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. 29, 2019
Filed:
Mar. 27, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Yudai Nakamura, Tokyo, JP;
Tomonori Fukuta, Tokyo, JP;
Masashi Kamiya, Tokyo, JP;
Masahiro Naito, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A luminance variation (dI) pertaining to each pixel is calculated () using a plurality of captured images obtained by image capturing under different illumination conditions, a texture variation (dF) pertaining to each pixel is calculated () using a plurality of captured images obtained by image capturing at different time points, and a subject region is extracted () based on the luminance variation (dI) and the texture variation (dF). A variation in the texture feature (F) pertaining to each pixel between the images is calculated as the texture variation (dF). The subject can be extracted with a high accuracy even when there are changes in the ambient light or the background.