Spherical panoramas look great in VR; 3-D spheres look spectacular. You can create stereoscopic spheres with standard panography tools, but it takes a lot of photos, a lot of skilled work, and considerable luck. To make 3-D spherical panography really practical, new tools are needed.

PT3D is a "helper tool" for stitching stereo panoramas that inserts 3D-aware image alignment and correction into the familiar PTGui stitching flow. It reads a project aligned by PTGui, re-analyzes it using techniques borrowed from photogrammetry and 3D modelling, and outputs corrected images and a new project for stitching them. The resulting panorama is aligned and warped more accurately than PTGui would have done by itself, and needs less hand work to make it look perfect - using the regular PTGui and Photoshop masking and blending tools.

PT3D is optimized for 6 to 12 shots around with a stereo pair of cameras, but also works with photo sets taken with the one-camera "cha-cha" method, one-shot spherical arrays, even stereo triples. Thomas will show examples, and of course expound a bit on the theory.

SPEAKER: Thomas Sharpless

Thomas Sharpless

Biochemist/Engineer/Panographer in Philadelphia, PA. Like to write software, hack with cameras, walk dogs. Contributor to Hugin, developer of Panini and PT3D s/w. IVRPA member since 2011; past director. Ambition: to create an automatic 6-dof 3D stitching system.

12 thoughts on “PT3D: Stitching Stereo Panoramas – Québec 2016

  1. Hello,

    I wanted to know if there’s a new version of this program?

    I downloaded the link you provided us and it’s not working.


  2. Well ,reading all information the best option for me is to build a new setup with low profile cameras.
    I have purchased a pair sony a5000, and I have chosen the Samyang 8mm f/2.8 Fisheye II Lens for Sony E Mount.

    My principal interest is to shoot interiors

    All the new accessories and adaptors I need are on the way.

    I am impatient to test, and learn with the help of your software, but I think it will not be posible until 10 – 15 days.

    Would you provide US a link when final version is available to purchase ?

    • Thanks for sharing links, I can’t test it by now, but your software open my mind to more possibilities and I am very happy that you will have soon a comercial version of your PT3D software.

      I am absolutely new on 3D panoramas, even I am thinking to update my equipment for 360panos ( S5pro + Nikon 10.5) or get a small profile one ( Sony, Panasonic ).

      I have a technical question, may be I am wrong , but standard 360 stereo panos force inter pupil distance to 70 mm at maximum for interiors 360 stereo panos, to get aceptable results all the hardware sets I have seen on pictures are low profile cameras with low inter pupil distance.

      Do you know if PT3D gives nice results in interiors with 120 mm inter pupil distance ?

      Any information is much apreciated.

      • I have read more carefully PT3D Manual, sorry I should read it before previous question.

        “ The cameras should be mounted close together, ideally
        with the lens centers 65mm apart; but you can get good
        results with spacings up to 90mm.”

        So inter pupillary distance must be from 65 mm to 90 mm ??

      • PT3D will work with any IPD, however for best results your IPD should be as small as possible. 65-70 mm is recommended where the subject of interest is 3-10 meters distant. For closer subjects the IPD should be reduced, for more distant ones it can be increased.

  3. Hello
    I have seen on IVRPA Québec City 2016 Conference Video Archive your conference about using PT3D.

    Looks like an essential tool to save time making 3D stereo panos.
    I will like to test and use it

    Where can I get it ?

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