Create 3D images with a single lens
WASHINGTON: End of 3D glasses?
Researchers have developed a novel new way to create 3D images through a
single lens, without moving the camera. The technology developed by the
Harvard School of Engineering and Applied Sciences suggests an
alternative way to create 3D movies for the big screen. It could also
allow amateur photographers and microscopists to create the impression
of a stereo image without using expensive hardware, researchers said.
The technology relies only on computation and mathematics - no unusual hardware or fancy lenses. The effect is the equivalent of seeing a stereo image with one eye closed, researchers said.
Offering a workaround, principal investigator Kenneth B Crozier and graduate student Antony Orth essentially compute how the image would look if it were taken from a different angle. To do this, they rely on the clues encoded within the rays of light entering the camera. The key, they found, is to infer the angle of the light at each pixel, rather than directly measuring it.
The team's solution is to take two images from the same camera position but focused at different depths. The slight differences between these two images provide enough information for a computer to mathematically create a brand-new image as if the camera had been moved to one side.
The technology relies only on computation and mathematics - no unusual hardware or fancy lenses. The effect is the equivalent of seeing a stereo image with one eye closed, researchers said.
Offering a workaround, principal investigator Kenneth B Crozier and graduate student Antony Orth essentially compute how the image would look if it were taken from a different angle. To do this, they rely on the clues encoded within the rays of light entering the camera. The key, they found, is to infer the angle of the light at each pixel, rather than directly measuring it.
The team's solution is to take two images from the same camera position but focused at different depths. The slight differences between these two images provide enough information for a computer to mathematically create a brand-new image as if the camera had been moved to one side.
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