Overview of augmented reality
Overview of augmented reality
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增强现实概述
DOI:
10.1145/1103900.1103926
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Ronald T. Azuma
中科院分区:
文献类型:
--
作者:
Ronald T. Azuma
• 1) Blends real and virtual, in real environment • 2) Real-time interactive • 3) Registered in 3-D • Applies to all senses (auditory, haptic?) • Not an HMD-specific definition • Includes idea of removing part of real environment (a.k.a. mediated or diminished reality) Reality: A class of displays on the reality-virtuality continuum Mixed Reality Systems Lab HITL Why are researchers interested? Why are researchers interested? • Enhance perception of and interaction with the real world • Potential for productivity improvements in real-world tasks • Relatively new field with many problems, but much progress has occurred recently 4 A Brief (and incomplete) History of AR (1) A Brief (and incomplete) History of AR (1) A Brief (and incomplete) History of AR (2) • Early 1990's: Boeing coined the term " AR. " Wire harness assembly application begun. • Early to mid 1990's: UNC ultrasound visualization project • 1994: Motion stabilized display [Azuma] • 1994: Fiducial tracking in video see-through [Bajura / Neumann] • 1996: UNC hybrid magnetic-vision tracker (first compelling environment) 5 A Brief (and incomplete) History of AR (3) A Brief (and incomplete) History of AR (3) • Adding virtual content to live sports broadcasts – " First down " line in American football – Hockey puck trails, virtual advertisements – Strike zone visualization – National flags in swimming lanes in 2000 Olympics • Commercial application • Real-time previsualization of special effects, on site during live action principal photography • Gives both actors and directors a better concept of what the finished product will look like. Potential to make changes during principal photography (rather than fixing in post) • Robertson. Inside Moves, Computer Graphics World (July 2001) [ILM provided for film " A.I. " ] • So far this has been primarily done with virtual sets (augmented virtuality) Applications: medical Applications: medical • " X-ray vision " for surgeons • Aid visualization, minimally-invasive operations. Training. MRI, CT data. Applications: complex machinery Applications: complex machinery • Instructions for assembly, maintenance and repair of complex equipment – Aircraft [Boeing] – Printers [Columbia] – Engines – Automobile assembly – and others... Machinery augmented with virtual pipes and floor plan. • Public and private annotations • Aid recognition, " extended memory " – Libraries, maps [Fitzmaurice93] – Windows [Columbia] – Mechanical parts [many places] – Reminder notes [Sony, MIT Media Lab] Application: aircraft operations • Helmet-mounted sights (short-range missiles) • Virtual runway markers …