Fiducial markers computer vision

1. What are fiducial markers computer vision?
2. What are fiducial markers used for?
3. How do fiducial markers work?
4. Is a QR code a fiducial marker?

What are fiducial markers computer vision?

A fiducial marker or fiducial is an object placed in the field of view of an imaging system that appears in the image produced, for use as a point of reference or a measure. It may be either something placed into or on the imaging subject, or a mark or set of marks in the reticle of an optical instrument.

What are fiducial markers used for?

The use of fiducial markers helps pinpoint the location of a tumor with greater accuracy, enabling a treatment team to deliver the maximum dosage of radiation to the tumor while minimizing the dose delivered to nearby healthy tissue. Fiducial markers may move away from where they were originally implanted.

How do fiducial markers work?

Fiducial markers are tiny metal objects (about the size of a grain of rice). They help your healthcare providers line up the beams of radiation and make sure your radiation therapy is delivered exactly the same way each time. This helps them target the tumor and avoid your nearby healthy tissue.

Is a QR code a fiducial marker?

Fiducial markers such as QR codes, ArUco, and AprilTag have become very popular tools for labeling and camera positioning. They are robust and easy to detect, even in devices with low computing power.