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| Content Provider | ACM Digital Library |
|---|---|
| Author | Karrer, Thorsten Link, Andreas Borchers, Jan Corsten, Christian |
| Abstract | Using a smartphone touchscreen to control apps mirrored to a distant display is hard, since the user cannot see where she is touching while looking at the distant screen. Tactile landmarks at the back of the phone can mitigate this problem, especially in landscape mode [3]: By moving a finger across these landmarks, the user can haptically estimate the finger position in proportion to the touchscreen. Upon pinching the thumb resting above the touchscreen towards that finger at the back, the finger position is transferred to the front and registered as a touch. However, despite proprioception, this technique leads to a shift between back and front position, denoted as pinch error. We investigated this error using different target locations, device thicknesses, and tilt angles to derive target sizes that can be acquired at a 96% success rate. |
| Starting Page | 185 |
| Ending Page | 189 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781450344081 |
| DOI | 10.1145/2935334.2935371 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2016-09-06 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Proprioception Pinch error Eyes-free Back-of-device |
| Content Type | Text |
| Resource Type | Article |
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