Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
Forum Thread Details
  • Replies 11 replies
  • Subscribers 684 subscribers
  • Views 1379 views
  • Users 0 members are here
Related

Paired cameras for stereoscopic enhancement

morgaine

Has anyone reported yet their use of two Pi cameras slaved together as a binocular pair and the output being  processed in one of the many ways available for stereoscopy or 3D  imaging?

 

In addition to the above, I was pondering ways to combine such a pair of still images or video streams with those forthcoming CastAR 3D glasses that we were talking about a little while ago, hopefully produced one day by Jeri Ellsworth's Technical Illusions outfit --- HackADay has a brief description of the technology (see Youtube and The Amp Hour for a lot more).

 

Since  the retro-reflective screen happily sends back anything projected at it from each eye's vantage point, it should require no processing at all to view the output from dual cameras in full glorious 3D in CastAR, other than maybe format conversion.  Given the low price of the Pi camera, this is sure to happen the instant the glasses become available.

 

(I  was also wondering how the eye/brain combination would perceive the effect of dramatically increasing the separation between the two cameras when used with CastAR --- that's sure to be interesting, as it will allow parallax to be increased artificially beyond human range.)

 

And going even further, processing the dual images or streams for contrast enhancement or to pick out other desireable visual properties is sure to be of interest in many areas, microscopy being just one.

 

Morgaine.

Parents

  • Further on the subject of low-cost video-aided microscopy, Chemical & Engineering News published an interesting article yesterday on "Smart Phones Snap Pictures Of Individual Virus Particles", which describes using a  laser diode and angled lenses in conjunction with a phone camera to provide cheap and portable fluorescence microscopy of particles and viruses down to 100nm in size.

     

    C&EN's article is based on the paper published in ACS Nano 10.1021/nn4037706, 9 Sep 2013, by Qingshan Wei et al, UCLA.  The full paper is available at pdf/10.1021/nn4037706.

     

    The above offers a very interesting area of experimentation with the Pi camera, needing only very inexpensive additional components that are available everywhere --- a laser diode and some lenses.  (Some experimentation with lens coatings could replace the UCLA team's long-pass thin-film interference filter.)  What's more, entirely electronic observation without an eyepiece provides useful first-order protection against eye damage, which is an ever-present danger even with very low power laser devices.  Needless to say, care is still needed, and preferably optical shielding as well.

     

    This kind of project goes far beyond IT engineering, and could encourage interest in materials and life sciences and many others as well.

     

     

    Addendum:  An offshoot from the UCLA research team, Holomic LLC, provides some very informative videos and product/technology descriptions on its website.

Reply

  • Further on the subject of low-cost video-aided microscopy, Chemical & Engineering News published an interesting article yesterday on "Smart Phones Snap Pictures Of Individual Virus Particles", which describes using a  laser diode and angled lenses in conjunction with a phone camera to provide cheap and portable fluorescence microscopy of particles and viruses down to 100nm in size.

     

    C&EN's article is based on the paper published in ACS Nano 10.1021/nn4037706, 9 Sep 2013, by Qingshan Wei et al, UCLA.  The full paper is available at pdf/10.1021/nn4037706.

     

    The above offers a very interesting area of experimentation with the Pi camera, needing only very inexpensive additional components that are available everywhere --- a laser diode and some lenses.  (Some experimentation with lens coatings could replace the UCLA team's long-pass thin-film interference filter.)  What's more, entirely electronic observation without an eyepiece provides useful first-order protection against eye damage, which is an ever-present danger even with very low power laser devices.  Needless to say, care is still needed, and preferably optical shielding as well.

     

    This kind of project goes far beyond IT engineering, and could encourage interest in materials and life sciences and many others as well.

     

     

    Addendum:  An offshoot from the UCLA research team, Holomic LLC, provides some very informative videos and product/technology descriptions on its website.

Children
No Data