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SciKit-Surgery / scikit-surgerybard

BARD: The Basic Augmented Reality Demo, used at MedICSS summer school.
https://scikit-surgerybard.readthedocs.io/
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The use of chessboard pattern on pillars in BARD demo #82

Closed rohang1411 closed 2 years ago

rohang1411 commented 2 years ago

The image below shows the setup of BARD. Found this image in doc folder.

image

There are the few things which I can observe -

  1. Laid out Chessboard pattern - I think it's for camera calibration.
  2. Chessboard pattern on pillars - Not sure what's that for?
  3. Aruco tags (Both the tags) - For tracking and overlaying the model

Can you please clarify the role of chessboard pattern on pillars.

thompson318 commented 2 years ago

Hello, I'm afraid the various chessboards have no role in the BARD demo. This pelvis phantom dates back to my PhD Thesis, which I made long before BARD. I thought at the time it would be useful to have multiple marker patterns for measuring accuracy, but in the end I don't think I used them. The only things used in the BARD demo are the two ArUco tag patterns, one stuck to the phantom and the other stuck to the pen/pointer. Then the pointer is used to perform point based registration using the fiducial markers (the browny/yellow things on top of some of the posts).