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license: mit
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# Gran Turismo 4 Multiplayer Data - Upsampler

This dataset contains video and action labels of 1v1 races in the PS2 game Gran Turismo 4 for upsampling purposes.

It was used to train the multiplayer world model [Multiverse](https://huggingface.co/Enigma-AI/multiverse).

Note: this code is only used to train an upsampler model to increase the frame resolution and details from 35x53 to 350x530.

### Data Structure

The dataset is comprised 1v1 races footage at 1 fps, split into `.hdf5` files.

Each frame has a shpae of (350, 530, 6), representing 2 RGB frames stacked together along the channel axis. As can be seen in the following figure:

<img src="https://cdn-uploads.huggingface.co/production/uploads/64df79dd288ed5cc730f0668/j1melysX9Jxc0Yg81phhl.png" width="300">

And the two player action is an array of size (66) in the following structure:

| Player  | Range  | Control        | Meaning                                      |
|:--------|:-------|:---------------|:---------------------------------------------|
| Player 1| 0–10   | Gas             | 0 = no gas, 10 = max gas                     |
| Player 1| 11–21  | Brake           | 11 = no brake, 21 = max brake                |
| Player 1| 22–32  | Steering        | 22 = max left, 27 = straight, 32 = max right |
| Player 2| 33–43  | Gas             | 33 = no gas, 43 = max gas                    |
| Player 2| 44–54  | Brake           | 44 = no brake, 54 = max brake                |
| Player 2| 55–65  | Steering        | 55 = max left, 60 = straight, 65 = max right |