MetaData meaning

[laoyuer]

Hi guys
can anybody can help to explain the meaning for all the metadata?
I guess:
1. for the xxx_gyro_xxx.txt file: the first column is timestamp for gyro, unit is ns; 2nd to 4th column is gyro data, unit is rad/s; 5th column don't know; 6th column don't know
2. for the xxx_ois_xxx.txt file: the first column don't know, seems like the 6th column of xxx_gyro_xxx.txt; 2nd to 3rd column is the ois data, unit is don't know; 4th column is timestamp for ois data, unit is ns
3. for the xxx_frame_xxx.txt: the 1st col is timestamp(for what is don't know), unit is ns; 2nd col is don't know; 3rd col is don't know; 4th col is don't know; 5th col is timestamp(for what is don't know), unit is ns; 6th col seems like zoom ratio; 7th col seems like seems like the 6-th column of xxx_gyro_xxx.txt;

[fhshi]

Hello. Please find the format descriptions below, and refer to the demo here (https://github.com/googleinterns/deep-stabilization#data-preparation) for more details. 1. gyro log: (timestamp in us, angular velocity (x, y, z) in rad/s, timestamp that is not used, frame id). 2. OIS log: (frame id, OIS (x, y) in pixel w.r.t. active array size, timestamp in ns), 3. frame log: (frame timestamp in ns, exposure in ns, vcm lens position, rolling shutter time in ns, frame timestamp in OIS's time domain in ns, zoom ratio, frame id).

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On Mon, Jun 7, 2021 at 7:42 PM laoyuer ***@***.***> wrote: Hi guys can anybody can help to explain the meaning for all the metadata? I guess: 1. for the xxx_gyro_xxx.txt file: the first column is timestamp for gyro, unit is ns; 24 column is gyro data, unit is rad/s; 5-th column don't know; 6-th column don't know 2. for the xxx_ois_xxx.txt file: the first column don't know, seems like the 6-th column of xxx_gyro_xxx.txt; 23 column is the ois data, unit is don't know; 4-th column is timestamp for ois data, unit is ns 3. for the xxx_frame_xxx.txt: the 1st col is timestamp(for what is don't know), unit is ns; 2nd col is don't know; 3rd col is don't know; 4th col is don't know; 5th col is timestamp(for what is don't know), unit is ns; 6th col seems like zoom ratio; 7th col seems like seems like the 6-th column of xxx_gyro_xxx.txt; — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA2ICDNLI4G2UWN6GS2QYQDTRV7SRANCNFSM46I4SBGA> .

[laoyuer]

Hi, fhshi
thanks for you reply
I have some other questions:

1. for frame log 3rd col, what's the mean about "vcm lens position"? is it for AF lens or OIS lens ? if it's for OIS lens, what's the difference between OIS data in OIS log
2. which phone do you used to collect this data and video? how about the OIS status(enabled or disabled) when you collect this video and data?
3. Have the gyro data in gyro log removed the zero bias or not?