Visual Interaction Using QRCode On Mobile Device

• Main Authors: Chao-Tung Chen, 陳照東
• Other Authors: 林啟芳
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/12141169993171530338

碩士 === 元智大學 === 資訊工程學系 === 94 === The nature limitations on the mobile devices are the smaller screen size, inconvenience user input and limited user interface. The goal of this study is to propose a visual interaction technique by using 2D matrix QRCode on the mobile device. The concept is to put the captured image with low resolution from the camera-phone as an input, and make mobile phone as an decoder to recognize the code on it for further user interaction and services retrieving. The proposed method also solves the perspective distortion that easily caused by the mobile interactions such like tilting, oblique capturing with angles…etc. The input image with perspective distortion can be corrected by leveraging the characteristic of the QRCode, and provide a fast algorithm which considering the limited computing power on the mobile device, and finally we demonstrate a simple application to retrieve service by interact with QRCode and camera-phone without network enabled and complicated item selection.