Qia Wang and his colleagues have developed a smartphone app that can calculate the location of distant objects and track their speed and direction
The three major components of the PositionIt system are single-image-based localization, two-image-based localization, and video based remote moving-target tracking
Only one image is needed when the target's size is known
When the target's size is unknown, the app uses two images to triangulate the location of the target
PositionIt can track moving objects using video captured on the smarphone
The PositionIt smartphone app can calculate the location of distant objects and track their speed and direction (Photo: Shutterstock)
Researchers at the University of Missouri have developed a prototype app that combines a smartphone’s GPS, compass and imaging capabilities to calculate the exact location of distant objects and track their speed and direction. The researchers say the PositionIt app could allow a single off-the-shelf device to replace various pieces of equipment carried by soldiers on the battlefield, or be used closer to home to judge the distance to the green when playing golf.
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