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.

Date of Patent:
Mar. 24, 2015

Filed:

Oct. 19, 2010
Applicants:

Shawn Schaerer, Winnipeg, CA;

Gordon Scarth, Winnipeg, CA;

Steven Robbins, Winnipeg, CA;

Inventors:

Shawn Schaerer, Winnipeg, CA;

Gordon Scarth, Winnipeg, CA;

Steven Robbins, Winnipeg, CA;

Assignee:

Imris Inc, Winnipeg, MB, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 13/02 (2006.01); A61B 19/00 (2006.01);
U.S. Cl.
CPC ...
A61B 19/5244 (2013.01); A61B 19/44 (2013.01); A61B 2019/444 (2013.01); A61B 2019/5255 (2013.01); A61B 2019/5265 (2013.01); A61B 2019/5483 (2013.01);
Abstract

A system for detecting a position of an object such as a surgical tool in an image guidance system includes a camera system with a detection array for detecting visible light a processor arranged to analyze the output from the array. Each object to be detected carries a single marker with a pattern of contrasted areas of light and dark intersecting at a specific single feature point thereon. The pattern includes components arranged in an array around the specific location arranged such that the processor is able to detect an angle of rotation of the pattern around the location and which are different from other markers of the system such that the processor is able to distinguish each marker from the other markers.


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