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3-D Images, With Only One Photon Per Pixel

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Conventional lidar scanner

An example of a conventional lidar scanner that gauges depth by emitting laser light and measuring the time it takes for photons to rebound. MIT researchers developed a lidar-like system that can gauge depth by measuring only a single reflected photon.

Credit: Wikipedia

Lidar rangefinders, which are common tools in surveying and in autonomous-vehicle control, among other applications, gauge depth by emitting short bursts of laser light and measuring the time it takes for reflected photons to arrive back and be detected.

From MIT News Office
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