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Knowledge-based Augmented Reality

July 1993

STEVEN FEINER

Columbia University

BLAIR MACINTYRE

Columbia University

DOREE SELIGMANN

AT&T Bell Laboratories

Unnur& Shaheen

July 1993 Augmented Reality

An augmented reality present a virtual world that

enriches, rather than replaces, the real world,

Instead of blocking out the real world.

automate the design of presentations that explain

how to perform 3D tasks.

Unnur& Shaheen

July 1993 Goal of This Paper:

’Here, we discuss KARMA—Knowledge-based Augmented Reality

a test-bed system for exploring the automated design of

augmented realities that explain maintenance and repair tasks.’’

Unnur& Shaheen

Unnur

&

Shaheen

July 1993

The knowledge-based graphics component we use is based on IBIS (Intent-Based Illustration System)

IBIS

Rule-based Designs illustrations Some input Communicative

intent List of

Communicative

goals

July 1993 IBIS

Design

Style

Unnur& Shaheen

July 1993 IBIS

Methods Evaluators How to

Accomplished a particular

Style or Design

Determines whether

a particular Style or Design

Has been accomplished

Unnur& Shaheen

July 1993 Extending IBIS for Augmented Reality

Generates everything seen by user All communicative goals achieved by Enrich with additional information All control of viewing specification Consider changes in the real world The user becomes an active participant in achieving the communicative goals

Unnur& Shaheen

July 1993 The Experiment

Test-bed Application:

End-User Laser Printer Maintenance

KARMA is a prototype augmented reality system that explains simple end-user laser printer maintenance using a see-through head-mounted display

Presented by Unnur& Shaheen

July 1993 The Experiment

Augmented reality intended to show toner cartridge and show location of and identify paper tray. ( Designed by KAMARA

Unnur& Shaheen

July 1993 The Experiment

Augmented reality intend4d to show action of pulling out paper tray and resulting change in try’s state. ( Designed by KAMARA

Unnur& Shaheen

July 1993 The Experiment

Presented by Unnur& Shaheen

Unnur & Shaheen

July 1993

The Experiment

t u r e

Unnur & Shaheen

July 1993

The Experiment

t u r e

July 1993 Implementation:

?IBIS is implemented in C++ and the CLIPS production system

?HPUX on an HP 9000 380 TurboSRX graphics workstation.

486DX-based PC.

Unnur& Shaheen

November/December2001 Ronald Azuma

HRL Laboratories

Yohan Baillot

NRL Virtual Reality Lab/ITT Advanced Engineering

Reinhold Behringer

Rockwell Scientific

Steven Feiner

Columbia University

Simon Julier

NRL Virtual Reality Lab/ITT Advanced Engineering

Blair MacIntyre

Georgia Institute of Technology

November/December2001 Augmented Reality(AR)

’’We define an AR system to have the following properties:

real and virtual objects in a real environment;

interactively, and in real time; and registers (aligns) real and virtual objects with other’’

Augmented Reality (AR)

Mixed reality

November/December 2001

reality–virtuality continuum. (Adapted from Milgram and Kishino)

reality Virtual

environment

Augmented virtuality

November/December2001 AR History

Sutherland’s work in the 1960s, which used a seethrough HMD to present 3D graphics.

on AR began, including the International Workshop and Symposium on Augmented Reality, the

International Symposium on Mixed Reality, and the Designing Augmented Environments workshop

(the ARToolkit) for rapidly building AR applications is available at

https://www.doczj.com/doc/65117521.html,/research/shared_space/

November/December2001 AR Enabling technologies

Displays

We can classify displays for viewing the merged virtual

the following categories:

handheld, and

November/December2001 AR Enabling technologies

Displays

Head-worn displays (HWD).

