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Tracking Mocap markers in 3D from multiple cameras

asked 2017-08-24 06:34:56 -0500

updated 2017-08-24 06:37:39 -0500

I am wondering if there is a way to track mocap(Motion Capture) markers in 3D from multiple cameras using OpenCV.

I am using 8 cameras for tracking and the data I have at hand is video recordings from 8 cameras and camera calibration parameters.

It would be of great help if someone can point somewhere in OpenCV library to start.

Much appreciated

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answered 2017-08-30 09:47:31 -0500

HSV gravatar image

I am also interested in motion capture using opencv. but have not found any prebuild modules. I think we need to start with calibrating many cameras together, like our NaturalPoints (commercial) system does.

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It simply does not exist as a prebuilt module :)

StevenPuttemans gravatar imageStevenPuttemans ( 2017-08-31 03:23:38 -0500 )edit

answered 2017-08-24 07:23:59 -0500

Is it possible?

YES it is. Where to start? Look at the specific projects already trying something like this ...

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thanks a lot for the reply Steven. I looked at these videos before posting this question, and I found nothing important/relevant to my issue. Let me explain my case a bit better.

  1. I am looking for an openCV module that does calibration from multiple cameras
  2. Track mocap markers placed on the mouse in 3D from multiple cameras.

have a look at a screenshot in the link below

srikanthb gravatar imagesrikanthb ( 2017-08-29 07:33:15 -0500 )edit

Wait wait, the only difference is that you need to localize the marker and your marker is different, but for the rest the movies give you the exact solution...

StevenPuttemans gravatar imageStevenPuttemans ( 2017-08-31 03:27:26 -0500 )edit

I am new to OpenCV and have no idea what localizing a marker is can you point me somewhere or explain me in simple words

srikanthb gravatar imagesrikanthb ( 2017-09-04 04:21:55 -0500 )edit

Localising is exactly what the word says, tracking is unrelated to the detection and finding the location of the marker is...

StevenPuttemans gravatar imageStevenPuttemans ( 2017-09-04 04:26:22 -0500 )edit

still confusing to me. can you point me to some technical documentation in OpenCV that does this

srikanthb gravatar imagesrikanthb ( 2017-09-04 04:28:33 -0500 )edit

No because it is NOT a specific task for OpenCV. It seems to me you need to start with learning general computer vision concepts...

StevenPuttemans gravatar imageStevenPuttemans ( 2017-09-04 04:56:12 -0500 )edit

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Asked: 2017-08-24 06:34:56 -0500

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Last updated: Aug 30 '17