Multi-touch and Tangible Interface: Two Different Interaction Modes in the Same System<\/a>.
\nACM SIGCHI Italian Chapter (CHItaly 2011) Adjunct Proceedings (poster)<\/i>.
\nAlghero, Italia, Settembre 2011.<\/p>\n","protected":false},"excerpt":{"rendered":"Abstract: We present here a system built around the idea of giving to several users the possibility to interact with a cheap and solid hardware, at the same time, using Continue Reading …<\/a><\/p>\n","protected":false},"author":2161,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[25,29,30,5],"class_list":["post-42","post","type-post","status-publish","format-standard","hentry","category-paper","tag-a-soro","tag-d-cabiddu","tag-g-marcias","tag-r-scateni"],"_links":{"self":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/42","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/users\/2161"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/comments?post=42"}],"version-history":[{"count":1,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/42\/revisions"}],"predecessor-version":[{"id":51,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/42\/revisions\/51"}],"wp:attachment":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/media?parent=42"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/categories?post=42"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/tags?post=42"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![](\"http:\/\/people.unica.it\/riccardoscateni\/files\/2013\/07\/Cabiddu2011MTI.png\")
Abstract<\/b>: We present here a system built around the idea of giving to several users the possibility to interact with a cheap and solid hardware, at the same time, using natural gestures supported by an intuitive user interface. A projector and a camera are placed underneath a Plexiglas sheet, framed with an array of infrared LEDs, all set into a wooden table box. This allows for multiple users (up to four or five) to freely move around the box and manipulate the objects retro-projected on the screen, using a tangible interface designed aiming at offering few simple operations: geometric transforms (rotations, translations and scales), drawing, erasing and color selections. All of these are executed through the use of either a custom built IR LED pen and\/or directly the fingers. The main purpose of the project is to offer an instrument of tangible interaction to classrooms of naive users (i.e.: neither technology nor science professors and students) in a university environment.<\/p>\n