3,759 research outputs found
uLog::Towards attention aware user-system interactions measurement
No full textIn user interface development, it is essential to find the balance between grasping and, subsequently, holding attention and providing an optimal information density both in the center and periphery of focus, refraining from information overload. This process is like balancing on a thin line: the exact amount and optimal manner of information presentation are crucial. In this paper, we provide an outline on how user interface development can be facilitated, using the program uLog, developed by Noldus IT
Using motion capture data to generate and evaluate motion models for real-time computer animation
No full textvan Welbergen H. Using motion capture data to generate and evaluate motion models for real-time computer animation. In: Spink A .J, Ballintijn MR, Bogers ND, et al., eds. Proceedings of Measuring Behavior 2008, 6th International Conference on Methods and Techniques in Behavioral Research. Wageningen: Noldus Information Technology; 2008: 26-27
Multi-modal Behavioral Cues from Bodily Interaction in Ambient Entertainment Applications
No full textExertion interfaces require bodily activity. Users have to perform exercises, they have to dance, they have to golf or football, and they have to train particular bodily skills. Unlike game interfaces where we can observe lots of research activity recently trying to define, interpret and evaluate issues such as ‘flow’ and ‘engagement’, in exertion interfaces these concepts need to be reconsidered and new ways of evaluation have to be defined. Here we embed exertion interface research in ambient intelligence and entertainment computing research. Examples are discussed and views on evaluation are expressed
Measuring Behavior using Motion Capture
No full textMotion capture systems, using optical, magnetic or mechanical sensors are now widely used to record human motion. Motion capture provides us with precise measurements of human motion at a very high recording frequency and accuracy, resulting in a massive amount of movement data on several joints of the body or markers of the face. But how do we make sure that we record the right things? And how can we correctly interpret the recorded data? In this multi-disciplinary symposium, speakers from the field of biomechanics, computer animation, human computer interaction and behavior science come together to discus their methods to both record motion and to extract useful properties from the data. In these fields, the construction of human movement models from motion capture data is the focal point, although the application of such models differs per field. Such models can be used to generate and evaluate highly adaptable and believable animation on virtual characters in computer animation, to explore the details of gesture interaction in Human Computer Interaction applications, to identify patterns related to affective states or to find biomechanical properties of human movement
<i>No se sabe</i>: entrevista a Lucas Gagliardi
No full textEntrevista al Licenciado y Profesor en Letras (UNLP) Lucas Gagliardi. Se especializa en literatura en lengua inglesa y en crítica genética. Se desempeña como profesor en la Universidad Pedagógica (UNIPE), en institutos de formación docente y escuelas secundarias. Ha participado en proyectos de investigación sobre archivos de escritores, publicaciones impresas. Participa en el programa de voluntariado universitario de la Facultad de Trabajo Social (UNLP) en articulación con la Biblioteca Ambulante del Hospital de Niños dictando talleres de lectura y escritura.Al hacer clic en el enlace que figura en "Documentos relacionados", pueden accederse a todos los trabajos de Lucas Gagliardi presentes en el repositorio.Radio Universidad Nacional de La Plat
Gas volume fraction and velocity profiles: vertical and inclined bubbly air-water flows
No full textUpward inclined gas-liquid flows are frequently encountered in the oil industry and data relating to the local gas volume fraction distribution and the local gas velocity distribution is important, for example, in pressure gradient prediction and in modeling oil well 'blowouts'. In this paper measurements are presented of the local gas volume fraction distribution and the local axial gas velocity distribution which were taken in bubbly air-water flows in an 80 mm diameter pipe which was inclined at angles of 0°, 15° and 30° to the vertical. Qualitative arguments are presented to explain the influence of the liquid superficial velocity on the local gas volume fraction distribution in inclined flow and also to explain the very high axial gas velocities observed towards the upper side of the inclined pipe
Ambulatory estimation of ankle and foot dynamics and center of mass movement
No full textTraditionally, human body movement analysis is done in socalled ‘gait laboratories’, equipped with several measurement systems such as optical position measurement systems, EMG or force plates. The measured signals are used to estimate important gait variables. An important variable is the center of mass, an imaginary point at which the total body mass can be assumed to be concentrated. Several methods exist for center of mass estimation, of which the segmental kinematics method and the double integration of ground reaction force method are the most important ones. Other important variables are joint moment and powers. These can be estimated from estimations of body movement and ground reaction forces by applying inverse dynamics methods. A major drawback of the existing systems is the restriction to the laboratory environment. Therefore research is required for the development of measurement systems to perform these measurements in an ambulatory environment. The objective of this study is to give an overview of the possibilities of the forceshoe. The forceshoe is an ambulatory measurement system able to measure the ground reaction force and movement of foot and ankle
- …
