"Touché: Enhancing Touch Interaction on Humans, Liquids, and Everyday Objects" [1] and "Botanicus Interacticus: Interactive Plant Technology" [2] used a single

"Touché: Enhancing Touch Interaction on Humans, Liquids, and Everyday Objects" [1] and "Botanicus Interacticus: Interactive Plant Technology" [2] used a single electrode and machine-learning classification in order to distinguish between different types of touches and touch locations. Using multiple measurements (as Electrick does) provides much more robust tracking than these. [1] http://www.chrisharrison.net/index.php/Research/Touche http://www.chrisharrison.net/index.php/Research/Touche [2] https://www.disneyresearch.com/project/botanicus-interacticus-interactive-plant-technology/ https://www.disneyresearch.com/project/botanicus-interacticu...