Next Article in Journal
Threshold Analysis and Stationary Distribution of a Stochastic Model with Relapse and Temporary Immunity
Next Article in Special Issue
Navigators’ Errors in a Ship Collision via Simulation Experiment in South Korea
Previous Article in Journal
Transverse Kähler–Ricci Solitons of Five-Dimensional Sasaki–Einstein Spaces Yp,q and T1,1
Previous Article in Special Issue
Quantifying Differences among Ten Fingers in Force Control Capabilities by a Modified Meyer Model
Article

The Semantic Meaning of Hand Shapes and Z-Dimension Movements of Freehand Distal Pointing on Large Displays

Department of Design, National Taiwan University of Science and Technology, Taipei 106, Taiwan
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(3), 329; https://doi.org/10.3390/sym12030329
Received: 20 January 2020 / Revised: 13 February 2020 / Accepted: 20 February 2020 / Published: 25 February 2020
(This article belongs to the Special Issue Symmetry in Human Factors: Perception and Performance at Work)
It is difficult to select small targets in freehand distal pointing on large displays due to physical fatigue and jitter. Previous research proposed many solutions but not through the semantic meaning of hand behaviors. The purpose of this study is to investigate the hand behaviors, including hand shapes and motions in the Z-dimension between small and large target selections, by means of two controlled experiments. The generated results indicated that the following: (1) when interacting with a large display from a remote distance, users preferred to complete a low-precision task by the whole hand while using the finger in high-precision tasks. As a result, users moved small targets by the index finger gesture while moving large targets by open hand gesture; (2) selection of small targets led to hand stretching which might reduce the interaction distance; (3) the orientation had significant effects on hand motions in the Z-dimension. The relationship between orientation and hand motions in the Z-dimension is similar to a sinusoidal function; (4) mouse-like pointing had much impact on freehand interaction. Based on these results, some design guidelines for freehand interaction and design suggestions for freehand pointing were discussed. View Full-Text
Keywords: freehand interaction; pointing; hand gesture; large display; user behaviors freehand interaction; pointing; hand gesture; large display; user behaviors
Show Figures

Figure 1

MDPI and ACS Style

Chen, C.-H.; Wang, J.-L. The Semantic Meaning of Hand Shapes and Z-Dimension Movements of Freehand Distal Pointing on Large Displays. Symmetry 2020, 12, 329. https://doi.org/10.3390/sym12030329

AMA Style

Chen C-H, Wang J-L. The Semantic Meaning of Hand Shapes and Z-Dimension Movements of Freehand Distal Pointing on Large Displays. Symmetry. 2020; 12(3):329. https://doi.org/10.3390/sym12030329

Chicago/Turabian Style

Chen, Chien-Hsiung, and Jian-Li Wang. 2020. "The Semantic Meaning of Hand Shapes and Z-Dimension Movements of Freehand Distal Pointing on Large Displays" Symmetry 12, no. 3: 329. https://doi.org/10.3390/sym12030329

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop