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Automatic Projector Calibration Using Self-Identifying Patterns

Automatic Projector Calibration Using Self-Identifying Patterns. Mark Fiala Computational Video Group Institute of Information Technology National Research Council mark.fiala@nrc-cnrc.gc.ca. Problem: Geometrically and Photometrically calibrate multiple projector array.

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Automatic Projector Calibration Using Self-Identifying Patterns

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  1. Automatic Projector CalibrationUsing Self-Identifying Patterns Mark Fiala Computational Video Group Institute of Information Technology National Research Council mark.fiala@nrc-cnrc.gc.ca

  2. Problem: Geometrically and Photometrically calibrate multiple projector array Application: large arrays of projector or monitor display elements

  3. Solution: Use ARTag self-identifying markers to find correspondence points ARTag markers Locate white and black points for photometric calibration

  4. ARTag patterns displayed at multiple resolutions from each display element (projector/monitor) Locate corner points for geometric calibration

  5. ARTag Fiducial Marker System • bi-tonal(only black and white) • 4 corners:for 6-DOF camera/pattern pose determination • Digital Methods: Error Correction, CRC-16 Checksum

  6. 2002 possible markers ARTag Creating Markers: Encoding codes Detecting Markers: Identification and decoding

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