An Integrated Fusion Engine for Early Threat Detection Demonstrated in Public-Space Trials.

Counter terrorism is a huge challenge for public spaces. Therefore, it is essential to support early detection of threats, such as weapons or explosives. An integrated fusion engine was developed for the management of a plurality of sensors to detect threats without disrupting the flow of commuters.

Assessing the poplar photochemical response to high zinc concentrations by image processing and statistical approach.

Exposure of plants to high-heavy metals concentration inhibits multiple metabolic processes in plants and leads to an oxidative stress commonly referred as heavy metal ion toxicity. Chlorophyll a fluorescence has enhanced understanding of heavy metal ion action on the photosynthetic system. A rapid and non-invasive technique involving imaging of chlorophyll fluorescence is a useful tool for early detection of plant responses to heavy metal ion toxicity.

Underwater three-dimensional imaging with an amplitude-modulated laser radar at a 405 nm wavelength.

We report the results of underwater imaging with an amplitude-modulated single-mode laser beam and miniaturized piezoactuator-based scanning system. The basic elements of the device are a diode laser source at 405 nm with digital amplitude modulation and a microscanning system realized with a small-aperture aspheric lens mounted on a pair of piezoelectric translators driven by sawtooth waveforms. The system has been designed to be a low-weight and rugged imaging device suitable to operate at medium range (approximately 10 m) in clear seawater as also demonstrated by computer simulation of layout performance.