{"id":995,"date":"2019-09-11T08:00:32","date_gmt":"2019-09-11T08:00:32","guid":{"rendered":"http:\/\/dev.leonardopavanatto.com\/3di\/?p=995"},"modified":"2021-03-10T22:23:38","modified_gmt":"2021-03-11T03:23:38","slug":"sui-2019-publication-gaze-direction-visualization","status":"publish","type":"post","link":"https:\/\/wordpress.cs.vt.edu\/3digroup\/2019\/09\/11\/sui-2019-publication-gaze-direction-visualization\/","title":{"rendered":"SUI 2019 Publication – Gaze Direction Visualization"},"content":{"rendered":"\n
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The 3DI Group would like to congratulate\u00a0Yuan Li<\/a>\u00a0and Feiyu Lu<\/a>\u00a0for publishing their work on Gaze Direction Visualization techniques for Collaborative AR<\/a>\u00a0at SUI 2019. Their publication is entitled “Gaze Direction Visualization Techniques for Collaborative Wid-Area Model-Free Augmented Reality,” and was overseen by\u00a0Dr. Douglas Bowman<\/a>\u00a0and 3DI Group alumnus Dr.\u00a0Wallace Lages<\/a>.<\/p>\n\n\n\n

In collaborative tasks, it is often important for users to understand their collaborator’s gaze direction or gaze target. Using an augmented reality (AR) display, a ray representing the collaborator’s gaze can be used to convey such information. In wide-area AR, however, a simplistic virtual ray may be ambiguous at large distances, due to the lack of occlusion cues when a model of the environment is unavailable. They describe two novel visualization techniques designed to improve gaze ray effectiveness by facilitating visual matching between rays and targets (Double Ray technique), and by providing spatial cues to help users understand ray orientation (Parallel Bars technique). In a controlled experiment performed in a simulated AR environment, they evaluated these gaze ray techniques on target identification tasks with varying levels of difficulty. The experiment found that, assuming reliable tracking and an accurate collaborator, the Double Ray technique is highly effective at reducing visual ambiguity, but that users found it difficult to use the spatial information provided by the Parallel Bars technique. They then discuss the implications of these findings for the design of collaborative mobile AR systems for use in large outdoor areas.<\/p>\n\n\n\n

Yuan Li will present this work in New Orleans, USA at SUI 2019<\/a> (October 19-20, 2019).<\/p>\n","protected":false},"excerpt":{"rendered":"

The 3DI Group would like to congratulate\u00a0Yuan Li\u00a0and Feiyu Lu\u00a0for publishing their work on Gaze Direction Visualization techniques for Collaborative AR\u00a0at SUI 2019. Their publication is entitled “Gaze Direction Visualization Techniques for Collaborative Wid-Area Model-Free Augmented Reality,” and was overseen by\u00a0Dr. Douglas Bowman\u00a0and 3DI Group alumnus Dr.\u00a0Wallace Lages. In collaborative tasks, it is often important …<\/a><\/p>\n","protected":false},"author":331,"featured_media":996,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[63],"ppma_author":[391],"class_list":["post-995","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-publications"],"authors":[{"term_id":391,"user_id":331,"is_guest":0,"slug":"dbowman","display_name":"Doug Bowman","avatar_url":{"url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2021\/01\/professional_photo2_2019-cropped-square-smaller-scaled.jpg","url2x":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2021\/01\/professional_photo2_2019-cropped-square-smaller-scaled.jpg"},"author_category":"1","user_url":"","last_name":"Bowman","first_name":"Doug","job_title":"","description":"Doug A. Bowman is the Frank J. Maher Professor of Computer Science<\/a> at Virginia Tech<\/a>. He is the principal investigator of the 3D Interaction Group<\/a>, focusing on the topics of three-dimensional user interfaces, VR\/AR user experience, and the benefits of immersion in virtual environments.\r\n\r\nDr. Bowman is one of the co-authors of 3D User Interfaces: Theory and Practice<\/a>. He has served in many roles for the IEEE Virtual Reality Conference<\/a>, including program chair, general chair, and steering committee chair. He also co-founded the IEEE Symposium on 3D User Interfaces (now part of IEEE VR). He received a CAREER award from the National Science Foundation for his work on 3D Interaction, and has been named an ACM Distinguished Scientist. He received the Technical Achievement award from the IEEE Visualization and Graphics Technical Committee in 2014 and the Career Impact Award from IEEE ISMAR in 2021.\r\n\r\nHis undergraduate degree in mathematics and computer science is from Emory University, and he received his M.S. and Ph.D. in computer science from the Georgia Institute of Technology.\r\n\r\nCurriculum vitae (PDF)<\/a>"}],"jetpack_featured_media_url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2020\/09\/Teaser8.png","_links":{"self":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/users\/331"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/comments?post=995"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/995\/revisions"}],"predecessor-version":[{"id":2503,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/995\/revisions\/2503"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/media\/996"}],"wp:attachment":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/media?parent=995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/categories?post=995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/tags?post=995"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/ppma_author?post=995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}