Hi I'm just a Matlab hobbyist, this project seemed very interesting, I'm just wondering what the proper way is to run this project.

Thanks

HI again,
So I was running this project, first I get an error at line 207 in main.m

I get the error
error: matrix cannot be indexed with .
error: called from
    main at line 207 column 1
error: evaluating argument list element number 1
error: called from
    main at line 207 column 1

So then I change
for sid = unique(nodule_detection_evaluation.sid)'
to
for sid = unique(nodule_detection_evaluation)'
Then this is where I'm having trouble understanding the design of the project.
So when I input about 133 LIDC_IDRC images (DICOM) like this

path_nodule = [pwd '/output_data']; %pwd : returns the current directory
path_data = [pwd '/Users/aneeshers/Documents/LIDC-DRI/DICOM']; %dcm files directory

This than results to
nodule_detection_summary = [](0x0)
Which doesn't sound right. So after experimenting different paths and what not, I decided to see what happens when no path is given like so
path_data = [pwd '']; %dcm files directory
Which also gave me the same result!
So then I concluded that it was not the right place to out the path, I tried it in the output path because of the name path_nodule. But that also did not work out well. So then I start retracing the input which looks like it is
filename_input = [ct_img_path pid '_input.mat'];
What I don't understand is what the pids is and what it is for? I opened it in the output file generated, which just shows

# Created by Octave 4.0.3, Thu Dec 29 22:48:06 2016 EST <[email protected]>
# name: dicom_path_list
# type: cell
# rows: 0
# columns: 0


# name: pid_list
# type: cell
# rows: 0
# columns: 0

So yea that's so far that's been in my mind, then I tested the dicom read function by immediately assigning
ipath = '/Users/aneeshers/Documents/LIDC-DRI/DICOM'
I'm still testing this part......
## So what would be the appropriate way to input the data? Is it possible to show me an example of your dicom_pid_list.mat?

Thank you so much for your time and effort, Aneeshers

mathworks.com/help/matlab/ref/table.html

This new datatype was introduced from 2013b version.

Hey @taznux,
I'm very excited that the code has now finally functioned properly! So now after running the program, I was wondering how you evaluate the result.... For example like where to find the coordinates of the nodules detected per CT slice or like an image of the nodule etc... Or like a key to how to read the results?
Thank you for your hard work, Aneesh
Happy 2017!

1018 cases

Hi,

I'm trying to use this framework to detect nodule but found the FP reduction code is not in main.m. Once I run this code, for each patient, I got more than 900 nodules. It will be great if you can share with me how to do FP reduction to achieve the same result as your paper.

Thanks

@taznux Hi It's aneeshers again,
So as you suggested last time, I switched to Matlab R2016a , although I get the same errors.
First I get the error

Struct contents reference from a non-struct array object.

Error in main (line 207)
for sid = unique(nodule_detection_evaluation.sid)'

So then I change for sid = unique(nodule_detection_evaluation.sid)' to for sid = unique(nodule_detection_evaluation)'
Although I feel this is not the real issue, after I do this I get a running program, except it's using a different variable as an input rather than path_data = '/Users/aneeshmuppidi/Documents/LIDC-DRI/LIDC-IDRI-DICOM'; %dcm files directory
I run the program with a regular input, and I just get an output of
nodule_detection_summary = []
Then I input no file path, I get the same result.
After I do more retracing of the code, I find that
filename_input = [ct_img_path pid '_input.mat'];
Is actually taking inputs from a dicomImage_input.mat for each number of dicom images, I believe the dicomNumber_input.mat is being generated from fn_scan_pid.m
Also I noticed that the filename_input = [ct_img_path pid '_input.mat'];
is looking for a Dicomimage_input.mat from ct_img_path which is actually Output/CT_Images
Which I'm kind of confused.
So far that is my belief about this, I'm still confused, hopefully you can help me.

Thank you, Aneeshers.