×

Automated coin grading system

  • US 5,220,614 A
  • Filed: 02/22/1991
  • Issued: 06/15/1993
  • Est. Priority Date: 02/22/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. An image capture system, comprising:

  • translation means for moving a first object in two dimensions, said two dimensions forming a plane;

    rotation means for rotating said first object within said plane;

    means including a camera for forming a first electronic image of said first object;

    means for storing and retrieving a first electronic image of a reference object, said reference object being of the same type of object as said first object;

    means for locating a distinct landmark on said first object;

    location comparison means for comparing a location of said distinct landmark with a location of a corresponding landmark on said reference object;

    orientation comparison means for comparing an orientation of said landmark with an orientation of said corresponding landmark;

    translation and orientation control means for causing said translation means to move said first object a distance corresponding to a difference in locations of said first object landmark and said reference object landmark and for rotating said first object through an angle corresponding to an angular difference in orientations of said two landmarks;

    means for causing said camera to form a second electronic image of said first object such that said second image of said first object is aligned with said first image of said reference object, said alignment resulting from movement of said object by said rotation means and said translation means,wherein said translation and orientation control means further comprises means for positioning said distinct landmark on said first object in respect to said corresponding landmark on said reference object, subsequently rotating said first object about the center of said distinct landmark through a computed angular offset between a second landmark on said first object and a second landmark on said second object.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×