Addition of a biomimetic fingerprint on an artificial fingertip enhances tactile spatial acuity

EPSRC grant on Tactile Superresolution Sensing (EP/M02993X/1) The following data was obtained from 3 variants of the TacTip (with fingerprint, with fingerprint and cores, without fingerprint), an optical tactile sensor integrated on a 6-dof robotic arm The sensor performed localization on 9 stimuli with varying spatial frequency over a 30 mm range. The data was used to demonstrate the effect of fingerprints on tactile spatial perception.