(nothing but a sunglass, weigh less than6 grams, 800 X 600 resulation)

video see-through

翻译技巧和经验第17期Virtual reality 该如何翻译

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一般过去式 时间状语:yesterday just now (刚刚) the day before three days ag0 a week ago in 1880 last month last year 1. I was in the classroom yesterday. I was not in the classroom yesterday. Were you in the classroom yesterday. 2. They went to see the film the day before. Did they go to see the film the day before. They did go to see the film the day before. 3. The man beat his wife yesterday. The man didn’t beat his wife yesterday. 4. I was a high student three years ago. 5. She became a teacher in 2009. 6. They began to study english a week ago 7. My mother brought a book from Canada last year. 8.My parents build a house to me four years ago . 9.He was husband ago. She was a cooker last mouth. My father was in the Xinjiang half a year ago. 10.My grandfather was a famer six years ago. 11.He burned in 1991

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commit imaginary realistic security image amazing 2)拓展词汇 inspect manufacture architect amazing glide head-set inspect medium virtual fantasy 3)词组和短语 look down upon go back in time come true thanks to introduce … into reach out just for entertainment before long

学生造句--Unit 1

●I wonder if it’s because I have been at school for so long that I’ve grown so crazy about going home. ●It is because she wasn’t well that she fell far behind her classmates this semester. ●I can well remember that there was a time when I took it for granted that friends should do everything for me. ●In order to make a difference to society, they spent almost all of their spare time in raising money for the charity. ●It’s no pleasure eating at school any longer because the food is not so tasty as that at home. ●He happened to be hit by a new idea when he was walking along the riverbank. ●I wonder if I can cope with stressful situations in life independently. ●It is because I take things for granted that I make so many mistakes. ●The treasure is so rare that a growing number of people are looking for it. ●He picks on the weak mn in order that we may pay attention to him. ●It’s no pleasure being disturbed whena I settle down to my work. ●I can well remember that when I was a child, I always made mistakes on purpose for fun. ●It’s no pleasure accompany her hanging out on the street on such a rainy day. ●I can well remember that there was a time when I threw my whole self into study in order to live up to my parents’ expectation and enter my dream university. ●I can well remember that she stuck with me all the time and helped me regain my confidence during my tough time five years ago. ●It is because he makes it a priority to study that he always gets good grades. ●I wonder if we should abandon this idea because there is no point in doing so. ●I wonder if it was because I ate ice-cream that I had an upset student this morning. ●It is because she refused to die that she became incredibly successful. ●She is so considerate that many of us turn to her for comfort. ●I can well remember that once I underestimated the power of words and hurt my friend. ●He works extremely hard in order to live up to his expectations. ●I happened to see a butterfly settle on the beautiful flower. ●It’s no pleasure making fun of others. ●It was the first time in the new semester that I had burned the midnight oil to study. ●It’s no pleasure taking everything into account when you long to have the relaxing life. ●I wonder if it was because he abandoned himself to despair that he was killed in a car accident when he was driving. ●Jack is always picking on younger children in order to show off his power. ●It is because he always burns the midnight oil that he oversleeps sometimes. ●I happened to find some pictures to do with my grandfather when I was going through the drawer. ●It was because I didn’t dare look at the failure face to face that I failed again. ●I tell my friend that failure is not scary in order that she can rebound from failure. ●I throw my whole self to study in order to pass the final exam. ●It was the first time that I had made a speech in public and enjoyed the thunder of applause. ●Alice happened to be on the street when a UFO landed right in front of her. ●It was the first time that I had kept myself open and talked sincerely with my parents. ●It was a beautiful sunny day. The weather was so comfortable that I settled myself into the

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Unit 4 Cyberspace Lesson 3 Virtual Reality Teaching aims: To understand the dialogue. To get specific information about the virtual reality holidays. To voice your opinion on a virtual university. Teaching difficulties: How to make the students take part in the class actively. Before the class. You are divided into two groups: Group A and Group B. If some student in your group volunteersto answer the question, your group will get a smile face. The group that gets more smile faces willbe a winner. OK? Teaching procedures: Ⅰ. Lead in First,pleaselookatthreegroupsofpicturestodecide:whichoneshowsrealsituation? Which one shows unreal situation?Real/ Unreal They are all unreal situations, but they make us feel as if we are in real situations. Do youthink so? They are called virtual reality. Today we will read a passage---Lesson3 Virtual Reality Please look at objectives by yourselves. Do you understand? ⅡReading Task1. Skip to get main idea. Try to answer the two questions. 3’ 1. How many people are there in the dialogue? Who are they?

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