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:
Apr. 16, 2013
Filed:
Nov. 23, 2009
Qiang Liu, Artamon, AU;
David Grant Mcleish, Northmead, AU;
Jarrad Michael Springett, Cambridge, GB;
Qiang Liu, Artamon, AU;
David Grant McLeish, Northmead, AU;
Jarrad Michael Springett, Cambridge, GB;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed herein are a method and system for classifying a detected region of change of a video frame as one of an abandoned object event and an object removal event, wherein a plurality of boundary blocks define a boundary of said region of change. For each one of a set of said boundary blocks (), the method determines a predicted edge characteristic () and an observed edge characteristic () for said boundary block. The method then determines an individual block score () for said boundary block, based on said predicted edge characteristic () for said boundary block and said observed edge characteristic () for said boundary block. Once all of the set of boundary blocks have been processed, the method determines a global score () for said region of change, based on said individual block scores of said boundary blocks. The method then classifies the region of change () as an abandoned object event or an object removal event, based on how the overall score relates to a threshold.