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. 30, 2011
Filed:
Dec. 15, 2006
Hidetoshi Umeda, Tokyo, JP;
Hidetoshi Umeda, Tokyo, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
It is possible to improve a response of a dynamic range expansion processing. The present image signal processing method includes a first step (ST) of extracting distribution parameters from a distribution of pixel signal levels composing an image signal of one picture, a second step (ST, ST) of determining a target value (BP, BP, etc.) of a break point based on extracted distribution parameters for a break point at which an inclination of an image signal level changes with respect to a cumulative change of amount of incident light upon pixels of the imaging portion changes, and a third step (ST, ST) of controlling the imaging portion so as to obtain a target value and change an output saturation characteristic of the image signal.