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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 Computing University of New Hampshire 10/07/2008. Strengths. A novel idea of multi-user interaction using handheld projectors

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IN-CLASS REVIEW Multi-User Interaction using Handheld Projectors by Xiang Cao et al .

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  1. IN-CLASS REVIEWMulti-User Interaction using Handheld ProjectorsbyXiang Cao et al. Ivan Elhart - ECE 992 Ubiquitous Computing University of New Hampshire 10/07/2008

  2. Strengths • A novel idea of multi-user interaction using handheld projectors • Each interaction technique is demonstrated through pictures • They provided a video

  3. Weaknesses • Their results are based on informal user feedback without statistical analysis

  4. Suggestions • 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)

  5. IN-CLASS REVIEWShadow reaching: A New Perspective on Interaction for Large Wall DisplaysbyGarth Shoemaker et al. Ivan Elhart - ECE 992 Ubiquitous Computing University of New Hampshire 10/07/2008

  6. Strengths • A new perspective on how shadows (real and virtual) can be used as a user input

  7. Weaknesses • 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.”

  8. Suggestions • 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?

  9. IN-CLASS REVIEWDesign of Human-Map System InteractionbyThomas Porathe and Johannes Prison Ivan Elhart - ECE 992 Ubiquitous Computing University of New Hampshire 10/07/2008

  10. 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

  11. Weaknesses • 10x10 laboratory maze grid is far away from real world scenarios • Goals and hypothesis are not clear and they were restated several times

  12. Suggestions • 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)

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