Empty .mat files

[qwoprocks]

I tried loading all the .mat files under Video_V into MatLab (was trying to convert them into .csv format for use in Python3). I found that quite a few of the .mat files don't have data, which is illustrated in the following screenshot:

I thought it meant that there were no drones in the video, but I checked this specific file and there does seem to be a drone.

This is what a non-empty .mat file gives:

The script I'm using to convert to .csv is as follows:

for file = dir(fullfile('Video_V', '**/*.mat'))'
    fullFileName = fullfile(file.folder, file.name);
    [pathstr, name, ext] = fileparts(file.name);
    fileType = split(file.name, '_');
    fileType = fileType(2);
    gt = load(fullFileName);
    try
        gTruth = selectLabels([gt.gTruth], fileType);
        csvFile = fullfile('CSVs', strcat(name, '.csv'));
        writetimetable(gTruth.LabelData, csvFile);
    catch ME
        file.name
    end
end

[DroneDetectionThesis]

Hello. I downloaded the file V_DRONE_047_LABELS.mat and it looks ok to me. [image: bild.png] Best regards, Fredrik Den sön 7 maj 2023 kl 11:04 skrev qwoprocks ***@***.***>:

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I tried loading all the .mat files under Video_V into MatLab (was trying to convert them into .csv format for use in Python3). I found that quite a few of the .mat files don't have data, which is illustrated in the following screenshot: [image: image] <https://user-images.githubusercontent.com/46164638/236668156-8413e9f9-0089-40e7-9d85-ccedae843b9f.png> This is what a non-empty .mat file gives: [image: image] <https://user-images.githubusercontent.com/46164638/236668227-959d8755-b301-4d11-9e98-7f290ac95a6c.png> The script I'm using to convert to .csv is as follows: for file = dir(fullfile('Video_V', '**/*.mat'))' fullFileName = fullfile(file.folder, file.name); [pathstr, name, ext] = fileparts(file.name); fileType = split(file.name, '_'); fileType = fileType(2); gt = load(fullFileName); try gTruth = selectLabels([gt.gTruth], fileType); csvFile = fullfile('CSVs', strcat(name, '.csv')); writetimetable(gTruth.LabelData, csvFile); catch ME file.name end end — Reply to this email directly, view it on GitHub <#2>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/APSY4W4EQWMWB3P62GSLSJTXE5QQHANCNFSM6AAAAAAXYXIG5U> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[qwoprocks]

Thank you for the response! I can't seem to view the image you uploaded, could you post it again?

[DroneDetectionThesis]

See attached. /F Den fre 12 maj 2023 kl 16:42 skrev qwoprocks ***@***.***>:

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Thank you for the response! I can't seem to view the image you uploaded, could you post it again? [image: image] <https://user-images.githubusercontent.com/46164638/238003288-d8f89985-1c9d-464a-b747-c3412d5d74a6.png> — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/APSY4W4A7MEW2VWBJARLYKTXFZD5LANCNFSM6AAAAAAXYXIG5U> . You are receiving this because you commented.Message ID: ***@***.*** com>

[pilot00]

I met the same problem, did you solve it？

[qwoprocks]

I met the same problem, did you solve it？

nope, I just skipped over the empty files

[DroneDetectionThesis]

Hello. If you check the size of the downloaded file, is it 0kB or is it 12kB or larger? As you know I got a similar question from "qwoprocks", and when I tried to download the file described as empty and opened it in Matlab it was ok (see attached). Best regards, Fredrik Den sön 21 maj 2023 kl 00:09 skrev pilot00 ***@***.***>:

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I met the same problem, did you solve it？ — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/APSY4WZQ4UFU7R6ID2SI2KLXHE6IVANCNFSM6AAAAAAXYXIG5U> . You are receiving this because you commented.Message ID: ***@***.*** com>

[pilot00]

All the .mat files are above 0KB.