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:
Aug. 26, 2014
Filed:
Nov. 05, 2010
Takeo Nozaki, Tokyo, JP;
Takeo Nozaki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A device is provided with a luminance histogram calculation unit which generates a luminance histogram showing appearance frequency of luminance values contained within the infrared image and determines a luminance value corresponding to a peak in the luminance histogram as a background luminance level of the background; a luminance shift calculation unit which sets the background luminance value as an intermediate value in luminance range width of the infrared image and generates a luminance shift image by linearly shifting other luminance values in the infrared image based on the intermediate value; a reversed image processing unit which generates a reversed shift image wherein the luminance level of the luminance shift image is reversed; and a luminance calculation processing unit which generates a calculation-processed image by performing calculation processing based on the difference in the luminance values at corresponding positions in the luminance shift image and the reversed shift image.