Questions about dataset

[Vincy-Ying]

Hi, I have checked your dataset, and there are some questions.
1）The data acquired from ARcore, how to decide the starting point (i.e., position_x =0, position_y=0, position_z=0) in each experiment?
2）What does 'lookback' mean? You use ''acc'' and ''gyr'' of a period, to map ''position'' and ''quaternion'' in specified time point?

[rfbr]

Hello and sorry for the delay!

1. This is a good question. As we've the building's plan, for each experiment we manually decided where we started (thus what was the point of origin of the system and the starting angle). You can see here more details about how we leveraged the floor plan.
2. The lookback parameter defines the number of past data points (acc and gyr) we want to use to predict the future position (translation and rotation).

Don't hesitate if I am not clear enough or if you have further questions!