KeyError: 'Sequence'

[RonaldGalea]

Hello, I am trying to evaluate some results from my tracker (YOLOv3 + SORT) on the MOT16 dataset. I am trying to use the following command:

python -m motmetrics.apps.evaluateTracking GT_ROOT TEST_ROOT seqmaps/seqmap.txt --fmt mot16,

where my directory structure is: GT_ROOT/MOT16-02/gt/gt.txt TEST_ROOT/MOT16-02.txt seqmaps/seqmap.txt

the content of seqmap.txt is just MOT16-02, as recommended when running python -m motmetrics.apps.evaluateTracking --help

Specifically, I am getting this error: raise KeyError(key) KeyError: 'Sequence', coming from motmetrics\preprocess.py", line 52, in preprocessResult F = int(seqIni['Sequence']['seqLength'])

Upon inspecting this further, it seems that the seqIni dictionary takes its keys (partly) from seqmap, so it seems that the string 'Sequence' must be in seqmap.txt.

If I add it, I get 10:32:33 ERROR - gt File GT_ROOT\Sequence\gt/gt.txt not found.

which makes sense, since seqmap.txt is supposed to contain just the sequence names for mapping purposes, so why does it expect to have 'Sequence'?

Thanks in advance

[Blair129]

I'm facing this problem too. Is there any way to solve it? Thx

[Blair129]

Well, I find out that you should also put the file "seqinfo.ini" in your directory and then it will work.

[hyperparameters]

@Blair129 what should seqinfo.ini contain ?

[jvlmdr]

Hi. I'm not very familiar with the evaluateTracking app, but here is an example of a seqinfo.ini file from the MOT17 test set (taken from https://motchallenge.net/data/MOT17Labels.zip)

[Sequence]
name=MOT17-14-SDP
imDir=img1
frameRate=25
seqLength=750
imWidth=1920
imHeight=1080
imExt=.jpg

It looks like preprocess.py only uses 'seqLength', so you might not need to provide all of these entries.

[jvlmdr]

Oops sorry, I didn't mean to close your issue.

[hanshong]

When I evaluated some results on MOT15 dataset, It happened KeyError:'Sequence' at first. And then I add seqinfo.ini files into the MOT15 dataset files. But it still had a error as follows:

Traceback (most recent call last): File "motmetrics/apps/evaluateTracking.py", line 185, in main() File "motmetrics/apps/evaluateTracking.py", line 174, in main accs, analysis, names = compare_dataframes(gt, ts, args.log, 1. - args.iou) File "motmetrics/apps/evaluateTracking.py", line 87, in compare_dataframes acc, ana = mm.utils.CLEAR_MOT_M(gts[k][0], tsacc, gts[k][1], 'iou', distth=iou, vflag=fd) File "/home/py-motmetrics/motmetrics/utils.py", line 127, in CLEAR_MOT_M dt = preprocessResult(dt, gt, inifile) File "/home/py-motmetrics/motmetrics/preprocess.py", line 66, in preprocessResult for i, (k, it) in enumerate(GTInFrame.iterrows()) File "/home/py-motmetrics/motmetrics/preprocess.py", line 66, in for i, (k, it) in enumerate(GTInFrame.iterrows()) KeyError: 4.4852

Is it due to the unfamiliar data format in gt.txt between MOT15 and MOT17？ How could I modify it? Hope for response, thanks!!

[cheind]

@hanshong there seems to be a mismatch between the expected and given file format. Could you provide a MWE that reproduces the error?

[cheind]

Closing this due to lack of activity. Please reopen when you got an MWE.