Does the Hand Anthropometric Dimension Influence Touch Interaction?

Kim, Hyun Koo; Choe, Mungyeong; Choi, Yeongcheol; Park, Jaehyun

doi:10.1080/08874417.2017.1305876

Cited by 5 publications

(6 citation statements)

References 17 publications

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“…In this study, wider screens were preferred as hand lengths increased. When using smartphones, the thumb-reach zones of individuals with longer hands are wider [25][47] [48], and there is a positive correlation between hand and thumb lengths [45]. Therefore, the preference for wider screens observed in the group with longer hands is likely due to their wider thumb-reach zones.…”

Section: F Effects Of Handmentioning

confidence: 99%

How Wide Is Enough? Effects of Screen Height, Task Type, and Hand Length on Rollable Display Requirements

Lee

Kyung

2021

IEEE Access

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Although rollable displays must be unrolled for on-screen interaction, it is unknown whether screen height, task type, and hand length affect rollable display requirements. This study examined the effects of screen height, task type, and hand length on the rollable display requirements. A total of 30 young individuals (22.9±2.3 years; 10 in each hand-length group) performed three tasks (web searching, video viewing, and e-mail composition) using three prototypes with different screen heights (H) of 50, 120, and 190 mm. Dependent variables were preferred screen width, preferred screen width-to-height aspect ratio, user satisfaction, gripping comfort, device portability, design attractiveness, and gripping method. As screen height increased, the preferred screen width increased, but the preferred screen aspect ratio decreased. The 95th-percentile screen width (aspect ratio) of 100 mm (2:1) was required for 50H versus 204 mm (1.7:1) for 120H and 304 mm (1.6:1) for 190H. The highest 95 th -percentile screen aspect ratio of 1.9:1 was required for video viewing. The long-hand-length group preferred significantly wider screens for 190H only. Bilateral grasping was predominantly used for 50H and 120H, whereas non-grasping was for 190H due to limited thumb reach and insufficient screen reaction force. Considering user satisfaction, device portability, and design attractiveness, 120H was recommended, and a screen aspect ratio of 2:1 appeared sufficient for the performance of three mobile tasks on a 120H rollable screen.

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Section: F Effects Of Handmentioning

confidence: 99%

How Wide Is Enough? Effects of Screen Height, Task Type, and Hand Length on Rollable Display Requirements

Lee

Kyung

2021

IEEE Access

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“…In this study, it was found that the probability of choosing the wrong target was not related to the target's position. When the user selected the button on the touchscreen by hand, most errors occurred when the button was located at the lower-right, and the fewest errors were found at the upper-left [59]. In the case of controlling the cursor via head tracking, it is expected that the target location may have less influence on the ER than when using the hand.…”

Section: Influence Of Target Positionmentioning

confidence: 99%

Effect of Target Size, Location, and Input Method on Interaction in Immersive Virtual Reality

2021

Self Cite

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Although new virtual reality (VR) devices and their contents are actively being released, there are still not enough studies to prepare its interface/interaction standard. In this study, it was investigated whether specific interaction factors influenced task performance and the degree of virtual reality sickness when performing pointing tasks in immersive virtual reality. A smartphone-based VR device was used, and twenty-five targets were placed in a 5 × 5 layout on the VR experimental area that extended to a range similar to the human viewing angle. Task completion time (TCT) was significantly affected by target selection method (p < 0.001) and target size (p < 0.001), whereas the error rate (ER) significantly differed for the target selection method (p < 0.001) and not for the target size (p = 0.057). Target location was observed to be a factor affecting TCT (p < 0.001), but it did not affect the ER (p = 0.876). VR sickness was more severe when the target size was smaller. Gaze selection was found to be more efficient when accuracy is demanded, and manual selection is more efficient for quick selection. Moreover, applying these experimental data to Fitts’ Law showed that the movement time was found to be less affected by the device when using the gaze-selection method. Virtual reality provides a three-dimensional visual environment, but a one-dimensional formula can sufficiently predict the movement time. The result of this study is expected to be a reference for preparing interface/interaction design standards for virtual reality.

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“…Beyond studies that report some hand measures (e.g., [3,21]), two studies using those in analyzing accuracy are worth mentioning here. One is by Kim et al, who investigated the influence of thumb length and breadth on touch input [17]. They used three different target grids (respectively three different target sizes), shown at the bottom of a phone, and measured task completion time as well as the number of errors.…”

Section: Hand Anthropometricsmentioning

confidence: 99%

“…Prange et al concentrated on correlations of hand size with interaction measures. In addition the hand size, we also cover measures of the fingers that have been suggested to influence touch (e.g., finger span [3], thumb pad [17], and thumb length [26]). We find that thumb length has the greatest overall influence on touch and consequently use it in our investigation of interaction measure correlations.…”

Section: Hand Anthropometricsmentioning

confidence: 99%

“…Some anthropometric factors have already been investigated. For instance: the effects of thumb length and breadth on touch input [17]; negative effects of larger thumb pad sizes on touch precision [2]; and the correlation between hand size and touch performance [24]. However, these works have focused on a particular task such as typing, a particular area of the screen, or a subset of hand measures.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Hand Size on Touch Accuracy

Larsen

Jacobsen

Boring

et al. 2019

Proceedings of the 21st International Conference on Human-Computer Interaction With Mobile Devices and Services

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Touch accuracy is not just dependent on the performance of the touch sensor itself. Instead, aspects like phone grip or occlusion of the screen have been shown to also have an influence on accuracy. Yet, these are all dependent on one underlying factor: the size and proportions of the user's hand. To better understand touch input, we investigate how 11 hand features influence accuracy. We find that thumb length in particular correlates significantly with touch accuracy and accounts for about 12 % of touch error variance. Furthermore, we show that measures of some higher level interactions also correlate with hand size.

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Does the Hand Anthropometric Dimension Influence Touch Interaction?

Cited by 5 publications

References 17 publications

How Wide Is Enough? Effects of Screen Height, Task Type, and Hand Length on Rollable Display Requirements

How Wide Is Enough? Effects of Screen Height, Task Type, and Hand Length on Rollable Display Requirements

Effect of Target Size, Location, and Input Method on Interaction in Immersive Virtual Reality

The Influence of Hand Size on Touch Accuracy

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