In our approach, we adopt the hip center joint as the rough centroid of a person. There are three reasons for using the hip center joint as the centroid, rather than calculating the human shape pixels and finding out the centric position. First, the exact centroid of the human shape is ...
The balloon flew up to ~36 km into the stratosphere, about 3.6 times the nominal 10 km cruising altitude of commercial aircraft. Despite the ambient low pressure and subzero temperatures, the smartphone acoustic and acceleration sensors picked up the explosion signal [23], and all sensors ...