A framework for prototyping telecare applications

[[abstract]]Telecare is the term for providing remote care to less able people such as elderly people and babies. A elecare application may be composed of several software and hardware components. The typical deployment structure is a distributed environment for hosting these interconnected components. In this paper, we design a software framework that is suitable for prototyping a telecare application. The framework is a realization of the service oriented architecture (SOA). Therefore an application is implemented as a few services. The Extensible Messaging and Presence Protocol (XMPP) network is the infrastructure for service collaboration. The flexibility of the XMPP allows dynamic configuration of the services and thus good for the prototyping purpose. At the end of the paper, we demonstrate a telecare application based on our framework. The analysis, design, and implementation are described to show the effectiveness and feasibility of the framework.[[notice]]補正完畢[[journaltype]]國外[[incitationindex]]EI[[ispeerreviewed]]Y[[booktype]]紙本[[booktype]]電子版[[countrycodes]]TW

Preliminary Survey of Multiview Synthesis Technology

[[abstract]]With the maturity of digital camera technology, it is feasible to form an array of cameras. The major usage of a camera array is to acquire different views of a scene in one shot. The captured data can be used to analyze the depths of the objects. Once we have the 3D model, we can synthesize virtual views, relight the scene, etc. The potential applications are virtual reality and augmented reality. In order to investigate the multiview technology, we studied the fundamental concepts, including the single lens camera, the eccentric lens camera, the plenoptic camera, and the multiview camera. We also discussed a few application examples for understanding the practical usages. The study showed that the initial depth estimation technology becomes important nowadays in providing photo realistic natural feel to people. The application areas were also extended to entertainment, and also to some crucial tasks such as medical operations and combat missions.[[conferencetype]]國際[[conferencedate]]20101015~20101017[[conferencelocation]]Darmstadt, German

Electrical Network Frequency as a Tool for Audio Concealment Process

[[abstract]]We live in a digital era. Digital contents may be produced by digital equipments or by converting old analog recordings. With the rapid growth of digital contents, digital archiving technology is demanded. Different types of contents require different processing techniques. In this paper, we focus on digital audio contents. The related techniques, such as forensics, authentication, and error concealment, were studied. When converting audio tapes to digital files, sometimes a certain automatic error detection and concealment is needed. However, traditional audio tapes were recorded without any error recovery information. Based on the restriction, we proposed a scheme that incorporates the electrical network frequency (ENF) as a tool for detecting damaged audio segments. The goal is to help people identifying candidate concealment segments. When using in an archiving application, it reduces the manpower as well as increases the accuracy of the generated meta-data.[[conferencetype]]國際[[conferencedate]]20101015~20101017[[iscallforpapers]]Y[[conferencelocation]]Darmstadt, German

A genetic programming based scheme for combining image operators

[[abstract]]Sophisticated image processing is usually nonlinear and difficult to model. In addition to the conventional image processing tools, we need some alternatives to bridge the gap between low-level and semantic level computation. This paper presents an idea of image processing scheme. We transform an image into different representations; feed the representations to the proper cellular automaton (CA) components to produce the information images; use the information images as the inputs to the combination program; and finally get the processed result. To identify the needed transforms, the CA transition rules, and the combination expression, we adopt genetic programming (GP) and cellular programming (CP) to search for the configuration. The searched configuration separates the parallelizable and sequential parts of the program. We don't enforce the linearity of the program, and it is likely that the searched result matches to the nonlinear nature of human semantics.[[sponsorship]]IEEE; European Association for Biometrics[[conferencetype]]國際[[conferencedate]]20120718~20120720[[booktype]]紙本[[iscallforpapers]]Y[[conferencelocation]]Piraeus, Greec

The Design of an XMPP-based Service Integration Scheme

[[abstract]]The advances in network-enabled software development raises the demands on the service oriented architecture (SOA). Popular implementations of SOA uses XML-based representations, such as SOAP and WSDL, to enable remote function invocation and service discovery. Our previous experiences show that a sophisticated XML representation is often over-complex for a controlled environment. We also found that the application composition is a high-level operation. Therefore, a proper infrastructure for hosting and delivering various kinds of services is required. We then proposed an XMPP-based solution to overcome these issues. A service is an XMPP client, and focus on how to interact with the other clients, the management of the service can be flexibly arranged through the proposed format of its full JID, and the fundamental security are handled by the XMPP server and the publisher-subscriber pattern.[[incitationindex]]EI[[conferencetype]]國際[[conferencedate]]20111014~20111016[[conferencelocation]]Dalian, Chin

A Prototype Scalable Readout System for Micro-pattern Gas Detectors

A scalable readout system (SRS) is designed to provide a general solution for different micro-pattern gas detectors. The system mainly consists of three kinds of modules: the ASIC card, the Adapter card and the Front-End Card (FEC). The ASIC cards, mounted with particular ASIC chips, are designed for receiving detector signals. The Adapter card is in charge of digitizing the output signals from several ASIC cards. The FEC, edged-mounted with the Adapter, has a FPGA-based reconfigurable logic and I/O interfaces, allowing users to choose various ASIC cards and Adapters for different types of detectors. The FEC transfers data through Gigabit Ethernet protocol realized by a TCP processor (SiTCP) IP core in field-programmable gate arrays (FPGA). The readout system can be tailored to specific sizes to adapt to the experiment scales and readout requirements. In this paper, two kinds of multi-channel ASIC chips, VA140 and AGET, are applied to verify the concept of this SRS architecture. Based on this VA140 or AGET SRS, one FEC covers 8 ASIC (VA140) cards handling 512 detector channels, or 4 ASIC (AGET) cards handling 256 detector channels. More FECs can be assembled in chassis to handle thousands of detector channels.Comment: 6 pages, 7 figures, 2 table