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New Camera Inspired By Insect Eyes

Posted by samzenpus on from the looking-at-the-world-through-fly's-eyes dept.

sciencehabit writes "An insect's compound eye is an engineering marvel: high resolution, wide field of view, and incredible sensitivity to motion, all in a compact package. Now, a new digital camera provides the best-ever imitation of a bug's vision, using new optical materials and techniques. This technology could someday give patrolling surveillance drones the same exquisite vision as a dragonfly on the hunt."

10 of 35 comments (clear)

  1. pinhole camera. by Anonymous Coward · · Score: 4, Interesting

    If you make each sensor small enough with the appropriate overlay mask - you get a pinhole camera with an infinite depth of view.

    The advantage an array of such cameras is the ability to integrate thousands of small images to create a 3D result.

  2. Bent electronics - a first? by G3ckoG33k · · Score: 3, Interesting

    From another article on the same topic

    http://www.colorado.edu/news/releases/2013/05/01/insect-eye-inspired-camera-captures-wide-field-view-no-distortion-according

    "“The most important and most revolutionizing part of this camera is to bend electronics onto a curved surface,” said Jianliang Xiao, assistant professor of mechanical engineering at CU-Boulder and co-lead author of the study."

    So, electronics have not been bent like this before, whether for optronics or otherwise? Maybe it is too obvious, in hindsight.

    1. Re:Bent electronics - a first? by QuasiSteve · · Score: 2

      Bending electronics is very simple, for broad definitins of bending and electronics.

      See that flex cable inside your laptop? It bends, and technically it's electronics.

      Okay, there's no components on it. So let's put some slightly more rigid bids on there, and populate those with components. It's still 'bendable' even if the parts where the components are do not bend.

      The components themselves, of course, remain highly inflexible, but the smaller you can make them, the less of an issue this is for the overall flexibility of the system.

      In the case of the 'camera' in the article, they're really, really, really tiny. But they also don't really have to bend - they're still on a rigid surface, just not a flat one (though at the scale in question, that's akin to arguing the ground you're walking on isn't flat because the entire Earth isn't.)

      What they've created here is kind of a lytro/fisheye hybrid. Neat, but for general photography it would be much more interesting, short-term, if the sensor in the camera body could be curved, so that the lens and software don't have to try and correct for the flat surface quite so much, and make it affordable. Think 'curved film plane', but on both axes. There's been a flurry of patents on curved sensor designs in the past few years, so give it another decade or so?

    2. Re:Bent electronics - a first? by bkr1_2k · · Score: 2

      Flex circuits have been around for a while. That's not particularly revolutionary. We've been using them for about 5 years. They're typically fairly simple circuits, but still this isn't the "cutting edge" part of this research. Getting the components small enough to still be flexible on the 1 cm circuit may be the part that he's referring to, though, which is less trivial.

      --
      "Growing old is inevitable; growing up is optional."
  3. Since when are compound eyes high resolution? by AC-x · · Score: 2

    Since when have compound eyes been known for being high resolution? A dragon fly and its 30,00 lenses only corresponds to a total resolution of around 200 x 150.

    Compound eyes have many advantages for miniaturisation, field of view and sensitivity to movement, but there is no way you could claim they were high resolution.

    1. Re:Since when are compound eyes high resolution? by Immerman · · Score: 3, Informative

      What you're describing is a typical apposition eye, where each lens focuses light onto a single photoreceptor. That's actually the simplest form of compound eye, found in arthropods, annelids, and some bivalves, and it may still deliver higher resolution than the number of facets if operated as a phased array. A slightly more complicated version of the same design, the schizochroal compound eye, actually uses multiple photoreceptors per lens with the resulting hundreds or thousands of low-resolution images being (presumably) composited by the brain. (and incidentally - neuron-for-neuron insects have the most complicated brains on the planet, with each neuron making tens to thousands of times as many connections as those in a human brain)

      Skilled fliers and prey-catching insects such as dragonflies typically have among the most sophisticated compound eye designs which deliver quite high resolution - if you've ever been used as a hunting perch by dragon/damselflies you can witness this - they'll be comfortably perched and then dart out to grab some tiny flier that was barely visible to your eye, even if your head was considerably closer to it than the dragonfly's perch was.

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    2. Re:Since when are compound eyes high resolution? by Anonymous Coward · · Score: 2, Interesting

      Video of what Immerman is talking about. http://www.youtube.com/watch?v=dOyc98tV5kA

  4. lightfield cameras may work in similar way by peter303 · · Score: 2

    They began as an wallisze array of video cameras a decade ago. But people learned you can get similar results with an array of special lenses on to a single large camera with a lot of computer postprocessing. The array of lenses looks like an insect eye.

    1. Re:lightfield cameras may work in similar way by ka9dgx · · Score: 3, Interesting

      Yes, this is just like a plenoptic (light field) camera. If you want to experiment yourself, all you need is non-moving subject material, a digital camera, and time. Take photos from slightly shifted viewing positions of a subject. Then use Hugin or Photoshop to align them on a chosen subject (or focal plane). Average all the frames together, and you'll have a synthetic focus image of your subject.

      With some care and effort, you can even supersample the pool of images and get super-resolution output, where the result is more pixels than any source image (but far less than the sum of all the images).

      I've been doing experimentation along these lines for a few years, and here are the resulting photos of scenes from the Chicago area. I was inspired by the work of Marc Levoy, and his Stanford Multi-Camera array.

    2. Re:lightfield cameras may work in similar way by peter303 · · Score: 2

      I've been observing developments at SIGGRAPH for over a decade. Fanstastic stuff! It used to cost over $50K to build a wall (16) of old-style video cameras with computers to process the images.

      All this from asking the "what if" question: "what could you see if you had more than two eyes?" i.e. a wall or hypercube of arbitrary close eyes. Some very interesting answers in the SIGGRAPH papers. Some answers not at all expected.