About running train_nn.py and the dataset about gelsight_simulation HOT 1 OPEN

Hi XU,
thank you for your feedback.

1. Are you running it as ./experiments.sim2rel.train.py? Maybe you want to run the script as python -m experiments.sim2real.train_nn (it should be python version 3) . The files seem to be in the experiments/util/ folder, I don't know what else could be.
2. Indeed, there are some differences. You can try to better adjust the simulation model to better satisfy your needs. The model contains many parameters that affect the geometry.. the number of smoothing filters applied, the px2cm ratio, etc. Our experiments assumed that there would be always some gap between the simulated images and the real images, and we bridged this gap by introducing randomly distributed noise on the simulated elastomer heightmap. Possibly you are referring to our older shorter paper, but we have recently published a more recent version of this work https://arxiv.org/pdf/2101.07169.pdf all the materials are also referred at https://danfergo.github.io/gelsight-simulation/

from gelsight_simulation.