Interactive Calibration of a Multi-Projector System in a Video-Wall Multi-Touch Environment<\/a>.
\nUIST 2010 Adjunct Proceedings<\/i>, 437-438.
\nNew York, NY, USA, Ottobre 2010.<\/p>\n","protected":false},"excerpt":{"rendered":"Abstract: Wall-sized interactive displays gain more and more attention as a valuable tool for multiuser applications, but typically require the adoption of projectors tiles. Projectors tend to display deformed images, 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":[24,25,5],"class_list":["post-30","post","type-post","status-publish","format-standard","hentry","category-paper","tag-a-lai","tag-a-soro","tag-r-scateni"],"_links":{"self":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/30","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=30"}],"version-history":[{"count":1,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/30\/revisions"}],"predecessor-version":[{"id":31,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/posts\/30\/revisions\/31"}],"wp:attachment":[{"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/media?parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/categories?post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.unica.it\/cg3hci\/wp-json\/wp\/v2\/tags?post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![](\"http:\/\/people.unica.it\/riccardoscateni\/files\/2013\/07\/Lai2010ICM.png\")
Abstract<\/b>: Wall-sized interactive displays gain more and more attention as a valuable tool for multiuser applications, but typically require the adoption of projectors tiles. Projectors tend to display deformed images, due to lens distortion and\/or imperfection, and because they are almost never perfectly aligned to the projection surface. Multi-projector videowalls are typically bounded to the video architecture and to the specific application to be displayed. This makes it harder to develop interactive applications, in which a fine grained control of the coordinate transformations (to and from user space and model space) is required. This paper presents a solution to such issues: implementing the blending functionalities at an application level allows seamless development of multi-display interactive applications with multi-touch capabilities. The description of the multi-touch interaction, guaranteed by an array of cameras on the baseline of the wall, is beyond the scope of this work which focuses on calibration.<\/p>\n