Plus: US feds charge alleged masterminds behind infamous forum, Scattered Spider targets airlines, and hackers open a valve ...

The micro-Doppler foreground and noise background centers using image corner detection are first estimated. Using the two centers as starting points, the micro-Doppler signature extraction is ...

Face-mask recognition has arrived—for better or worse. New algorithms can police whether people are complying with public health guidance. The practice raises familiar questions about data privacy.