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# System prepended metadata

title: InstantAvatar

---

## Objective
![](https://hackmd.io/_uploads/rkW13pnjn.png)

## Model
![](https://hackmd.io/_uploads/SJN96p2i3.png)

## animation.npz
### format
#### ![](https://hackmd.io/_uploads/r1jXnrrin.png)
![](https://hackmd.io/_uploads/Bknr3Srsn.png)

### poses 
Array shape: frames, global orientation parameters(3) + number of joints(23)* Axis-Angle(3)

### trans
![](https://hackmd.io/_uploads/rJOhhBro3.png)

## Original Dataset
AIST dataset:
https://google.github.io/aistplusplus_dataset/factsfigures.html
https://github.com/tijiang13/InstantAvatar/issues/4

## References
* InstantAvatar introduction:
https://blog.csdn.net/Stetman/article/details/131921081
* meaning of SMPL @@parameters: 
 https://github.com/nghorbani/amass/issues/2
* axis-angle:
 https://zhuanlan.zhihu.com/p/359110453