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martinkonopka avatar martinkonopka commented on June 3, 2024

I can take a look at it.

Could you, please, attach the sample file here? Or try it with smaller sample with few seconds of data and if it behaves the same, share the smaller file here (to not expose your whole data file), please.

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martinkonopka avatar martinkonopka commented on June 3, 2024

I tried it with sample of my data recorded with Tobii TX-300 (300Hz frequency). I attach files with timestamps both in microsecond ticks and date string. I use the same command as you and I get the desired output:

Input files:

Commands for each file:

# with timestamps in microsecond ticks format
i-vt.exe input_ticks-us.csv --format CSV --timestamp-format ticks:us --fillin --select Average --denoise --denoise-alpha 0.3 --frequency 300 --threshold 30 --merge --merge-max-gap 75 --discard --discard-min-duration 60 --output-format CSV --output output.csv

# with timestamps in date format
i-vt.exe input_date.csv --format CSV --timestamp-format date --fillin --select Average --denoise --denoise-alpha 0.3 --frequency 300 --threshold 30 --merge --merge-max-gap 75 --discard --discard-min-duration 60 --output-format CSV --output output.csv

Contents of the output.csv for input_ticks-us.csv:

Timestamp,MovementType,Duration,AverageGazePoint2DX,AverageGazePoint2DY,AverageGazePoint3DX,AverageGazePoint3DY,AverageGazePoint3DZ,AverageEyePosition3DX,AverageEyePosition3DY,AverageEyePosition3DZ,AveragePupilDiameter
63665708848005210,Fixation,2554.597,0.103680339429494,0.0941844370227761,-203.629041780781,279.632641473214,99.8095474757076,-4.71131461528727,-33.8008176905819,716.311789893637,5.84596384810406
63665708850559807,Saccade,23.338,,,,,,,,,
63665708850583145,Unknown,23.335,,,,,,,,,
63665708850606480,Saccade,16.657,,,,,,,,,
63665708850623137,Fixation,493.25,0.094186489905852,0.0736467710294352,-208.506982085741,285.151113172496,102.046920487909,-4.00790992971969,-33.864278925102,715.691972009477,5.9727451221363
63665708851116387,Saccade,36.67,,,,,,,,,
63665708851153057,Fixation,219.966,0.105584509578021,0.21466137756897,-202.650678411805,247.260489271711,86.6847894288956,-3.74999011040187,-34.404844331504,715.135778873439,5.81960608742454
63665708851373023,Saccade,49.99,,,,,,,,,
63665708851423013,Unknown,39.995,,,,,,,,,
63665708851463008,Saccade,6.612,,,,,,,,,
63665708851469620,Unknown,13.387,,,,,,,,,
63665708851483007,Saccade,6.665,,,,,,,,,
63665708851489672,Unknown,1.672,,,,,,,,,

Do you have data recorded with 300Hz frequency? Because you set the data frequency to that value with argument --frequency 300.

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asaatif avatar asaatif commented on June 3, 2024

Thanks a lot for quick reply. I checked your example in my system and it works well. I found out my mistake. I did not recognize that my timestamps are constant. Now, it is sorted out, I corrected it and found the and able to obtain fixations.
fixationIVT.csv

Once again Thanks

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martinkonopka avatar martinkonopka commented on June 3, 2024

I am glad you sorted it out. Yes, the timestamps are needed.

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