CPC G06T 7/80 (2017.01) [G01B 11/2504 (2013.01); G06T 7/60 (2013.01); H04N 13/246 (2018.05); H04N 13/282 (2018.05); G06T 2207/30204 (2013.01); G06V 20/56 (2022.01)] | 17 Claims |
1. A target used for calibration, comprising:
a panel having a first plurality of fiducial markers arranged on the panel in a first pattern and a second plurality of fiducial markers arranged on the panel in a second pattern,
wherein the first pattern is a scaled version of the second pattern, such that a calibration image captured of the target simulates multiple images of a single pattern captured at multiple calibration perspectives, and
wherein fiducial markers of the first plurality of fiducial markers have a different shape than fiducial markers of the second plurality of fiducial markers,
wherein at least one fiducial marker of at least a portion of the first and second pluralities of fiducial markers comprises a plurality of distinct regions, and
wherein the plurality of distinct regions comprises at least two of: a first region having a crosshair that indicates a center of the fiducial marker, a second region having an angular barcode that uniquely identifies the fiducial marker within a calibration image taken of the fiducial marker, a third region that identifies a boundary of the fiducial marker, or a fourth region having a human-readable label that uniquely identifies the fiducial marker within the calibration image taken of the fiducial marker.
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