?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Pachtrachai%2C+K&rft.aulast=Pachtrachai&rft.aufirst=K&rft.title=IEEE+Robotics+and+Automation+Letters&rft.atitle=Learning+to+Calibrate+-+Estimating+the+Hand-eye+Transformation+without+Calibration+Objects&rft.date=1+October+2021&rft.volume=6&rft.issue=4&rft.pages=7309-7316&rft.genre=article