A Flexible Camera: A Radically different Aproach to Imaging

https://youtu.be/Q_Ve0XPVdTc

A previous idea on how to make a flexible camera included integrating ridged camera lenses with fixed focal lengths to a silicon or other flexible substrate. However, a system like this would cause gaps in between the fields of views between cameras, resulting in captured image to have missing information, becoming distorted, or appear “aliased.”

The Columbia Engineering team combated this issue by designing a camera that uses an adaptive lens array constructed out of elastic materials allowing each individual focal length to vary its aperture with the local curvature in a way that it almost eliminates the aliasing in the captured images.

The team developed their adaptive lens by designing an adjustable aperture that can change the field of view. The team successfully fabricated their prototype out of silicon and proved its ability to produce a high-resolution image even with deforming the device. The research was funded by the Office of Naval Research and conducted in  Nayar’s Computer Vision Laboratory.

“The adaptive lens array we have developed is an important step towards making the concept of flexible sheet cameras viable,” Nayar says. “The next step will be to develop large-format detector arrays to go with the deformable lens array. The amalgamation of the two technologies will lay the foundation for a new class of cameras that expand the range of applications that benefit from imaging.”

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Nayar and his partners developed an incredible technique to change the basis of conventional cameras and revolutionize adaptive cameras to create some stellar photos. The technology remains impressive, however, the process still calls for some improvements to increase the resolution and create a thinner device that can seamlessly form to any object it is placed on.