Open Junxix opened 7 months ago
Hi @Junxix, in robomimic's offical dataset, all actions are represented as the delta with respect to the current pose. We call this action represetnation "velocity control" in this paper. Unfortunately, CNN-based diffusion policy performs very poorly under this action represetantion. Therefore, we converted all robomimic datasets into absolute posititional actions using robomimic_dataset_conversion.py. The result of this conversion is saved to low_dim_abs.hdf5 and image_abs.hdf5 respectively.
The reading method for the diffusion policy dataset is in the form of zarr. Why is it HDF5? Do we need to convert HDF5 to zarr?
Hi Cheng, I'm wondering what are the differences between low_dim.hdf5 and low_dim_abs.hdf5 since the dataset in the robomimic environment only has low_dim.hdf5 and image.hdf5. How is the low_dim_abs.hdf5 and image_abs.hdf5 dataset produced? Thanks for your help!