I worked on vibrotactile and electrotactile technologies (Mostly on the tongue, belly or chest...) for years. The most sensitive part of your body is the tongue

I worked on vibrotactile and electrotactile technologies (Mostly on the tongue, belly or chest...) for years. The most sensitive part of your body is the tongue, that's where you would get the best resolution. You could turn a b/w images, process it and lower the resolution, then turn the white into levels of stimulation. Unfortunately, the resolution on the tongue display is 20x20. It has its limitation, in a controlled environment we trained people to read 4-5 letter words in few seconds or distinguish shapes. For spatial orientation, it's better to use systems similar to a lidar and use a tactile vest to inform the user how close is the collision. The best use of these systems were for training formula 1 drivers (clue for shifting, braking, timing...), force feedbacks for telesurgery or restauring proprioception for exoskeleton users. https://www.ihmc.us/research/multi-sensory-multi-modal-neural-interfaces/ https://www.ihmc.us/research/multi-sensory-multi-modal-neura... https://www.sages.org/meetings/annual-meeting/abstracts-archive/an-anthro-centric-multisensory-interface-for-sensory-augmentation-of-tele-surgery/ https://www.sages.org/meetings/annual-meeting/abstracts-arch... http://downloads.hindawi.com/journals/jr/2011/284352.pdf http://downloads.hindawi.com/journals/jr/2011/284352.pdf