Álvaro Cassinelli

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We are developing a modular electronic device to allow users to perceive and respond simultaneously to multiple spatial information sources using haptic stimulus. Each module of this wearable “haptic radar” acts as an artificial hair capable of sensing obstacles, measuring their range and transducing this information as a vibro-tactile cue on the skin(More)
The problem of tracking hands and fingers on natural scenes has received much attention using passive acquisition vision systems and computationally intense image processing. We are currently studying a simple active tracking system using a laser diode, steering mirrors, and a single non-imaging detector, which is capable of acquiring three dimensional(More)
We present the development vision of a range of interactive body-worn lighting systems for performance, play, rehabilitation and disor alteredability support. The systems combine experimental and off-the-shelf technologies to arrive at outcomes that require and inspire extended physical and expressive engagement, and afford a range of different learning(More)
We are developing a modular electronic device whose goal is to allow users to perceive and respond simultaneously to multiple spatial information sources using haptic stimulus. Each module of this wearable “haptic radar” acts as an artificial hair capable of sensing obstacles, measuring their range and transducing this information as a vibrotactile cue on(More)
Several N,N'-bis[6-[(2-methoxybenzyl)amino]hexyl]-1, omega-alkanediamine tetrahydrochlorides were synthesized and evaluated for their blocking activity on muscarinic receptors in guinea pig atria and rat ileum and bladder. The results were compared with those obtained for the classical nonselective muscarinic antagonist atropine. It was discovered that(More)
This paper describes a finger gesture recognition system based on an active tracking mechanism. The simplicity of this tracking system is such that it would be possible to integrate the whole system on a chip, making it an interesting input interface for portable computing devices. In this context, recognition of gestural characters allows information to be(More)
Mobile and ubiquitous systems create opportunities for new kinds of interactivity in public spaces. Examples of human-technology interactions in public spaces include interactive displays on different scales; mobile systems enabling projection in public environments; smart interactive and reactive objects; tangible interfaces; and public media arts.(More)
We propose a variant of the multi-touch display technology that introduces an original way of manipulating three-dimensional data. The underlying metaphor is that of a deformable screen that acts as a boundary surface between the real and the virtual worlds. By doing so, the interface can create the illusion of continuity between the userpsilas real space(More)
This study, conducted on isolated guinea pig ileum, was designed to establish the mechanism of presynaptic alpha 2-adrenoreceptor blockade by the tetramine disulfides, benextramine and pyrextramine. At 1 microM these drugs irreversibly blocked norepinephrine (NE)-induced inhibition of the twitch response to electrical stimulation. This may be the result of(More)
Thanks to the Khronos Projector, space and time can be unlinked in a pre-recorded movie. Causality becomes relative to the spatial path we decide to follow on the screen, which allows for multiple interpretations of the pre-recorded facts. In this sense, the Khronos Projector is an exploratory interface that transforms a movie sequence into a(More)