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    Close range tracking (torso), angle of body

    How To... ?
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    • MichelM
      Michel Izzy Guru
      last edited by

      @DusX

      It should not be a problem with the Kinect (not sure how much of the body you see from 2 feet away and how good Kinect is from this short distance, maybe turn the Kincet 90º to get more of the body). Then calculate the angle with the x-value of the hip-center to the x-value of the neck-center.

      Best Michel

      Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

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      • DusXD
        DusX Tech Staff
        last edited by

        @michel

        I think I will need to do some kinect tests. Not sure I can get a reliable skeleton that close, even with the Kinect 2.
        I haven't tried it on 90 edge.. I will report back on this.
        Are there any USB webcams that are good for IR work? I can use IR LEDs to light the background.. and workout a silhouette... maybe send out to some openCV script to get orientation.

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        • MichelM
          Michel Izzy Guru
          last edited by

          @DusX

          I don't know any cameras that are good for IR. Sorry.

          Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

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          • DusXD
            DusX Tech Staff
            last edited by

            I am thinking a modded ps3 eye.
            Anyone have experience with this?

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            • gapworksG
              gapworks
              last edited by

              I bought a snap on wide angle lens for my kinect. Increases the angle quite a bit!

              Running MBP2017 / Osx 10.14.5 / 16 GB 2133 MHz LPDDR3 / Intel HD Graphics 630 1536 MB / Latest Isadora Version / www.gapworks.at / located in Vienna Austria

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              • A
                Aolis
                last edited by

                Have you tried using the built in Eyes or Eyess++ actors when using a difference actor?

                I was able to very quickly set up a video in watcher->difference=>eyes  and have it easily track my shifting back and forth between standing straight and leaning to the sides. . . With smoothers and some fussing it may do what you need. 

                954faf-screen-shot-2016-08-19-at-3.44.26-pm.png

                Media Artist & Teacher
                Trashcan Late 2012, Mojave / MacBook Pro 2019 5600M, Catalina

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                • DusXD
                  DusX Tech Staff
                  last edited by

                  @Aolis 
                  Eyes is my go to.

                  I need the lighting/contrast to be fool-safe, since this project will be traveling without me.
                  I am going to get a PS eye, and mod it.. it seems easy and low cost.. 
                  As I test it, I will post my results.
                  @gapworks
                  I haven't seen these. Do you have a link to one you could share?

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                  • markM
                    mark
                    last edited by

                    Dear @DusX,

                    Could you use fiducial markers? For instance, if you had the fiducial pattern on the costume, but done it such a way that the fabric does _not_ reflect IR, and the fiducial marker _does_ reflect IR, then you could make it so that the marker was invisible (at least somewhat?) to the naked eye. The benefit to this approach is that fiducial markers give you not only position, but rotation as well.
                    Here's a software that uses fiducial markers.
                    http://reactivision.sourceforge.net
                    Just a thought.
                    Best Wishes,
                    Mark

                    Media Artist & Creator of Isadora
                    Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                    • DusXD
                      DusX Tech Staff
                      last edited by

                      @mark, this would be a great approach if I had control over the user, but this is meant to be open to the public to interact with.

                      I am happy if I can get some basic swaying of the users body. 
                      That would suit the interactive element nicely... 
                      so I'm going to test Kinect and the PS eye.
                      Wish me luck.

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                      • markM
                        mark
                        last edited by

                        @DusX -- GOOD LUCK! 😉

                        Media Artist & Creator of Isadora
                        Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                        • FredF
                          Fred
                          last edited by

                          If it is just torso angle a gyro and wireless arduino would be easier imho. No tracking just real data.

                          http://www.fredrodrigues.net/
                          https://github.com/fred-dev
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                          • A
                            Aolis
                            last edited by

                            Good luck!!! Would love to know if you figure something out that can be as robust as you need. -A

                            Media Artist & Teacher
                            Trashcan Late 2012, Mojave / MacBook Pro 2019 5600M, Catalina

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                            • m_theaterM
                              m_theater
                              last edited by

                              @DusX

                              after the Werkstatt i tried to mod our ps eye but failed as there are different versions on the market, if you buy one just be aware of this difference.
                              [http://nuigroup.com/forums/viewthread/5189/](http://nuigroup.com/forums/viewthread/5189/)

                              avk4.net

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                              • FredF
                                Fred
                                last edited by

                                You can take the easy way out (for searching modified PS3 eye IR camera)

                                https://www.peauproductions.com/collections/playstation-eye-products

                                http://www.fredrodrigues.net/
                                https://github.com/fred-dev
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                                • DusXD
                                  DusX Tech Staff
                                  last edited by

                                  @Fred

                                  Thanks... I had looked at this site some time back but didn't have the link anymore.
                                  @m_theater 
                                  Helpful piece of information for sure... thanks.

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                                  • gapworksG
                                    gapworks
                                    last edited by

                                    @DusX this is the one i ´m using

                                    http://nyko.com/collections/xbox-360/products/xbox-360-zoom-for-kinect

                                    Running MBP2017 / Osx 10.14.5 / 16 GB 2133 MHz LPDDR3 / Intel HD Graphics 630 1536 MB / Latest Isadora Version / www.gapworks.at / located in Vienna Austria

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                                    • DusXD
                                      DusX Tech Staff
                                      last edited by

                                      @gapworks

                                      Thanks.. that cool.

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