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:
Oct. 01, 2013
Filed:
Jun. 13, 2008
Haizhou Ai, Beijing, CN;
Yuan LI, Los Angeles, CA (US);
Shihong Lao, Kyoto, JP;
Takayoshi Yamashita, Kizugawa, JP;
Haizhou Ai, Beijing, CN;
Yuan Li, Los Angeles, CA (US);
Shihong Lao, Kyoto, JP;
Takayoshi Yamashita, Kizugawa, JP;
Omron Corporation, Kyoto, JP;
Tsinghua University, Beijing, CN;
Abstract
The present invention relates to a tracking method and a tracking device adopting multiple observation models with different life spans. The tracking method is suitable for tracking an object in a low frame rate video or with abrupt motion, and uses three observation models with different life spans to track and detect a specific subject in frame images of a video sequence. An observation model I performs online learning with one frame image prior to the current image, an observation model II performs online learning with five frames prior to the current image, and an observation model III is offline trained. The three observation models are combined by a cascade particle filter so that the specific subject in the low frame rate video or the object with abrupt motion can be tracked quickly and accurately.