'center' and 'scale' in MPII annotation

[violetnotfat]

Hi!
How can I get the 'center' and 'scale' in MPII annotation?
Are these values obtained by a detector?
Or they're just the average of the joints coordinates?

[eng100200]

@violetnotfat i think the author has computed it in json file, but, i am not sure whether the json file contains single-person or multi-person, further, they did not provide how they computed it

[j20232]

I calculated the averages of the all subsets of joint coordinates and compared between the values and "center" values.
However, they aren't always equal to the "center" values.
I think "center" values are annotated manually.

[Github3G]

I calculated the averages of the all subsets of joint coordinates and compared between the values and "center" values.
However, they aren't always equal to the "center" values.
I think "center" values are annotated manually.

manually? in addition, the number of smaple between official test.h5 and test.json of HRNet is different . so i use offical test.h5 file to test, and can the difference of center and scale influence the submitted result ?