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In recent years, baggage screening at airports has included the use of dual-energy X-ray computed tomography (DECT), an advanced technology for nondestructive evaluation. The main challenge remains to reliably find and identify threat objects in the bag from DECT data. This task is particularly hard due to the wide variety of objects, the high clutter, and the presence of metal, which causes streaks...
We consider a novel problem of endmember detection in hyperspectral imagery where signal of frequency bands are probed sequentially. We propose an adaptive strategy in controlling the sensing order to maximize the normalized solid angle as a robustness measure of the problem geometry. This is based on efficiently identifying pure pixels that are unique to each endmember and exploiting information...
We consider the problem of reconstructing a deterministic data field from binary quantized noisy observations of sensors randomly deployed over the field domain. Our focus is on the extremes of lack of control in the sensor deployment, arbitrariness and lack of knowledge of the noise distribution, and low-precision and unreliability in the sensors. These adverse conditions are motivated by possible...
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