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The use of networked light bulbs is proposed in order to modify the focus of attention, defined based on salience maps, of a video being displayed on a screen. The proposed system was evaluated by using four networked lamps positioned behind a television display. The lamps were controlled by the system according to the visual features of the video. By using a camera, the salience of the room illuminated...
Computational photography has redefined the possibilities of conventional photography. New effects can be obtained by mixing modified hardware with software. In this paper we present the basis of a theoretical framework for a computational camera. By using coded apertures, the framework is able to multiplex images of a scene and simultaneously acquire them. As an application, we show a system to capture...
Coded apertures provide enhanced noise characteristics to lens-less imaging systems. Similar characteristics have been suggested for traditional cameras. Four experiments were conducted to investigate the amount of noise reduction provided by coded apertures when used in photographic cameras. They focus on the effects of coding mask sizes, positioning, mosaicing and rotation. The signal to noise ratio...
Many algorithms and works have helped in the understanding and development of affective analysis of films. In spite of the progress made up to now, it is still not very precise how the low-level features of movies shape the resulting affective state of the viewer. In this work we evaluate different visual features and investigate how they impact the emotional evaluation under two paradigms: the dimensional...
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