A 3D Picture Created Without A Camera

Gizmodo.com writes: Imagine taking a picture, without a camera. If that sound ridiculous, it’s because it is—but it’s also exactly what a team of researchers from the University of Glasgow, UK, have been doing.

This picture wasn’t created using two multi-pixel sensors like most 3D images—but with a technique called ghost imaging, which for the first time has been extended to work in three dimensions. Ghost imaging records images of objects by recording light that doesn’t actually hit them.

It sounds weird, but a single-pixel sensor can rely on paired light sources—say, a split laser beam—to gather intensity information that is later computationally reconstructed into an image.

Read more at http://gizmodo.com/this-3d-picture-was-created-without-a-camera-508156691

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