Propagation, structural similarity and image quality

Póster presentado en SPIE Photonics Europe, Brussels, 16-19 April 2012.

Targetless image-based method for measuring displacements and strains on concrete surfaces with a consumer camera

Measurement of concrete strain through non-invasive methods is of great importance in civil engineering and structural analysis. Traditional methods use laser speckle and high quality cameras that may result too expensive for many applications. Here we present a method for measuring concrete deformations with a standard reflex camera and image processing for tracking objects in the concretes surface. Two different approaches are presented here. In the first one, on-purpose objects are drawn on the surface, while on the second one we track small defects on the surface due to air bubbles in the hardening process. The method has been tested on a concrete sample under several loading/unloading cycles. A stop-motion sequence of the process has been captured and analyzed. Results have been successfully compared with the values given by a strain gauge. Accuracy of our methods in tracking objects is below 8 μm, in the order of more expensive commercial devices.

High speed image techniques for construction safety net monitoring in outdoor conditions

Póster presentado en SPIE Photonics Europe, Brussels, 16-19 April 2012.

Image processing for safety assessment in Civil Engineering

Behaviour analysis of construction safety systems is of fundamental importance to avoid accidental injuries. Traditionally, measurements of dynamic actions in Civil Engineering have been done through accelerometers, but high-speed cameras and image processing techniques can play an important role in this area. Here, we propose using morphological image filtering and Hough transform on high-speed video sequence as tools for dynamic measurements on that field. The presented method is applied to obtain the trajectory and acceleration of a cylindrical ballast falling from a building and trapped by a thread net. Results show that safety recommendations given in construction codes can be potentially dangerous for workers.

La futura vida cotidiana en España: la sociedad de consumo

Las dinámicas que durante décadas han dado forma a la sociedad de consumo en España han entrado en crisis. Las consecuencias sociales e ideológicas van mucho más allá de lo económico. El consumo como fuente de identidad social y de legitimación política de las desigualdades inicia una nueva etapa matizada por la irrupción de las nuevas tecnologías. El futuro muestra una clara discontinuidad respecto al pasado. Las clases medias deberán reinventarse mediante formas alternativas de consumo, empleando estrategias que protejan su imagen de “status”. Este cambio afecta directamente a la legitimación del sistema y anticipa un periodo de tensión social, ya plasmado en la Spanish Revolution.

Discreta regente, la austriaca o Doña Virtudes. Las imágenes de María Cristina de Habsburgo

Más allá del mito de la discreta regente de España, María Cristina de Habsburgo ofrece una imagen poliédrica que puede contribuir a calibrar la importancia política, cultural y social de la representación simbólica de la corona. Las imágenes —oficial, de la oposición y populares— de María Cristina son analizadas desde diversas perspectivas: la consolidación de una monarquía en crisis tras el fallecimiento de Alfonso XII pocos años después de la República, la creación de una identidad nacional todavía no afirmada y la conformación de los estereotipos de género en torno al discurso de la separación de esferas. Imágenes que daban respuestas muchas veces divergentes a las circunstancias que distinguían a Maria Cristina de otros monarcas: era regente y no reina por derecho propio, era extranjera pero ocupaba el trono español y era mujer pero desempeñaba la más alta magistratura del país.

Body Percussion and Team Building through the BAPNE Method

BAPNE Method is a method based on cognitive stimulation integrating music and movement through body percussion. The aim of this research is to explore its whole potential as a tool to build teams. Team building is a philosophy for work design, and since over two decades ago, it defends that obtaining a high performance and organizing efficiency is more useful to perceive employees as interdependent members in a team of work than individuals ones. From this viewpoint, this research advocates that BAPNE Method’s body percussion practice will have an impact on this vision of team work directly. For its own characteristics, body percussion stimulates ways of contact in movement, which ease social ties and, especially, promote group cohesion. Through social, body and, affective dimension; BAPNE Method is capable of developing a shared vision and a single aim, to stimulate team work identity and an atmosphere of trust; and finally, to improve individual communication and satisfaction levels in group tasks.