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The explosion of mobile computing and the sharing of content ubiquitously has enabled users to create and share memories instantly. Access to different data sources, such as location, movement, and physiology, has helped to create a data rich society where new and enhanced memories will form part of everyday life. Peer-to-Peer (P2P) systems have also increased in popularity over the years, due to...
With the latest technological advancements and the popularization of mobile devices nowadays, software development has evolved towards mobility. One of the main uses of mobile devices is to access social networks. They are becoming important tools in people's life. In this context, the Mingle project has the objective of creating a spontaneous social networks that is mainly accessed by mobile devices,...
In this paper, we propose a context-aware system framework characteristic of two novel features. First, this framework is capable of modeling highly complex usage scenarios as a finite state machine while having transitions controlled by context information. And, this framework is designed with Augmented Reality capability as an integral component in its overall architecture to enable augmented interaction...
Recently, as smartphone is becoming more and more popular, concern about security threats against Mobile Communication Device (MCD) is getting higher. The MCD can not only become the target of the cyber attacks, but also be used as the tool of the cyber attacks. This paper proposes a context-based remote security control scheme for MCD. The proposed scheme consists of two systems: Context-based Mobile...
We developed new interactive display system called the palm display. Our prototype system shows the image of graphical user interface on the palm and allows the user to have interaction with it using fingertip as they manipulate a common mobile device with stylus pen. We implemented this system using image processing technology and employed common projector and a networked PTZ camera. The feature...
As the ubiquitous communication environment advances, there is a demand for services that deliver the type of content appropriate for the preferences of the user. Services are already available that identify the user's preferences by analyzing his/her log information, and recommend items of content suitable for him/her. Methods of inferring the user's mood by partially analyzing pictograms frequently...
In this paper, we present a novel method for image annotation and retrieval on mobile device by using contextual information. Image annotation is an effective way for content based image retrieval. However, manual annotation is an expensive and time consuming work, especially for mobile device. Here, we propose a semi-automatic way to give image annotation on mobile device. There are rich contexts...
In this paper, we propose a context-aware Input Method Editor (IME) as a ubiquitous service for improving the input of text on mobile devices. In our proposed IME, it estimates the context of users according to position information from GPS (Global Positioning System) sensor or a presence information from the Internet. Simultaneously, it generates a personal context-aware dictionary dynamically from...
With a camera mobile phone, which has become a "must-have" device, 2D-barcode works as an interface to bridge the physical and digital world. As the notion of ubiquitous computing has permeated, developing a new 2D-barcode and its applications has been a growing trend worldwide. A 2D-barcode symbol consists of two broad areas: data area and guide area. The components of the latter is collectively...
Ubiquitous computing devices are transforming the way that learners study. But most of e-learning contents designed for PC are not suitable for handheld devices. In addition, some materials, irrelevant to learnerpsilas preferences or contextual environments, may affect the learning efficiency, and also increase the communication costs. In order to provide adaptive contents according to device capabilities...
Recently, pervasive computing has become a very hot research field. Future Creation Lab., Olympus Corp. and the University of Aizu are working on this future technology to facilitate people??s everyday life. The system we have proposed is named UMP-Percomp, a ubiquitous multiprocessor-based pipeline processing architecture to support high performance pervasive application development. Until now, we...
Today's mobile devices have inherited many of the characteristics of desktop computing -- including the assumptions that the user's full attention and dexterity can be focused on the interface. Unfortunately, on-the-go users are impaired by their mobility and often find desktop-style Windows Icon Menu and Pointer (WIMP) interfaces difficult, if not impossible, to use while performing their primary...
The deployment of mobile and ubiquitous computing in smart objects introduces the concept of an Internet of things which will offer new scenarios for learning processes. This paper presents this concept in relation with some other new alternatives of spaces for learning. A basic architecture for interaction is proposed and a set of prototypes that we have developed are also explained as part of an...
In this paper, we propose a novel user interface framework for controlling appliances in smart spaces based on the natural look of UI on physical appliances. When a user selects a specific target appliance to control, the proposed architecture and procedures provide NVUI (NaturalView User Interface) on a userpsilas mobile device to maximize userpsilas a priori familiarity with the user interface....
QR codes (2D barcodes) are used to encode and decode data at a rapid rate. Using camera phones to read two dimensional barcodes for various purposes is currently a popular topic in both research and in practical applications. But until now, the information provided by QR codes was solely static. What you see is exactly what was encoded. This paper proposes the notion of contextual QR codes that merge...
The key issue in achieving a pedestrian navigation service is to grasp the spatial context of pedestrians, which is mainly characterized by the places of their interest. We have developed a pedestrian navigation system uNavi, based on our proposed infrastructure that is capable of associating information services to the places of human interest. This paper focuses on the implementation and deployment...
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