Quantifying the Influence of Salt Marshes on Wave Run-Up on a Dike During Extreme Wave Conditions: An Experimental Study

Salt Marshes are a coastal ecosystem which have numerous benefits as coastal defense such as wave attenuation and can adapt to sea level rise. Wave flume tests, using a scale model of a cross-section of a salt marsh adjacent to a dike, were conducted in the Hydraulic Laboratory, to quantify the effectiveness of such a salt marsh system as flood...

Evacuation behaviors and emergency communications: An analysis of real-world incident videos

Emergencies such as fires and terrorist attacks pose risks of injuries and fatalities, which can be exacerbated by delayed, ill-informed, or unmanaged responses. Effective emergency communication strategies could be used to better inform people and reduce these risks. This research analyzes videos of real-world emergencies to: (a) identify...

Multimodal information extraction from videos: Automatic creation of highlight clips from political speeches

With the huge amount of data that is collected every day and shared on the internet, many recent studies have focused on methods to make multimedia browsing simple and efficient, investigating techniques for automatic multimedia analysis. This work specifically delves into the case of information extraction from videos, which is still an open...

Effects of offense, defense, and ball possession on mobility performance in wheelchair basketball

The aim of this study was to determine to what extent mobility performance is influenced by offensive or defensive situations and ball possession and to what extent these actions are different for the field positions. From video analysis, the relative duration of the various wheelchair movements during team offense/defense and individual ball...

Supporting the Tennis Coach: Automatically Analyzing and Evaluating Tennis Footage

Video support is becoming an indispensable tool in tennis practice sessions, especially at the professional level. Cameras are used to record a player and the current available software is used optimize the player's tennis technique, i.e. the biomechanics. Unfortunately, the tactical side of tennis is underexposed in terms of available software....

Multimedia Content Analysis, Indexing and Summarization: A Perspective on Real-Life Use Cases

The problem of finding images, video clips and music, given time, place, interest and mood has kept an immense number of scientists and technology developers busy in the past twenty years. However, straight forward attempts to apply text based search to non-textual data still seem to be the only viable solution. In spite of the numerous ideas...

Bubble size reduction in a fluidized bed by electric fields

The reduction of the size of bubbles can improve both selectivity and conversion in gas-solid fluidized beds. Results are reported of the reduction of bubble size by the application of electric fields to uncharged, polarizable particles in fluidized beds. It is shown how average bubble diameters can be drastically reduced, with little change of...

The computer can tell what's exciting: Choosing videos: emotion curve replaces storyline

As many viewers will know from experience, the thrilling description on a video cover offers no guarantee of suspense in the video itself. The exciting bits may add up to only a few minutes of the 90 minutes or so running time, and that is something you would have liked to have known in advance. Dr. Alan Hanjalic at the Information Technology...