Focus after taking a picture

Discussion in 'General Off-Topic Chat' started by DigitalDeviant, Jun 28, 2011.

Jun 28, 2011
  1. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    A new company called Lytro has created a camera that can focus a picture after the fact, harnessing data from the light field.

    The video is quite interesting

     


  2. Thesolcity

    Member Thesolcity Wherever the light shines, it casts a shadow.

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    Holy Bajeezus! [​IMG]
     
  3. cwstjdenobs

    Member cwstjdenobs Sodomy non sapiens

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    Why not just have the whole image in focus all the time?
     
  4. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    its useful when you miss a shot and its out of focus, its able to take info from the light field and refocus is really well.
     
  5. JoostinOnline

    Member JoostinOnline Certified Crash Test Dummy

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    I'm satisfied with a clear shot of a sexy girl, and a bunch of ugly guys blurred out.
     
  6. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    lol you can do that too, this is pretty revolutionary, the first consumer light field camera.
     
  7. Raika

    Member Raika uguu

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    This is pretty damn cool. This would help a lot if I were to become a journalist in future. :3
     
  8. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    yeah this is gonna sell A LOT and be the standard in the future.

    It also takes 3D pictures and also a type of 3D that doesn't need glasses, not parallax
    but insted using the advanced software gives a sense of depth, its cool!
     
  9. cwstjdenobs

    Member cwstjdenobs Sodomy non sapiens

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    What I meant is if they have this working right nothing should go out of focus. I think someone is taking liberties with the advertising....
     
  10. Tux'

    Member Tux' GBAtemp Advanced Fan

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    Well I wonder how much this is going to cost, and I want one badly now xD
     
  11. JoostinOnline

    Member JoostinOnline Certified Crash Test Dummy

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    Go take a picture of something close, then see if the background is clear.
     
  12. cwstjdenobs

    Member cwstjdenobs Sodomy non sapiens

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    And my point was there's no need for that to happen if this is working as well as they say. Nothing should be out of focus using the new tech they are advertising.
     
  13. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    The out of focus picture is an example of what the tech can do for those moments when you accidently take a picture out of focus. Its truly the first of its kind in the consumer market.
     
  14. Zarcon

    Former Staff Zarcon .:~Enigmatic Wanderer~:.

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    But with this tech you'd never accidentally take a picture out of focus.
    Or you shouldn't anyway.

    If the camera can refocus things after the picture is taken and it's shown it can put all things in focus at once you should never accidentally take a picture out of focus.
    You should never need to use the feature of focusing after the picture is taken.

    That's his point.
     
  15. JoostinOnline

    Member JoostinOnline Certified Crash Test Dummy

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    Oh, I get it now. Maybe the camera can't auto-detect what is out of focus. In the video they suggested you had to choose what needed to be focused.
     
  16. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    That still doesn't leave out the possibilty that due to human error one will take a picture out of focus. Putting everything in focus is an option. You can also choose to put select things in or out of focus. No other onsumer camera can do this. It is really useful.
     
  17. DigitalDeviant
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    Member DigitalDeviant GBAtemp Addict

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    fi
    Perhaps they need to make a clearer video no pun intended. Using the light field it can anaylise al the light that is in front of it and gather info not possible with a traditional camera. This coupled with the lytro engine allows for refocusing regardless of human error while taking a picture or as a means of creative expression.
     
  18. Veho

    Global Moderator Veho The man who cried "Ni".

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    Because depth of field is a neat and cool effect, and a picture where everything is in focus would look flat [​IMG]

    Plenoptic cameras can give you uniform sharpness across the entire picture (within certain boundaries; you can't get sharpness across an infinite depth range), but that's not the point. They record the light field, and you can easily emulate different focal lengths, different lenses (wide to narrow, orthographic to fish-eye), or even move the viewer forward or backward, left and right, and extract (slightly) 3D images, from the data contained in one image. But adjustable depth of field is the most striking of those features (and the one with the greatest range allowed by the technology), most effective, and no wonder Lytro chose to focus (heh) on that most of all.

    Not sure what other features they'll decide to implement. Of course they'll enable having the entire picture in focus, but playing with the focus and focusing on individual layers is pretty interesting and will probably be the major draw of the camera.

    Here (see bottom of page for PDF file and video link) is an explanation of the principle, some examples, and a video showing the capabilities of the tech. It's pretty interesting.

    One major drawback is that the end photos will probably be in relatively low resolution. Because of the way the technology works (an array of microlenses over the optical sensor, each covering a grid of pixels; the end photo is composed by extracting one pixel from each lens), the end photo has a significantly smaller resolution than the optical chip itself; let's say each lens covers an 8x8 grid, that means a 10 Megapixel optical chip would only give a 456x342 image.


    EDIT:

    [youtube]http://www.youtube.com/watch?v=9H7yx31yslM[/youtube]
     
  19. FAST6191

    Reporter FAST6191 Techromancer

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    I shall have to have a look at their patents and the like. From what they describe though it looks some of the people playing astronomy (gravitational lensing) might be having a word or three.
     
  20. cwstjdenobs

    Member cwstjdenobs Sodomy non sapiens

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    I wouldn't bother, prior art doesn't matter to the USPTO.

    Anyhows, has anyone else seen the "take pictures around corners" stuff? Much cooler use of this than this, even if it's not very good yet.
     

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