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CHI
2004
ACM
14 years 8 months ago
Sharp or smooth?: comparing the effects of quantization vs. frame rate for streamed video
We introduce a new methodology to evaluate the perceived quality of video with variable physical quality. The methodology is then used to assess an existing guideline that high fr...
John D. McCarthy, Martina Angela Sasse, Dimitrios ...
CHI
2010
ACM
13 years 7 months ago
Graspables revisited: multi-touch vs. tangible input for tabletop displays in acquisition and manipulation tasks
We present an experimental comparison of multi-touch and tangible user interfaces for basic interface actions. Twelve participants completed manipulation and acquisition tasks on ...
Philip Tuddenham, David S. Kirk, Shahram Izadi
CIVR
2010
Springer
176views Image Analysis» more  CIVR 2010»
13 years 5 months ago
Interacting with location-based multimedia using sketches
We propose a set of sketch-based interaction techniques for efficient retrieval of multimedia related to locations. The user makes a simple sketch on a map to interact with it, in...
Gamhewage C. de Silva, Kiyoharu Aizawa
NORDICHI
2004
ACM
14 years 1 months ago
On-line adjustment of dwell time for target selection by gaze
In eye typing systems, a dwell time that adjusts to the user’s natural typing speed is highly desirable. We present an algorithm for on-line adjustment of dwell time developed a...
Oleg Spakov, Darius Miniotas
EICS
2009
ACM
14 years 2 months ago
Engineering crowd interaction within smart environments
Smart environments (e.g., airports, hospitals, stadiums, and other physical spaces using ubiquitous computing to empower many mobile people) provide novel challenges for usability...
Michael D. Harrison, Mieke Massink, Diego Latella