby v2.2.2 and Rails v4.2.1 to Ruby v 2.7.2 and Rails v6.1.3, that might have helped to have made that more clear. Apologies if that confused anyone. I am still VERY new to Rails and using StackOverflow.com. I am happy to report I have only 1 single issue left on this program and the rest of the program is all working properly. I will be posting another question in fact because the last issue deals with a complicated scope query and it uses different syntax again due to the newer version of rails and I haven't been able to figure it out. In any even if you are running an older version of Rails and you are trying to get the program to work on a newer version (my case as I couldn't get rails v4.2 to run or work on ANYTHING, PC, Linux nothing) then you have to change the include_tag to a pack_tag. I do not pretend to say I fully understand why. I know it has to do with webpacker but beyond that I am still learning Rails. Perhaps someone with more knowledge than myself can shed some insite as to why the syntax changed. Oh and in addition the line ended up needing to read as follows:
= javascript_pack_tag "application", "data-turbolinks-track": "reload"
I didn't have the turbolinks reference either.
I hope this helps someone else in a similar situation that I was in, it was not easy to find. I only discovered it when I went through some tutorials on making other generic apps and saw the difference on that line.
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