Focus plus context screens

Focus plus context screens

Patrick Baudisch &Nathan Good

CHI ’02April 23th 2002

• Hardware– At least one hi-res display– At least one larger low-res display

• Software– scaling of the display content is preserved– resolution varies

Focus plus context screens

• 1. What it is

• 2. How it works

• 3. What it is good for (video)

• 4. Software

• 5. What’s next

How to build it?

Setup

Seamless integration of displays

a b

Context

No reflections on focus screen

Focus

What is it good for?

• <Show video here>

How does it work?

The scaling software

• Display image on two display units of different resolution– Similar to two-headed display– but display units are overlapping– and one of them has to be scaled down

• (Related work “Flux capacitor”[Dr. Emmett Brown, 1985])

Linux/VNC

app

focus

contextinput

server

clip

scale

viewer

viewer

Image viewer

context

Photoshop

scale

ACDsee

ACDsee

.gif

.gif

mousefork

input

focus

What’s next?

focus plus context screen VisualizationSame # of pixels

fisheye

55

overview plus detail

44

Display technology

homogeneous resolution

44wall-size, hi-res display

44

Tomorrow after lunch in Room

102 D-F

Tomorrow after lunch in Room

102 D-F

“Hand’s on” demo all week in the

Commons`

“Hand’s on” demo all week in the

Commons`

Future work: ContextWall

Submitted to CSCW

Submitted to CSCW

Extra slides

Evaluation

Field study

Subject’s task Document/view Smallest object

Static do

cum

ents

Web designer Page: 800 pixel Text: 10 pixel

Mechanical engineer Polybot segment: 5cm Pin: 1mm

Graphic designer Poster: 1m Text: 1cm

Architect in remodeling Building: 50m Wall: 10cm

Photogrammetry (2) Highway 2 miles Curb: 6 inches

Geographic info. system County: 80km Trees: 5m

Chip designers (2) Wafer: 12cm Conductive path: 3m

Dyn

amic

Air traffic ctrl. tool builder Zone: 50km Airplane: 50m

Ego shooter gamer Surrounding: 360º Distant opponent: 1º

Submarine ROV op. Surrounding: 360º Small fish: 1cm/0.5º

Strategy gamers (2) Map: 30k pixel Missile: 3 pixel

Experiment

Results

• 1st exp: large static documents– Task completion: 21% and 36% faster

• 2nd exp: dynamic dual attention task– Error rate only 1/3 of two-monitor setup

What we learned

• We thought:Chip designers need it

• We learned:Real strength is dynamic content– Have unexpected context information– Two monitoring tasks at the same time– Immersive tele-presence,

remote operated vehicles

Further reading on f+c screens

[1] P. Baudisch, N. Good, and P. Stewart. Focus Plus Context Screens: Combining Display Technology with Visualization Techniques. In Proceedings of UIST ‘01, Orlando, FL, November 2001, pp.31-40.

[2] P. Baudisch, N. Good, V. Bellotti, and P. Schraedley. Keeping Things in Context: A Comparative Evaluation of Focus Plus Context Screens, Overviews, and Zooming. To appear in Proceedings of CHI 2002, Minneapolis, MN, April 2002.

[3] P. Baudisch and N. Good. Focus Plus Context Screens: Displays for Users Working with Large Visual Documents. To appear in CHI 2002 Extended Abstracts (Demo paper), Minneapolis, MN, April 2002.

[4] P. Baudisch. Focus Plus Context Screens. To appear in CHI 2002 Video Summaries, Minneapolis, MN, April 2002.

[5] P. Baudisch and N. Good. Focus Plus Context Screens: Visual Context and Immersion on the Desktop. To appear at SIGGRAPH 2002 (Demo paper), San Antonio, TX, July 2002. [PDF]

[6] Y. Bhattacharjee. In a Seamless Image, the Great and Small. In The New York Times, Thursday, March 14, 2002.

ENDEND

Talk Keeping Things in Context: A Comparative Evaluation of Focus Plus Context Screens, Overviews, and Zooming. Wednesday 2:30pm in room 102-D-F

Try it Focus Plus Context Screens, hand’s on demoAnytime in the Commons

Video The CHI Video proceedings, first video on the tape

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Surf http://www.patrickbaudisch.com

More P. Baudisch, N. Good, and P. Stewart. Focus Plus Context Screens: Combining Display Technology with Visualization Techniques. In Proceedings of UIST ‘01, Orlando, FL, November 2001, pp.31-40.

Y. Bhattacharjee. In a Seamless Image, the Great and Small. In The New York Times, Thursday, March 14, 2002.

Focus Plus Context Screens: Visual Context and Immersion on the Desktop. Emerging technologies demo at SIGGRAPH 2002, San Antonio, TX, July 2002.