Focus plus context screens Patrick Baudisch Nathan Good
Focus plus context screens Patrick Baudisch & Nathan Good CHI ’ 02 April 23 th 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
No reflections on focus screen Focus Context
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])
cl ip Linux/VNC app focus server e al sc input viewer context
Image viewer mouse fork ACDsee focus . gif ACDsee context e al sc input Photo shop . gif
What’s next?
Display technology homogeneous resolution 4 Visualization Same # of pixels focus plus context screen fisheye 4 5 overview plus detail 4 wall-size, hi-res display Tomorrow after lunch in Room 102 D-F
“Hand’s on” demo all week in the Commons`
Future work: Context. Wall Submitted to CSCW
Extra slides
Evaluation
Field study Static documents Dynamic Subject’s task Document/view Smallest object Web designer Page: 800 pixel Text: 10 pixel Mechanical engineer Polybot segment: 5 cm Pin: 1 mm Graphic designer Poster: 1 m Text: 1 cm Architect in remodeling Building: 50 m Wall: 10 cm Photogrammetry (2) Highway 2 miles Curb: 6 inches Geographic info. system County: 80 km Trees: 5 m Chip designers (2) Wafer: 12 cm Conductive path: 3 m Air traffic ctrl. tool builder Zone: 50 km Airplane: 50 m Ego shooter gamer Surrounding: 360º Distant opponent: 1º Submarine ROV op. Surrounding: 360º Small fish: 1 cm/0. 5º Strategy gamers (2) Map: 30 k pixel Missile: 3 pixel
Experiment
Results • 1 st exp: large static documents – Task completion: 21% and 36% faster • 2 nd 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.
Talk Keeping Things in Context: A Comparative Evaluation of Focus Plus Context Screens, Overviews, and Zooming. Wednesday 2: 30 pm in room 102 -D-F Try it Focus Plus Context Screens, hand’s on demo Anytime in the Commons Video The CHI Video proceedings, first video on the tape -----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. END
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