The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
May. 23, 1996
Robert E. Borchers, Lake Oswego, OR (US);
Joel C. Johnson, Lake Oswego, OR (US);
Eric Thomas Peterson, Portland, OR (US);
Nike, Inc., Beaverton, OR (US);
Abstract
A device and method is provided for quickly and accurately determining the size and shape of a human extremity such as a foot by projecting light around a periphery of the extremity and capturing an image of the illuminated foot through a transparent plate. Various embodiments contemplate using light having a wavelength in the near-infrared range to reduce contrast problems caused by dyes used in socks and skin tone problems created by highly pigmented individuals. An image of the foot is digitized and stored in a computer memory in both an illuminated state and a non-illuminated state, and the two images are subtracted. Additional image processing steps on the subtracted image result in various measurement quantities such as foot length, width, arch length, heel width, and arch height.