Question regarding stage 4 HD image size #244

Hello,

Thank you for the great work!

For stage 4 (instruction tuning with HD data), the current code seems to resize/crop image to 224x224:
https://github.com/OpenGVLab/Ask-Anything/blob/main/video_chat2/scripts/videochat_mistral/config_7b_hd_stage4.py#L21
https://github.com/OpenGVLab/Ask-Anything/blob/main/video_chat2/dataset/__init__.py#L73

which means it's actually using 224x224 frames for training. Is that true? If so, what is this "HD" about? Or did I miss something?

Thank you!