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position mapping

Zihui_LiuZihui_Liu ✭
in Questions And Answers

If I create a brain and a head in a hologram, and want to map the brain to a precise location in the head through an animation, what technique should I use?

Is there library to help me do this?

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Answers

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    PatrickPatrick mod

    Where else would the brain be? Are you trying to put the brain precisely in a real person's head? Or are you trying to put the brain in a virtual head?

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    Zihui_LiuZihui_Liu ✭

    @Patrick Sorry for confused question: Map the hologram onto a physical head.

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    JasonJason ✭✭
    How could one map to physical data points?
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    Zihui_LiuZihui_Liu ✭

    @Jason I am trying to use ARToolKit. This library handles with the fiducial marker. To be more specific, attach a fiducial marker on the physical object. Compute the position and orientation through camera video stream. From this the computer do some transformations on image and then a virtual marker in hologram is generated. We map the brain by mapping the virtual marker to the physical one.

    Here is a simple testing program using ARToolkit:
    https://artoolkit.org/documentation/doku.php?id=7_Examples:example_simplelite

    The problem is that I could not connect to the webcam in hololens. Does anyone know how to solve it?

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    Zihui_LiuZihui_Liu ✭

    I want to map my hologram, a virtual brain, to a physical head.

    I am trying to use ARToolKit. This library handles with the fiducial marker. To be more specific, attach a fiducial marker on the physical object. Compute the position and orientation of the marker through camera video stream. From this the computer do some transformations on image and then a virtual marker in hologram is generated. We map the brain by mapping the virtual marker to the physical one.

    Here is a simple testing program using ARToolkit:
    https://artoolkit.org/documentation/doku.php?id=7_Examples:example_simplelite

    The problem is that I could not connect to the webcam in hololens. Does anyone know how to solve it?

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    HoloSheepHoloSheep mod

    @Zihui_Liu have you taken a look at the Locatable Camera?

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    Zihui_LiuZihui_Liu ✭

    @HoloSheep Do you mean following the scripts at the Locatable Camera and attaching it to the camera object in the scene?

    Besides, for this line:
    UnityEngine.VR.WSA.WebCam.VideoCapture.SupportedResolutions.OrderByDescending

    I get error that <UnityEngine.Resolution> does not contain a definition for 'OrderByDescending'. Do I need to load some plugin or library?

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    Zihui_LiuZihui_Liu ✭

    @HoloSheep Yes, I add this and fix the problem. But I still fail connecting to the camera.

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    ContextVRContextVR ✭✭✭

    @Zihui_Liu Do you have the WebCam capability enabled in Player Settings?

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    Zihui_LiuZihui_Liu ✭

    @ContextVR Yes, I enable all required capability.

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    JasonJason ✭✭

    @Zihui_Liu Thanks for the information regarding the ARToolKit and link to the mapping example.

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