Stan Beer
Wednesday, 19 March 2008 17:37
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According to the researchers, taking a photo of a face
will precisely record the distances to the subject's eyes, nose, ears,
chin, etc, leading to possible applications for facial recognition for
security purposes, biological imaging, 3D printing, creation of 3D
objects or people to inhabit virtual worlds, or 3D modeling of
buildings.
An even more esoteric use of the new super 3D
imaging technology could involve applications in artificial
intelligence such as robotics.
Knowing the exact distance to an object might give robots better
spatial vision than humans and allow them to perform delicate tasks now
beyond their abilities. "People are coming up with many things they
might do with this," Fife said. The three researchers published a paper
on their work in the February edition of the IEEE ISSCC Digest of
Technical Papers.
According to the researchers, their super 3D camera would look and feel
like an ordinary camera, or even a smaller cell phone camera. The cell
phone aspect is important, Fife said, given that "the majority of the
cameras in the world are now on phones."
The Stanford report contains more detailed applications for a camera
with the ability to digitise images in a detailed depth map which can
be stored on a computer for later processing and manipulation.
"You can choose to do things with that image that you weren't able to
do with the regular 2-D image," Fife said. "You can say, 'I want to see
only the objects at this distance,' and suddenly they'll appear for
you. And you can wipe away everything else."
The researchers are now working out the manufacturing details of fabricating the micro-optics onto a camera chip.
They claim the finished product may cost less than existing digital
cameras, the researchers say, because the quality of a camera's main
lens will no longer be of paramount importance. "We believe that you
can reduce the complexity of the main lens by shifting the complexity
to the semiconductor," Fife said.