Thursday, February 10, 2011

Paper Reading #7: Public Issues on Projected User Interface

Comments: Chris Kam, Aaron Kirkes.
Reference Information:
Title: Public Issues on Projected User Interface
Authors: Ju-Chun Ko, Li-Wei Chan, Yi-Ping Hung.
Venue: CHI 2010, April 10–15, 2010, Atlanta, Georgia, USA.

Summary: For their conference paper, the authors discussed how pico-projectors could affect how people use technology in social and public situations. Pico-projectors are small, self powered projectors which can be mounted inside of cell phones, cameras, and other devices of similar size. The authors stressed how the social issues surrounding pico-projectors needed to be solved in order for Projected User Interaces, or PUIs, to gain mainstream appeal.

The problem with projected user interfaces is that they take up a considerable amount of space in comparison to your typical cell phone screen, and can be directed in any location. This creates issues with invading someone's personal space, or directly shining a PUI on top of them. Even when a PUI users is attempting to be respectful, a sufficiently bright projector may cause annoying glares.

Furthermore, if PUIs really did take off, then the interaction between PUI users would also become an issue. The authors of this paper proposed a system in which PUIs are aware of other projected inferaces operating in the area, so they could communicate to each other in order to not project on top of each other.

Discussion: This article raised several interesting points. Their suggested solutions seemed highly complex, relying on industry standardizations or government intervention in several cases. Also, the issue remains that projected user interfaces bring up privacy and public decency concerns.

There may be a day that projected user interfaces are common place, but I foresee people being perfectly content and happy with their cell phone screens for the extended future. Pico-projectors will most likely remain a niché method of sharing things such as video, pictures, or presentations to a small group of people.

2 comments:

  1. Yea, I agree. I don't believe this would ever become a problem. Societal courtesy would definitely not let this happen as it would be very frowned upon to use these devices in crowded public places.

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  2. Projected user interfaces sound really interesting, but I agree that there would definitely be privacy issues. It might be fun to play around with, but I can't see people giving up the privacy of cell phone screens for something like this.

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