Patent ID: 6954551

Claim:
A method of determining orientation of an object from a two-dimensional source, said method comprising: providing a plurality of library images of an object, wherein each of the library images depicts the object in a different orientation, each of the plurality of library images having detectable pixels; calculating the number of said detectable pixels of each of said library images; determining an intensity of said detectable pixels of each of said library images; providing an object image having detectable pixels; calculating the number of said detectable pixels of said object image; determining an intensity of said detectable pixels of said object image; resizing said object image by the ratio of the square root of the quotient of said number of said detectable pixels of one of said library images and said number of said detectable pixels of said object image; comparing said intensity of said detectable pixels of each of said library images to said intensity of said detectable pixels of said object images to determine a match score for each of said library images relative to said object image, to thus determine which one of said library images at least substantially matches an orientation of said object; selecting said library image having a maximum match score; and determining an orientation of said object from said library image having said maximum match score.