Multi-target calibration and augmentation

A method for providing an augmented reality (AR) application for calibrating a robot in a workspace, said method comprising:

• placing a plurality of markers throughout the workspace so that a plurality of pairs of two adjacent markers can be viewed in a field-of-view of an AR device having a camera;
• determining a distance relationship between the two adjacent markers in all of the pairs of markers;
• determining a distance relationship between all pairs of non-adjacent markers using the distance relationship between the two markers in all of the pairs of markers including multiplying select ones of the distance relationships between the two markers in all of the pairs of markers;
• identifying a distance relationship between one of the plurality of markers and a point on the robot;
• identifying a distance relationship between all of the other plurality of markers and the point using the distance relationships between the adjacent markers and the non-adjacent markers;
• and
• displaying the point relative to a nearest visible marker at any point during operation of the application.

A system for providing an augmented reality (AR) application, said system comprising:

• means for placing a plurality of markers throughout a workspace so that a plurality of pairs of two adjacent markers can be viewed in a field-of-view of an AR device having a camera;
• means for determining a distance relationship between the two adjacent markers in all of the pairs of markers;
• means for determining a distance relationship between all pairs of non-adjacent markers using the distance relationship between the two markers in all of the pairs of markers;
• means for identifying a distance relationship between one of the plurality of markers and an augmentation in the workspace;
• and
• means for identifying a distance relationship between all of the other plurality of markers and the augmentation using the distance relationships between the adjacent markers and the non-adjacent markers.