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F-Pointer: Prototype testing of the finger-manipulated device

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Presentation on theme: "F-Pointer: Prototype testing of the finger-manipulated device"— Presentation transcript:

1 F-Pointer: Prototype testing of the finger-manipulated device
Remberto Martinez Gonzalez NIT 2003 NIT 2003: finger manipulation device

2 NIT 2003: finger manipulation device
Contents 1/2 Introduction Finger manipulation techniques (FMT) Devices: needs and problems Research plan Objectives Schedule Methods Materials NIT 2003: finger manipulation device

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Contents 2/2 Description of test Experiment setup Preliminary results Discussions of results Applications Conclusions References NIT 2003: finger manipulation device

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Introduction 1/3 Finger manipulation techniques (FMT) Needs of input devices: wearable computing, mobiles phones. Task: pointing and selection, text entry input Examples touch pad - finger track ball - hand and finger mouse - hand and finger rubber stick - finger joystick - hand and finger Anatomy of hand, fingers. The best tool The problem [1] NIT 2003: finger manipulation device

5 NIT 2003: finger manipulation device
Introduction 2/3 [4] Nozomu MATSUI and Yoshikazu YAMAMOTO, A New Input Method of Computers with One CCD Camera: Virtual Keyboard, INTERACT’01, pp Function of device: portable, independent of user, wearable, interactive obtrusive or not virtual keyboard: expensive solution [2,3]Y. Nakamura, Advanced Robotics: Redundancy and Optimization. Reading, Massachusetts: Addison-Wesley, 1991. NIT 2003: finger manipulation device

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Introduction 3/3 Problem miniaturisation in mobile devices and wearable computing. designing inexpensive sensitive techniques for recording finger motion and position without direct contact or special fixation to finger. NIT 2003: finger manipulation device

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Research Plan 1/3 Objectives The project explore the developing of new techniques for human computer interaction. Usability testing of F-Pointer prototype. NIT 2003: finger manipulation device

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Research Plan 2/3 Schedule NIT 2003: finger manipulation device

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Research Plan 3/3 Methods Overview FMT techniques Usability investigation Materials Hardware: desktop PC, F-pointer Software: OS, test entry input NIT 2003: finger manipulation device

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Materials Experimental setup pointing device. calibration software. Tool developed + Joystick driver desktop PC, SB + game port + speaker Users: novice, dominant hand, PC experience, gender, sessions learning time: 5 minutes NIT 2003: finger manipulation device

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F-Pointer device F-Pointer prototype & principles IR LED IR-Photodiode NIT 2003: finger manipulation device

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Software used in Test driver for Joystick & game port VB Interface: snapshot of program Task: text input (afap) 20 independent words, randomly generated in keyboard layout Output: user performance (wpm, errors, Rtime) NIT 2003: finger manipulation device

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Preliminary results 1/2 CPS = inputChar / time  = numChar / inputChar speed =  * CPS NIT 2003: finger manipulation device

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Preliminary results 2/2 NIT 2003: finger manipulation device

15 Discussions and perspectives
Users stressed position for arm, hand. Better: lifted like phone or resting arm. Learning time & previous knowledge. Device sensitivity, best area of performance Software sound feedback & keyboard layout could be improved Task real text entry input: text dictation, creation. NIT 2003: finger manipulation device

16 NIT 2003: finger manipulation device
Applications mobile phone embedded, hybrid input device on mouse or on keyboard or stand alone. New Computer Mouse developed to prevent Mouse Arm Syndrome. Johan ULLMAN, Fredrik WARTENBERG, Pia ULLMAN, Nils KANGAS by using Ullman mouse like a pen, muscles in the forearm and upper arm are at rest and the user's hand and forearm are in a more natural position, rather than being twisted around horizontally, as they are when a mouse is used [5,6] NIT 2003: finger manipulation device

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Conclusions The results of the project can be used for development and assessment of input devices and new features in user interfaces. NIT 2003: finger manipulation device

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References [1] [2] [3] [4] [5] [6] Motionless Electronic Pen [7..] References used in NIT 2003 lectures NIT 2003: finger manipulation device

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Snapshots << NIT 2003: finger manipulation device

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Snapshots 2/2 << NIT 2003: finger manipulation device

21 NIT 2003: finger manipulation device
Anexes 1/2 << NIT 2003: finger manipulation device

22 NIT 2003: finger manipulation device
Anexes 2/2 << NIT 2003: finger manipulation device

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