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:
Mar. 28, 2017
Filed:
Oct. 19, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Amit Kumar Gupta, Liberty Grove, AU;
Ashley John Partis, Camperdown, AU;
David Kenji See, Artarmon, AU;
Hiroshi Tojo, Fuchu, JP;
Peter Jan Pakulski, Marsfield, AU;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed are a method and apparatus for adjusting a set of luminance values associated with a set of visual elements in a current frame () of a video sequence for object detection (). The method determines (), for each of a plurality of scenarios (SO, SI, S2), a set of adjusted luminance values based on a corresponding luminance compensation value, and accumulates (), for each scenario, a set of brightness counts and darkness counts of the current frame based on the set of adjusted luminance values. A metric () is calculated for each scenario based on the set of brightness counts and darkness counts and one of scenarios is selected based on the calculated metric. The method then selects () the adjusted luminance value associated with the selected scenario as an adjusted set of luminance values associated with the current frame of the video sequence.