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shaohua-pan / RobustCap

Code for our SIGGRAPH ASIA 2023 paper "Fusing Monocular Images and Sparse IMU Signals for Real-time Human Motion Capture".
https://shaohua-pan.github.io/robustcap-page/
MIT License
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Questions about the acceleration #14

Closed ElectronicElephant closed 4 months ago

ElectronicElephant commented 5 months ago

Hi,

Thanks for sharing the code of the awesome project!

I have some questions about the acceleration from the IMUs.

First, what is the unit of the acceleration? Is it SI (m/s^2) or G (g)?

Second, is the gravity cancelled out from the acceleration? I suppose the synthetic acc generated from the AIST++ dataset does not consider the gravity, but the readings from IMUs contain the gravity.

Thanks.

shaohua-pan commented 4 months ago

The unit of the acceleration is m/s^2. The gravity is canceled from the IMU readings.