Sporty software reveals where blurred balls are heading


By Stephen Battersby FAST-moving balls can appear as blurry streaks in photographs and video stills. That is a problem for commentators examining disputed line calls and coaches studying how well golfers and table-tennis players control balls. Now a group of scientists in Italy have worked out how to determine a ball’s path and spin from a single blurry image. Motion-blurred images contain far more information about a ball’s trajectory than frozen ones, say Alessandro Giusti and his colleagues from the Polytechnic of Milan,
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