VISION-GUIDED ALIGNMENT SYSTEM

摘要

A system is used to perform an operation on an article, the article including a plurality of fiducial marks and a set of features. A digital imaging system captures a digital image of the article, which is analyzed to determine spatial relationships between positions of the features and positions of the fiducial marks. The article is positioned in proximity to an instrument and a fiducial sensing system including a plurality of fiducial sensors is used to determine positions of the fiducial marks. Predicted positions of the features are determined responsive to the determined spatial relationships and the determined fiducial mark positions. The position of the instrument or the article is adjusted responsive to the predicted positions of the features, and the instrument is used to perform an operation on the article.

主权项

1. A system for performing an operation on an article, the article including a plurality of fiducial marks and a set of features, comprising:
a digital imaging system configured to capture a digital image of at least a portion of the article that includes the set of features and the fiducial marks: a fiducial sensing system configured to sense positions of the fiducial marks; an instrument for performing the operation on the article; and a controller configured to:
control the digital imaging system to capture a digital image of the article;analyze the captured digital image to determine spatial relationships between positions of the features and positions of the fiducial marks in the captured digital image;control the fiducial sensing system to sense positions of the fiducial marks;determine predicted positions of the features responsive to the sensed positions of the fiducial marks and the determined spatial relationships between positions of the features and positions of the fiducial marks;adjust a position of the instrument or the article responsive to the predicted positions of the features; andcontrol the instrument to perform the operation on the article.