Living Pictures by Lytro Light Field Camera

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					       Living pictures by Lytro light field camera
The very first light fields were captured at Stanford University years ago.
The most advanced light field research required a roomful of cameras
tethered to a supercomputer. Today, Lytro completes the job of taking light
fields out of the research lab and making them available for everyone, in the
form of the world’s first Lytro Light Field Camera.

Light field is the amount of light traveling in every direction through every
point in space. Recording light fields requires an entirely new kind of sensor
called a light field sensor. This sensor captures the color, intensity and
vector direction of the rays of light. This directional information is completely
lost with traditional camera sensors, which simply add up all the light rays
and record them as a single amount of light.
With the Lytro light field camera, you can continuously re-adjust an image to
focus on the foreground, middle or background merely by clicking around
the image. This also means it’s nearly possible to take out-of-focus, Just aim
and shoot, focus later. Lytro calls these “living pictures”.

Core of the Lytro camera consists of the light-field sensor (hardware) and
light-field engine (software). The sensor which looks flat square and like a
 fly’s eye that helps to capture all the light in every direction. A conventional
photo focuses on one plane of that cube. A light field camera captures the
whole thing.

Instead of megapixels, Lytro measures the sensor’s power         in terms of how
many millions of rays of light it captures. Like 11 million      light rays or 11
megarays. Camera allows both the picture taker and the            viewer to focus
pictures after they're snapped, shift their perspective of the   scene, and even
switch seamlessly between 2D and 3D views.

Lytro, Inc. is a light field camera startup company founded in 2006 by Ren
Ng, a light-field photography researcher at Stanford University. The
company's first camera went on sale October 19, 2011 in 8 GB (399 USD)
and 16 GB (499 USD) versions, and shipped in February 2012.

The camera's makers are a Silicon Valley start-up that secured $50 million in
funding. The idea isn’t new but early ‘plenoptic’ or ‘light field’ cameras were
room-sized lens arrays attached to high-powered computers. The Lytro is
pocket-sized and could turn the world of photography upside down.

Light field cameras offer astonishing capabilities. With these amazing
capabilities, pictures become immersive, interactive visual stories that were
never before possible – they become living pictures.

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