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:
Jul. 24, 2012
Filed:
Jan. 19, 2010
Shih-tseng Lee, Taipei, TW;
Yau-zen Chang, Taoyuan County, TW;
Chan-peng Lo, Taichung County, TW;
Chang-Gung University, Taoyuan County, TW;
Abstract
The present invention discloses an optical tracking device and a positioning method thereof. The optical tracking device comprises several light-emitting units, several image tracking units, an image processing unit, an analysis unit, and a calculation unit. First, the light-emitting units are correspondingly disposed on a carrier in geometric distribution and provide light sources. Secondly, the image tracking units track the plurality of light sources and capture images. The images are subjected to image processing by the image processing unit to obtain light source images corresponding to the light sources from each image. Then the analysis unit analyzes the light source images to obtain positions and colors corresponding to the light-emitting units. Lastly, the calculation unit establishes three-dimensional coordinates corresponding to the light-emitting units based on the positions and colors and calculates the position of the carrier based on the three-dimensional coordinates.