'Ghostly' 3D images taken without a camera

Issued: Thu, 20 Jun 2013 11:20:00 BST

A simplified 3D imaging system that does not require a conventional camera has been developed by researchers in the UK. The computational imaging technique uses information from single-pixel detectors to create an image, can be used over a range of wavelengths and is cheaper than other 3D methods. The researchers claim that, in addition to taking images, their system could be used as a detector in oil and gas exploration as well as in medical and biological imaging systems.

 Most imaging systems – from cameras to the retinas in our eyes – capture images in 2D and then process the information to create a 3D image. While plenty of 3D imaging techniques exist – including stereoscopic, holographic and volumetric imaging – they are expensive and require bulky and specialist equipment, such as lenses and lasers. And despite all this advanced technology, the techniques only work for light at specific wavelengths. 

Read the full story at Physics World