ABSTRACT
In this paper, we present ArmMenu, a command input approach for distant displays. ArmMenu has a circular interface like pie menus and menu selection is performed by proprioception-based lateral arm movements. We implemented ArmMenu with an off-the-shelf body tracking device (Kinect) and conducted two experiments to validate its efficacy. In the first experiment, we explored the design space of ArmMenu by varying the number of menu items, with exposed or hidden menu modes. Users can operate up to 8-item menus with high selection accuracy (>98%). ArmMenu was fast and accurate even with the hidden menu mode. The second experiment compared the performance of ArmMenu and touchless marking menus. While having similar selection accuracy, ArmMenu was faster and more preferable by users. Our studies consequently demonstrate ArmMenu's effectiveness for command input on distant displays.
Acknowledgments
This work is supported by the National Key R&D Program of China (No. 2016YFB1001405); Key Research Program of Frontier Sciences, CAS (No. QYZDY-SSW-JSC041); Foundation of Jiangsu Province Science & Technology Department (No. BE2017104); Natural Science Foundation of China (No. 61602236); Natural Science Foundation of Jiangsu Province (No. BK20160801); China Postdoctoral Science Foundation (No. 2016M591843); and Postdoctoral Science Foundation of Jiangsu Province (No. 1501053B).
Disclosure statement
No potential conflict of interest was reported by the author(s).
Notes
1 Arm akimbo means hand on hips and elbow projecting outwards.
2 According to the time analysis in Experiment 1, participants on average took 350 ms to complete Step 1 (start task) shown in . Hence the threshold should be larger than 350 ms.