A novel distributed architecture for IoT image processing using low-cost devices and open internet standards

Industry 4.0 can be defined as the integration of computers and automation to current industrial processes, with addition of smart and autonomous systems leveraged by machine learning techniques. In this scenario, a compact, dependable and fast controller is desired, featuring low energy consumption, easily programming and maintenance, with no mobile parts. Nowadays, computing power in single board computers, e.g. the Raspberry Pi among others, has been increased at a very important rate. In just three generations, Pi computers offer almost a two-fold speed gain, when compared to first models. Its design, an underlying video driver with general capabilities of regular OSes, makes them quite suitable to build image processing systems at very low cost, with no mobile parts and low energy consumption. However, designing such a system for industrial image processing is a tough challenge, since it implies to integrate cameras, image processing libraries, database servers and application software with graphical user interface, in an already resource constrained device. This work presents a new architecture for this kind of systems, by means of open internet standards, using a self-contained, high performance web server to publish a RESTful API and a set of web pages that use latest HTML5 capabilities to manage USB webcams and system data. This proposal also integrates OpenCV as a compiled script on client-side using the new WASM paradigm, with an optimized storage for images using -industry-standard RDBMS and a modular design that can target Windows and Linux as well.Sociedad Argentina de Informática e Investigación Operativ

Web-Based Visualization of Very Large Scientific Astronomy Imagery

Visualizing and navigating through large astronomy images from a remote location with current astronomy display tools can be a frustrating experience in terms of speed and ergonomics, especially on mobile devices. In this paper, we present a high performance, versatile and robust client-server system for remote visualization and analysis of extremely large scientific images. Applications of this work include survey image quality control, interactive data query and exploration, citizen science, as well as public outreach. The proposed software is entirely open source and is designed to be generic and applicable to a variety of datasets. It provides access to floating point data at terabyte scales, with the ability to precisely adjust image settings in real-time. The proposed clients are light-weight, platform-independent web applications built on standard HTML5 web technologies and compatible with both touch and mouse-based devices. We put the system to the test and assess the performance of the system and show that a single server can comfortably handle more than a hundred simultaneous users accessing full precision 32 bit astronomy data.Comment: Published in Astronomy & Computing. IIPImage server available from http://iipimage.sourceforge.net . Visiomatic code and demos available from http://www.visiomatic.org

Abmash: Mashing Up Legacy Web Applications by Automated Imitation of Human Actions

Many business web-based applications do not offer applications programming interfaces (APIs) to enable other applications to access their data and functions in a programmatic manner. This makes their composition difficult (for instance to synchronize data between two applications). To address this challenge, this paper presents Abmash, an approach to facilitate the integration of such legacy web applications by automatically imitating human interactions with them. By automatically interacting with the graphical user interface (GUI) of web applications, the system supports all forms of integrations including bi-directional interactions and is able to interact with AJAX-based applications. Furthermore, the integration programs are easy to write since they deal with end-user, visual user-interface elements. The integration code is simple enough to be called a "mashup".Comment: Software: Practice and Experience (2013)

Client-Side Cornucopia : Comparing the Built-In Application Architecture Models in the Web Browser

Peer reviewe

Windows-pohjaisen myyntikonfiguraattorin muuntaminen web-pohjaiseksi sovellukseksi

Sales configrator is a key component of a home builder ERP system. In a typical sales meeting the home buyer sits down with a sales representative to select where the home should be build, what kind of home will be build and what extra options will be selected. The configurator needs to be able to calculate correct prices, enable/disable options based on rule sets and store the selections to a permanent storage. Traditionally this meeting has been organized at the home builder's premises using a desktop computer but further flexibility is often needed. It is a general trend that traditional platform dependent applications have been migrated to web applications. There are several benefits for the users to be able to run applications in a web browser on most of the devices they might use without the need to install any application on their devices. The continuous development of different web framework technologies have made this possible and easier than ever before. The goal of this thesis is to migrate an old Windows native sales configurator to a web application and to find out what benefits such migration is expected to yield and what kinds of obstacles need to be overcome. This thesis presents one possible way to create a web application UI using React web development framework and the back-end server access using ODATA web API. This thesis also presents two different ways (code quality measurements and performance evaluation) to measure the success of an application migration from Windows native C\# WebForms application to a JavaScript based web application.Myyntikonfiguraattori on tärkeässä roolissa omakotitalorakennuttajille suunnatuissa toiminnanohjausjärjestelmissä. Tyypillisesti myyntitapahtumassa kodin ostaja istuu välittäjän kanssa konfiguraattorin äärellä ja valitsee, minkälaisen talon hän haluaa, mihin se tulee rakentaa ja minkälaisia lisävalintoja ostaja mahdollisesti haluaa. Konfiguraattorin tehtävä on laskea talolle oikea hinta, näyttää/piilottaa valinnat niihin liittyvien sääntöjen perusteella ja tallettaa asiakkaan valinnat johonkin pysyvään tietokantaan. Perinteisesti tämä tapaaminen on järjestetty talonrakennuttajan tiloissa pöytäkoneen äärellä, mutta nykyään tapaaminen usein halutaan järjestää joustavammin asiakkaan ehdoilla. Nykysuuntauksen mukaisesti ohjelmistoja kehitetään usein suoraan web-sovelluksiksi tai vanhoja alustariippuvaisia sovelluksia muunnetaan web-sovelluksiksi. Kyvyssä ajaa sovellusta selaimessa on useita hyötyjä kuten se, että web-sovelluksia voi ajaa eri laitteilla eivätkä ne vaadi käyttäjää asentamaan mitään niihin. Erilaisten web-kehitystekniikoiden kehitys on tehnyt monimutkaisten web-sovellusten tekemisestä mahdollista ja helpompaa kuin koskaan aikaisemmin. Tämän diplomityön tavoitteena on muuntaa vanha Windows-pohjainen myyntikonfiguraattori web-sovellukseksi sekä samalla tutkia, mitä hyötyjä muuntamisesta on ja minkälaisia haasteita muuntamiseen sisältyy. Tämä diplomityö esittää yhden mahdollisen toteutustavan käyttäen React web-kehitysympäristöä sekä ODATA web-ohjelmointirajapintaa. Tässä työssä esitetään myös kaksi eri tapaa (koodin laadun estimointi ja suorituskyvyn evaluointi), joilla tämänkaltaisen muunnostyön onnistumista voi arvioida ja mitata

Open source technologies involved in constructing a web-based football information system

The current information systems and match analysis software associated to professional football output a huge amount of statistics. Many football professionals are particularly interested in real time information about the tactical plan occurring during the match, and the relations between that information and what was prepared in the training sessions. It is fundamental to have on the bench, and on-the-fly, the most relevant information each time they have to take a decision. In this paper, we present a set of open source technologies involved in building a multi-platform web based integrated football information system, supported in three main modules: user interfaces, databases, and the tactical plan detection and classification. We show that the selected technologies are suitable for those modules, allowing field occurrences to trigger meaningful information

BioIMAX : a Web2.0 approach to visual data mining in bioimage data

Loyek C. BioIMAX : a Web2.0 approach to visual data mining in bioimage data. Bielefeld: Universität Bielefeld; 2012