in-class review multi-user interaction using handheld projectors by xiang cao et al

IN-CLASS REVIEW

Multi-User Interaction using Handheld

Projectors

by

Xiang Cao et al.

Ivan Elhart - ECE 992 Ubiquitous ComputingUniversity of New Hampshire 10/07/2008

Strengths A novel idea of multi-user interaction using

handheld projectors Each interaction technique is demonstrated

through pictures They provided a video

Their results are based on informal user feedback without statistical analysis

Weaknesses

Hypotheses could be more clearly stated Pictures could focus more on the interaction The tracking system and interactions could be

better explained Performance of the interaction using handheld

devices could be studied in different light conditions

To study how alignment and synchronization between projectors effects users’ experience

To have a system with a static projection and multiple handheld projectors which can explore the static image (for example Museum)

Suggestions

IN-CLASS REVIEW

Shadow reaching: A New Perspective on

Interaction for Large Wall Displays

by

Garth Shoemaker et al.

Ivan Elhart - ECE 992 Ubiquitous ComputingUniversity of New Hampshire 10/07/2008

Strengths A new perspective on how shadows (real and

virtual) can be used as a user input

Results were based on informal observation of six first time users

Writing style could be improved• “When designing shadow-based interactions, certain choices

must be made.”

Weaknesses

Problems, goals, and hypothesis could be more clearly stated even though they were restated several times through the paper

When will inconsistent lighting and blurring cause problems?

Suggestions

IN-CLASS REVIEW

Design of Human-Map System Interaction

by

Thomas Porathe and Johannes Prison

Ivan Elhart - ECE 992 Ubiquitous ComputingUniversity of New Hampshire 10/07/2008

Strengths Problem is efficiently introduced through real world

event (Norwegian high-speed ferry Sleipner) Laboratory experiment with two groups of users

• 45 amateur navigators• 30 Academy professionals

Statistical data analysis was performed and results were presented effectively on graphs

10x10 laboratory maze grid is far away from real world scenarios

Goals and hypothesis are not clear and they were restated several times

Weaknesses

Results could be explained in more detail with better conclusion

Order of the tasks and maps may effect results: specify how this was handled (randomized may not be ok)

Suggestions