The influence of muscle groups on performance of multiple degree-of-freedom input
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Performance differences in the fingers, wrist, and forearm in computer input control
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
Navigation as multiscale pointing: extending Fitts' model to very high precision tasks
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Accuracy measures for evaluating computer pointing devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Peephole displays: pen interaction on spatially aware handheld computers
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
High precision touch screen interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Semantic pointing: improving target acquisition with control-display ratio adaptation
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
International Journal of Human-Computer Studies - Special issue: Fitts law 50 years later: Applications and contributions from human-computer interaction
Precise selection techniques for multi-touch screens
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Shift: a technique for operating pen-based interfaces using touch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Fitts' law as a research and design tool in human-computer interaction
Human-Computer Interaction
Back-of-device interaction allows creating very small touch devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part II
Giving a hand to the eyes: leveraging input accuracy for subpixel interaction
Proceedings of the 25th annual ACM symposium on User interface software and technology
Measuring the linear and rotational user precision in touch pointing
Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces
The impact of motion dimensionality and bit cardinality on the design of 3D gesture recognizers
International Journal of Human-Computer Studies
How low can you go?: human limits in small unidirectional mouse movements
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Input devices are often evaluated in terms of their throughput, as measured by Fitts' Law, and by their resolution. However, little effort has been made to understand the limit of resolution that is controllable or "usable" by the human using the device. What is the point of a 5000 dpi computer mouse if the human motor control system is far from being able to achieve this level of precision? This paper introduces the concept of a Device's Human Resolution (DHR): the smallest target size that users can acquire with an ordinary amount of effort using one particular device. We report on our attempt to find the DHR through a target acquisition experiment involving very small target sizes. Three devices were tested: a gaming mouse (5700 dpi), a PHANTOM (450 dpi), and a free-space device (85 dpi). The results indicate a decrease in target acquisition performance that is not predicted by Fitts' Law when target sizes become smaller than certain levels. In addition, the experiment shows that the actual achievable resolution varies greatly depending on the input device used, hence the need to include the "device" in the definition of DHR.