Many 3D cameras and scanners produce rough images, especially as they get smaller and cheaper. You often need a big laser scanner just to get reasonably accurate results. If MIT researchers have their way, though, even your smartphone could capture 3D images you'd be proud of. They've developed a technique that uses polarized light (like what you see in sunglasses) to increase the resolution of 3D imaging by up to 1,000 times. Their approach combines Microsoft's Kinect (or a similar depth camera), a polarized camera lens and algorithms to create images based on the light intensity from multiple shots. The result is an imager that spots details just hundreds of micrometers across -- you'd be hard-pressed to notice any imperfections.
The concept would need significant tweaking for a smartphone-sized 3D camera, since it revolves around a mechanical filter. You'd likely have to use grids of polarization filters over the sensor, and that would drop the effective resolution. You wouldn't get 23-megapixel cameras for a while, folks. However, it would still be good enough that you could snap a photo of an object from your phone and get a high-quality 3D printout.
Read More: http://www.engadget.com/2015/12/02/polarized-3d-imaging/
The concept would need significant tweaking for a smartphone-sized 3D camera, since it revolves around a mechanical filter. You'd likely have to use grids of polarization filters over the sensor, and that would drop the effective resolution. You wouldn't get 23-megapixel cameras for a while, folks. However, it would still be good enough that you could snap a photo of an object from your phone and get a high-quality 3D printout.
Read More: http://www.engadget.com/2015/12/02/polarized-3d-imaging/
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