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Volume data representations are widely used in many different domains including medical imaging. Here, they are primarily accessed using WIMP interfaces on desktop PCs, while the use of handheld mobile devices to browse volume data is widely ignored. In this work, we present Volume Lens, an approach for displaying volume datasets on mobile hardware by implementing a novel interface that turns the...
Modern mobile devices, especially smartphones, are widely equipped with cameras, which enable their owners to capture every memorable moment or scenery, such as parties with friends. However, significant privacy concerns are posed by the potential possibility of revealing a large amount of privacy contained by photos, e.g., portrait of a person. World Driven Access Control (WDAC) [1], which triggered...
Many learning analytics techniques to capture the learner's real-time responses are computationally intensive for running on mobile devices. In this paper, we propose a personalized learning platform named the PETAL facilitated by an efficient learning analytics application to detect learners' level of attentiveness and the proximity of their eyes to mobile devices and then alert learners to be more...
Copy-and-paste (or cut-and-paste) have been a representative metaphor of segmented data exchange between electrical documents in a personal computer. Computing environment is now spreading over life space. Data exchange between mobile phones, tablet devices, and home electric appliances is expected to be intuitive and copy-and-paste is one effective metaphor for such a purpose. In this case, copy-and-paste...
Augmented Reality (AR) enhances real-world view with additional virtual information. This technique can be applied to a variety of industrial applications. It can be used to localize equipment in an industrial plant, to identify a dedicated device or to show its configuration. In addition, AR can be used in remote service situations, where remote experts are guiding local field workers in maintenance...
Computer stereo vision is an important technique for robotic navigation and other mobile scenarios where depth perception is needed, but it usually requires two cameras with a known horizontal displacement. In this paper, we present a solution for mobile devices with just one camera, which is a first step towards making computer stereo vision available to a wide range of devices that are not equipped...
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...
Virtual Reality is becoming more than a part of our everyday life, helping us to identify quickly the elements of the environment or to better entertain us. The purpose of this paper is to present an application framework that we are developing, in order to help others implement their own applications. In the first section the focus is set on the Augmented Reality basic concepts and the necessity...
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...
Gesture input interfaces for mobile devices with a touch screen have become widespread. Although gesture interfaces in common use are limited to the small screens of these mobile devices, pointing interfaces for large screens using handheld devices or attachments are common. However, these devices increase the user's cognitive load because they are unable to cancel the effect of spatial cognition...
In the following we will describe a novel method for decoding linear barcodes from blurry camera images. Our goal was to develop a algorithm that can be used on mobile devices to recognize product numbers from EAN or UPC barcodes.
The inability to identify people during group meetings is a disadvantage for blind people in many professional and educational situations. To explore the efficacy of face recognition using smartphones in these settings, we have prototyped and tested a face recognition tool for blind users. The tool utilizes Smartphone technology in conjunction with a wireless network to provide audio feedback of the...
We report qualitative consumer field trials of a prototype digital memory device known as SenseCam. We presented SenseCam to 25 consumers in the US (N=9), Japan (N=8), and South Korea (N=8) to determine initial interest and expected use cases. This was followed by respondents using an actual prototype camera for approximately one week and reporting on their experience. Actual use cases differed substantially...
In low-light conditions, the focus value curve or sharpness function that is used in passive auto-focusing becomes flat due to the increase in the noise level. This paper presents an enhanced low-light auto-focusing system model which provides performance improvements over our previously introduced low-light auto-focusing model. This is achieved by utilizing an indexed family of focus value curves...
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...
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 paper presents the implementation of a platform which allows the generation, annotation and retrieval of on-the-move multimedia tourist contents while on a tourist destination. The platform toggles the different stages of the processes involved on the cycle of life of the content: creation, indexation, storage and publication. The application has been implemented using the J2ME standard to take...
A low-cost intelligent mobile phone-based wireless video surveillance solution using moving object recognition technology is proposed in this paper. The proposed solution can be applied not only to various security systems, but also to environmental surveillance. Firstly, the basic principle of moving object detecting is given. Limited by the memory consuming and computing capacity of a mobile phone,...
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