User Perception of Touch Screen Latency

Anderson, Glen J.; Doherty, Rina; Ganapathy, Subhashini

doi:10.1007/978-3-642-21675-6_23

Cited by 22 publications

(13 citation statements)

References 5 publications

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“…For cables B and C, signal-to-noise-ratio without filtering is comparable to that of standard capacitive touchscreen controllers (25:1, [3]). For touches, latency is roughly comparable to standard touchscreen setups (80ms, [1]) and seems adequate for many applications [1]. We can stabilize the recognized touch location using the aforementioned filter without adding any latency.…”

Section: Setupmentioning

confidence: 96%

“…We then took the maximum noise level of 200 frames. For a discussion of signal to noise ratios, see Atmel's Touch Sensor Design Guide [1]. To give a better overview of the expected performance, we computed all results without filtering (respective first row) and using a 32 sample adaptive moving average filter (respective second rows).…”

Section: Setupmentioning

confidence: 99%

“…Traditional touch sensing technologies, such as capacitive [4] or resistive sensing [16], require at least O(n) cable connections to drive an n x n sensing grid [1]. Large numbers of cables, however, result in thick and inflexible connections.…”

Section: Introductionmentioning

confidence: 99%

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Modular and deformable touch-sensitive surfaces based on time domain reflectometry

Wimmer¹,

Baudisch

2011

Proceedings of the 24th Annual ACM Symposium on User Interface Software and Technology

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Time domain reflectometry, a technique originally used in diagnosing cable faults, can also locate where a cable is being touched. In this paper, we explore how to extend time domain reflectometry in order to touch-enable thin, modular, and deformable surfaces and devices. We demonstrate how to use this approach to make smart clothing and to rapid prototype touch sensitive objects of arbitrary shape. To accomplish this, we extend time domain reflectometry in three ways: (1) Thin: We demonstrate how to run time domain reflectometry on a single wire. This allows us to touch-enable thin metal objects, such as guitar strings.(2) Modularity: We present a two-pin connector system that allows users to daisy chain touch-sensitive segments. We illustrate these enhancements with 13 prototypes and a series of performance measurements. (3) Deformability: We create deformable touch devices by mounting stretchable wire patterns onto elastic tape and meshes. We present selected performance measurements.

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Section: Setupmentioning

confidence: 96%

Section: Setupmentioning

confidence: 99%

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Modular and deformable touch-sensitive surfaces based on time domain reflectometry

Wimmer¹,

Baudisch

2011

Proceedings of the 24th Annual ACM Symposium on User Interface Software and Technology

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“…Extra high latencies have been shown to significantly reduce the usability of a touch device. 6 Latency exists in all computing devices, not just touch screens. However, the effect is much more pronounced with direct touch interfaces.…”

Section: Latencymentioning

confidence: 99%

“…As such, direct touch interfaces do not so much track the finger as belatedly catch up. Extra high latencies have been shown to significantly reduce the usability of a touch device …”

Section: Introductionmentioning

confidence: 99%

The effects of latency and motion blur on touch screen user experience

Dietz

2014

Jnl Soc Info Display

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-Touch interfaces are designed to be metaphors for physically manipulating virtual objects. However, this direct manipulation illusion is broken by the nonidealities of the device. We decouple and show the impact of touch-to-display latency and motion blur on the user experience of a touch system. Using a custom device, we achieve latencies down to~1 ms, with frame rates up to 1000 Hz. Motion blur is reduced independently of frame rate using synchronized display modulation. Optimizing these metrics yields a dramatic improvement in the user experience, demonstrating the opportunity for higher performance in touch devices.

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