AirFlip: A Double Crossing In-Air Gesture using Boundary Surfaces of Hover Zone for Mobile Devices Hiroyuki Hakoda, Takuro Kuribara, Keigo Shima, Buntarou Shizuki, Jiro Tanaka; CHII 2015 Hello everyone. Although my oral English is poor, I will try my best to make all of you understand the paper I have read. Ok, let‘s go. This is a very short paper, 题目，about a new form of joint interactions on two mobile touchscreen devices. ZHOU LI 2016/05/23 keywords: hover gesture, mobile, input method, in-air gesture. IP Lab, IPS, Waseda Univ. Jinjia Zhou Master Thesis Midterm Presentation @ Waseda Univ. 2010.4

Contents Introduction Related Work Design of AirFlip Implementation Application Evaluation Discussion & Conclusion This is the contents of my presentation, it contains several parts: Then I will follow this contents to explain the paper I have read. IP Lab, IPS, Waseda Univ.

Introduction AirFlip is a Double Crossing in-air gesture using boundary surfaces of hover zone for mobile diveces. Users often connect two mobile devices at close range to transfer les such as pictures and movies from one device to another. now, we present HoverLink, a new form of joint interactions on two mobile touchscreen devices such as smartphones and tablets using hover sensing capability. HoverLink allows users to connect two devices, manipulate the data on the devices, and disconnect them in a simple and continuous manner. a new form of joint interactions on two mobile touchscreen devices such as smartphones and tablets using hover sensing capability. IP Lab, IPS, Waseda Univ.

Related Work ThickPad Interactions in the Air Continuous Interaction Space Pointable Air+Touch Push-Push Hover Widgets Bezel Swipe IP Lab, IPS, Waseda Univ.

Design of AirFlip Two variations: Just flipping the thumb(fig 1), used as a button. Twirling the thumb(fig 2&3), used such as a rotational angle of a map. IP Lab, IPS, Waseda Univ.

Implementation AirFlip is an Android application that monitors hover events CURRENTLY. AirFlip is recognized when hover events begin to appear and then disappear quickly(600ms) IP Lab, IPS, Waseda Univ.

Implementation There are two problems, AirFlip is incorrectly recognized in naïve implementation for the following two reasons. 1. AirFlip is recognized when users tap the screen, hover event occur before and after a tap. 2. AirFlip is recognized when users are searching for a target to touch, their thumb tends to enter and leave the top boundary of the hover zone frequently in this context. IP Lab, IPS, Waseda Univ.

Implementation Solutions To address problem 1, AirFlip is ignored when a touch event occurs within 50ms after hover eventsdisappear. To address problem 2, AirFlip is ignored when their thumb leaves the hover zone more than 600ms after their thumb has entered it. IP Lab, IPS, Waseda Univ.

Application 1 Rotating a map in map applications 2 Switching tabs in web browsers IP Lab, IPS, Waseda Univ.

Evaluation Participants: 8 males and 4 females aged from 20 to 25(mean=22.7, SD=1.29) Apparatus: a mobile device(ELUGA P P-03, OS: Android 4.2.2) with an approximately 4.7 inch touchscreen. Methods: compared the performance of the three methods for switching tabs: AirFlip, Bezel Swipe, and Touch. Procedure: ask the participants to perform this user study as accurately and rapidly as possible. IP Lab, IPS, Waseda Univ.

Evaluation Results and Analysis IP Lab, IPS, Waseda Univ.

Evaluation Results and Analysis IP Lab, IPS, Waseda Univ.

Discussion & Conclusion While we found much incorrect recognition lowered the performance of AirFlip in the evaluation, we considered that two factors of this problem can be addressed to improve the performance. 1. Accidental touching, users often touched the touchscreen accidentally while performing AirFlip. This problem maybe caused by hover zone being too narrow. Maybe to improved the sensing capability can solve the problem IP Lab, IPS, Waseda Univ.

Discussion & Conclusion 2. Incorrectly thinking users’ thumb has moved out of the hover zone. To address this problem, we plan to provide users with feedback such as vibration when users move their thumb out of the hover zone. IP Lab, IPS, Waseda Univ.

Discussion & Conclusion Moreover we plan to attach a protective case to a mobile device shown in the figure. This case is designed so that its side is higher than the surface of the device. With this case, users will be able to use AirFlip by flipping the side of the case. IP Lab, IPS, Waseda Univ.

Discussion & Conclusion Future work. For immediate future work, we plan to incorporate a haptic feedback and measure the performance of AirFlip using a protective case whose side is higher than the surface of the device. Furthermore, we also plan to implement a mobile device with hover sensing capability that can sense user's fingers in higher positions by using a vision-based approach. IP Lab, IPS, Waseda Univ.

Thank you! IP Lab, IPS, Waseda Univ.