This paper describes a field study conducted with our system, T-Leap, a telepresence system connecting one person (the Viewer), situated indoors, with multiple destinations (the Nodes), that roam outdoors. Here, each Node is a person wearing a module that includes a 360-degree camera and a microphone-speaker. Through our study, we demonstrate that T-Leap enables the Viewer to perform various interactions with the Nodes including being helped by them, collaborating with them, and guiding them. These interactions were demonstrated through three studies completing different tasks: 1) Nodes purchasing souvenirs for the Viewer, 2) Nodes finding objects in the park, and 3) Viewer guiding Nodes to purchase things. The studies were primarily conducted with Taiwanese locals and Japanese visitors in Taipei. Throughout the studies, we found that T-Leap worked especially well for mediating communication between a Viewer with local knowledge acting as a guide and several Nodes who were being guided. To conclude the paper, we broadly discuss our findings, the lessons we learned from our field study, and present recommendations for the future development of mobile and wearable telepresence systems.

Blockchain technology has recently become popular and its use in business and industry has increased, especially in finance and technology. A blockchain wallet plays a vital role in blockchain industry, but it is difficult to understand and get started, as well as hard to learn how to use blockchain wallet. From the aspect of Interaction Design, we proposed a blockchain cryptocurrency wallet that combine with augmented reality and crypto technology, that is, an Augmented Crypto Wallet (CryptoAR Wallet). We except that browsing and viewing virtual information (On-Chain User Data) through augmented reality, will shorten the distance between user and blockchain wallet services. Though our preliminary design, development and user testing, this in-development application shows its potential on increasing the level of trust and satisfactions, with more comprehensive user experience.

In this paper, we describe a simple and light way of using 4G LTE low-cost phone as blockchain cryptocurrencies wallet on-the-go. The main purpose of this project is to make general mobile phone user could easily use Crypto Wallet " a crypto currency wallet connected to the blockchain without installing an App, to get benefit from decentralized financial services such as e-commerce, Peer to Peer financial services etc. In this research, we have implemented a full-functional e-commerce Web App through WordPress combining with WooCommerce open-source package, with additional Crypto Wallet plugin compose by PHP installed, which allows user to create crypto wallet and make transaction on a very low-cost phone such like Nokia 8810 4GLTE, worth only $80. With the possibility of using low-cost phone to do Blockchain and cryptocurrency related operations, it may lead us to a more distributed commerce, and equally traded world. YouTube link: https://youtu.be/Dqmh-OgbvM8

During interaction in a virtual environment, haptic displays provide users with sensations such as vibration, texture simulation, and electrical muscle stimulation. However, as humans perceive object weights naturally in daily life, objects picked up in virtual reality feel unrealistically light. To create an immersive experience in virtual reality that includes weight sensation, we propose GravityCup, a liquid-based haptic feedback device that simulates realistic object weights and inertia when moving virtual handheld objects. In different scenarios, GravityCup uses liquid to provide users with a dynamic weight sensation experience that enhances interaction with handheld objects in virtual reality.

This paper presents i-m-Space, an interactive multimedia rehabilitation space that helps the post-surgery recovery of breast cancer patients. Our goal is to improve patients' physical therapy and psychological relaxation experience through careful applications of multimedia technology. i-m-Space consists of three types of breathing-based relaxation and three types for interactive exercise-based rehabilitation.

This paper presents a programmable infrared (IR) technique that utilizes invisible, programmable markers to support interaction beyond the surface of a diffused-illumination (DI) multi-touch system. We combine an IR projector and a standard color projector to simultaneously project visible content and invisible markers. Mobile devices outfitted with IR cameras can compute their 3D positions based on the markers perceived. Markers are selectively turned off to support multi-touch and direct on-surface tangible input. The proposed techniques enable a collaborative multi-display multi-touch tabletop system. We also present three interactive tools: i-m-View, i-m-Lamp, and i-m-Flashlight, which consist of a mobile tablet and projectors that users can freely interact with beyond the main display surface. Early user feedback shows that these interactive devices, combined with a large interactive display, allow more intuitive navigation and are reportedly enjoyable to use.

This study of mobile persuasion system explores the use of a mobile phone, when attached to an everyday object used by an everyday behavior, becomes a tool to sense and influence that behavior. This mobile persuasion system, called Playful Bottle system, makes use of a mobile phone attached to an everyday drinking mug and motivates office workers to drink healthy quantities of water. A camera and accelerometer sensors in the phone are used to build a vision/motion-based water intake tracker to detect the amount and regularity of water consumed by the user. Additionally, the phone includes hydration games in which natural drinking actions are used as game input. Two hydration games are developed: a single-user TreeGame with automated computer reminders and a multi-user ForestGame with computer-mediated social reminders from members of the group playing the game. Results from 7-week user study with 16 test subjects suggest that both hydration games are effective for encouraging adequate and regular water intake by users. Additionally, results of this study suggest that adding social reminders to the hydration game is more effective than system reminders alone.

In this paper we introduce a tubular interface, the i-m-Tube, which provides convenient user interaction with multimedia content by multi-touch input and multi-resolution display. With its tubular surface, the i-m-Tube is suitable for displaying panoramic image content like the Chinese scroll painting "Along the River During the Ch'ingming Festival" which has been regarded as a national treasure and widely known by its extraordinary width and its various details. The strength of our system is that it is not just suitable for displaying panoramic content, but also possible to create an intuitive and natural context for user interaction with multimedia content displayed on the i-m-Tube by multi-finger touch. It also provides a high resolution area on demand, which is projected by a steerable projector in a Full-HD resolution. We have developed our system as an interface which can be applied adaptively to different applications, having the features of multi-touch and multi-resolution interactivity on a tubular display. In this work, we have implemented several prototypes designed for different applications, like "Tetris360" aiming on co-op arcade gaming, and "Panoramic Cover Flow" for interactive digital signage, to show the capabilities and opportunities of the i-m-Tube display system. With our preliminary experiments on the i-m-Tube, it is exciting to see the potential of the i-m-Tube as a new interface for people to meet the interactive multimedia touch in this generation.

Nowadays, many people started to produce personal web pages, and most web pages contain multimedia content. However, there are some problems with the design of web content, the web editor provided by web pages is very inconvenient, and there also exists the inconsistent problem on web content when the content had been accessed. To resolve these problems, we propose a multimedia on-line editing technique that enables users to edit web content and add comments on-line. In addition, web content on different web sites can be easily accessed by our system. The original web content that is accessed can be updated at the same time so that both versions are the same. The proposed system can also be used to e-learning. This function helps people who produce abundance and a large number of teaching materials, and it facilitates interaction and communication among users.