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:
Aug. 30, 2016

Filed:

Feb. 22, 2012
Applicants:

Mustafa Yagcioglu, Ankara, TR;

Erkan Yavuz, Ankara, TR;

Ozgur Yilmaz, Ankara, TR;

Selcuk Sandikci, Eindhoven, NL;

Inventors:

Mustafa Yagcioglu, Ankara, TR;

Erkan Yavuz, Ankara, TR;

Ozgur Yilmaz, Ankara, TR;

Selcuk Sandikci, Eindhoven, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00362 (2013.01); G06T 7/0042 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/30204 (2013.01);
Abstract

The present invention relates to the field of computation and simulation and covers methods to optimize the fiducial marker positions in optical object tracking systems, by simulating the visibility. The method for optimizing tracker system which is realized to simulate camera and fiducial positions and pose estimation algorithm parameters to optimize the system comprises the steps of; acquire mesh data representing possible active marker positions and orientations on a tracked object, pose data representing possible poses of tracked object, camera positions and orientations; compute visibility of each node from all camera viewports and generate a visibility value list; select the node with highest visibility count as a marker placement node; remove nodes closer to the selected node than a threshold; remove the pose(s) having a predetermined number of selected nodes; does percentage of all poses have predetermined number of selected nodes?; project selected node positions on the image plane of each camera viewport and calculate the pose of the mesh using the tracker algorithm to be optimized; calculate pose error and pose coverage by comparing algorithm results with initial data; record and output results; and select among the results a parameter set satisfying at least one constraint.


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