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:
Jan. 29, 2002
Filed:
Feb. 24, 1998
Takao Tsuruoka, Machida, JP;
Taketo Tsukioka, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An image signal processor includes an area extracting unit for extracting from an image signal color signals of a local area of a predetermined size which includes a desired pixel. A maximum variance signal selecting unit selects one of the color signals which exhibits a maximum variance over the average variance of the color signals in the local area. In a signal modifying unit, the shape of the other color signals than the selected color signal is modified so that their parameters are equal to the parameters of the selected color signal. In a candidate image generating unit, the other modified color signals and the selected color signal are combined together to generate a plurality of reference image candidates. A reference image selecting unit than selects as a reference image one of the reference image candidates on the basis of a given evaluation function. In a restoring unit, dropout color signals are then restored with the use of the reference image determined by the reference image selecting unit.