6 research outputs found
A longitudinal study of text entry by gazing and smiling
Face Interface is a wearable device that combines the use of voluntary gaze direction and facial activations, for pointing and selecting objects on a computer screen, respectively. In this thesis a longitudinal study for entering text using Face Interface is presented. The aim of the study was to investigate entering text with Face Interface within a longer period of time. Twelve voluntary participants took part in an experiment that consisted of ten 15-minutes long sessions. The task of the participant in each session was to write text in fifteen minutes with Face Interface and an onscreen keyboard. Writing was done by pointing at the characters by gaze and selected by smiling. The results showed that the overall mean text entry rate for all sessions was 5.39 words per minute (wpm). In the first session the overall mean text entry rate was 3.88 wpm, and in the tenth session 6.59 wpm. The overall mean minimum string distance (MSD) error rate for all sessions was 0.25. In the first session the overall mean MSD error rate was 0.50 and in the tenth session 0.05. The overall mean keystrokes per character (KSPC) value for all sessions was 1.18. In the first session the overall mean KSPC value was 1.26 and in the tenth session 1.2. Subjective ratings showed that Face Interface was easy to use. The rating of the overall operation of Face Interface was 5.9/7.0 in the tenth session. Subjective ratings were positive in all categories in the tenth session
Sensor Developments for Electrophysiological Monitoring in Healthcare
Recent years have seen a renewal of interest in the development of sensor systems which can be used to monitor electrophysiological signals in a number of different settings. These include clinical, outside of the clinical setting with the subject ambulatory and going about their daily lives, and over long periods. The primary impetus for this is the challenge of providing healthcare for the ageing population based on home health monitoring, telehealth and telemedicine. Another stimulus is the demand for life sign monitoring of critical personnel such as fire fighters and military combatants. A related area of interest which, whilst not in the category of healthcare, utilises many of the same approaches, is that of sports physiology for both professional athletes and for recreation. Clinical diagnosis of conditions in, for example, cardiology and neurology remain based on conventional sensors, using established electrodes and well understood electrode placements. However, the demands of long term health monitoring, rehabilitation support and assistive technology for the disabled and elderly are leading research groups such as ours towards novel sensors, wearable and wireless enabled systems and flexible sensor arrays
Chinpad, un trackpad para usuarios con discapacidades f铆sicas
Las computadoras son instrumentos fundamentales para personas con discapacidades f铆sicas ya que posibilitan compensar funciones disminuidas o ausentes.
Las mismas facilitan la participaci贸n de personas con discapacidades en todos los niveles de la vida social, cultural y econ贸mica. Constituyen un medio por el cual personas con discapacidades pueden comunicarse, estudiar y recrearse equiparando oportunidades. En el presente trabajo se ataca la problem谩tica de desarrollar un medio que permita a una persona incapacitada de mover cualquier parte del cuerpo con excepci贸n de la cabeza, utilizar una computadora. Se busca as铆, brindar a usuarios que est谩n cautivos en un cuerpo sin movilidad que no les permite expresarse y/o comunicarse adecuadamente, una herramienta para que puedan hacerlo a trav茅s de una computadora.WCGIV - XI Workshop computaci贸n gr谩fica, im谩genes y visualizaci贸nRed de Universidades con Carreras en Inform谩tica (RedUNCI
Chinpad, un trackpad para usuarios con discapacidades f铆sicas
Las computadoras son instrumentos fundamentales para personas con discapacidades f铆sicas ya que posibilitan compensar funciones disminuidas o ausentes.
Las mismas facilitan la participaci贸n de personas con discapacidades en todos los niveles de la vida social, cultural y econ贸mica. Constituyen un medio por el cual personas con discapacidades pueden comunicarse, estudiar y recrearse equiparando oportunidades. En el presente trabajo se ataca la problem谩tica de desarrollar un medio que permita a una persona incapacitada de mover cualquier parte del cuerpo con excepci贸n de la cabeza, utilizar una computadora. Se busca as铆, brindar a usuarios que est谩n cautivos en un cuerpo sin movilidad que no les permite expresarse y/o comunicarse adecuadamente, una herramienta para que puedan hacerlo a trav茅s de una computadora.WCGIV - XI Workshop computaci贸n gr谩fica, im谩genes y visualizaci贸nRed de Universidades con Carreras en Inform谩tica (RedUNCI
Foundations and applications of human-machine-interaction
Der vorliegende Tagungsband zur 10. Berliner Werkstatt Mensch-Maschine-Systeme gibt einen Einblick in die aktuelle Forschung im Bereich der Mensch-Maschine- Interaktion. Einen besonderen Fokus stellt das Wechselspiel von Grundlagenforschung und anwendungsbezogener Forschung dar, was sich im breiten Themenspektrum widerspiegelt, welches von theoretischen und methodischen Betrachtungen bis hin zu anwendungsnahen Fragestellungen reicht. Dabei finden Inhalte aus allen Phasen des Forschungsprozesses Beachtung, sodass auch im Rahmen der 10. Berliner Werkstatt MMS wieder sowohl neue Untersuchungskonzepte als auch abschlie脽ende Befunde diskutiert werden. Zentrale Themengebiete sind u. a. Fahrer-Fahrzeug-Interaktion, Assistenzsysteme, User Experience, Usability, Ubiquitous Computing, Mixed & Virtual Reality, Robotics & Automation, Wahrnehmungsspezifika sowie Psychophysiologie und Beanspruchung in der Mensch-Maschine-Interaktion.The proceedings of the 10th Berlin Workshop Human-Machine-Systems provide an insight into the current research in the field of human-machine-interaction. The main focus lies on the interplay between basic and applied research, which is reflected in the wide range of subjects: from theoretical and methodological issues to application oriented considerations. Again all stages of the research process are represented in the contributions of the 10th Berlin Workshop HMS. This means new research concepts as well as final results are subject of this volume. Central topics include driver-vehicleinteraction, assistance systems, user experience, usability, ubiquitous computing, mixed and virtual reality, robotics & automation, perception specifics, as well as psychophysiology and workload in human-machine-interaction
Emotion and Stress Recognition Related Sensors and Machine Learning Technologies
This book includes impactful chapters which present scientific concepts, frameworks, architectures and ideas on sensing technologies and machine learning techniques. These are relevant in tackling the following challenges: (i) the field readiness and use of intrusive sensor systems and devices for capturing biosignals, including EEG sensor systems, ECG sensor systems and electrodermal activity sensor systems; (ii) the quality assessment and management of sensor data; (iii) data preprocessing, noise filtering and calibration concepts for biosignals; (iv) the field readiness and use of nonintrusive sensor technologies, including visual sensors, acoustic sensors, vibration sensors and piezoelectric sensors; (v) emotion recognition using mobile phones and smartwatches; (vi) body area sensor networks for emotion and stress studies; (vii) the use of experimental datasets in emotion recognition, including dataset generation principles and concepts, quality insurance and emotion elicitation material and concepts; (viii) machine learning techniques for robust emotion recognition, including graphical models, neural network methods, deep learning methods, statistical learning and multivariate empirical mode decomposition; (ix) subject-independent emotion and stress recognition concepts and systems, including facial expression-based systems, speech-based systems, EEG-based systems, ECG-based systems, electrodermal activity-based systems, multimodal recognition systems and sensor fusion concepts and (x) emotion and stress estimation and forecasting from a nonlinear dynamical system perspective