Mobile Phone-based Interaction Techniques Essay -- Technology, Bluetoo

Many of the research presented in the field of mobile phone-based interaction techniques that have been developed so far fall into three main classes according to Sas & Dix [21]. In some research, the personal device effectively acts as an extended input device for text editing or pointing task. In others, the phone is used to upload and download media using standard content and protocols. The third class is where the mobile phone is a more integral part of the interaction, typically using the display of the device in concert with the public display. Ballagas et al [7] present a survey of the existed interaction techniques that use mobile phones as pointing device. Alongside with the survey, they present an analysis on these techniques based on the following taxonomy: position, orient, select, path, quantify, and text .The study concludes that the mobile phone is suitable devise for positioning tasks in various ways especially when interacting with public display in pervasive environ ment. Bellow we present some studies based on Sas & Dix classification [21]. Mobile phone as pointing devise: As a research area, several studies use image processing and visual recognition as a base in there interaction technique, since that most of the smart phones and handheld devices are equipped with digital camera. Jiang et al [1] attempted to take advantage of this fact by proposing a study to interact with display through mobile device camera. There method uses the position of the cursor on the display as the basic input source. The presented systems depend on a closed-loop of feedback between the handheld device and the display to provide continuous-visual feedback. This closed-loop starts with presenting the cursor on the display. Then, th... ...sts of three units: the Symbian client application running on the mobile phone. The role of this unit is to enable users to select a track from the presented list on the phone screen. The second unit is the server application running on a PC which counts the votes from all client unit users. The last one is a large public display which acts as the main user interface showing the track list and their votes. Kaviani et al [13] propose new user interface concept that take advantage of the input and output capability of large public display and mobile phone. They call this mode of interface as â€Å"dual display†, which allows users to execute multimedia user interfaces across both large and small display types. By shifting parts of a user interface down to a personal mobile device number of problems originating from limitations in large display real estate can be solved.