datamaker/README.md

# datamaker

This directory stores the VidLLVIP preprocessing scripts, registration matrices, and intermediate processing results. The repository only keeps the scripts by default; large video files and matrix files should be downloaded separately.

## Download

- Option 1: Download from [Hugging Face](https://huggingface.co/datasets/jianfeng0369/VidLLVIP)
- Option 2: Download from [Quark Drive](https://pan.quark.cn/s/e3abe425aa5f?pwd=E5gv)

After downloading, extract `datamaker.zip` and `matrix.zip` into this directory so that it matches the structure below.

## Expected File Structure

```text
datamaker/
  README.md
  requirements.txt
  01_time_align.py
  02_space_align.py
  03_checkerboard.py
  04_split_5s_videos.py
  matrix/
    01.csv
    02.csv
    ...
    14.csv
  01_align/
    01/
      ir.mp4
      vi.mp4
      timestamp.xlsx
    ...
    14/
      ir.mp4
      vi.mp4
      timestamp.xlsx
  02_warp/
    01/
      ir.mp4
      vi.mp4
    ...
    14/
      ir.mp4
      vi.mp4
  03_ckboard/
    01.mp4
    02.mp4
    ...
    14.mp4
```

`matrix/` stores the 3x3 perspective transformation matrices for IDs `01` to `14`; `01_align/` stores the temporally aligned full videos; `02_warp/` stores the spatially registered full videos; and `03_ckboard/` stores checkerboard videos for quality inspection.