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:
Apr. 03, 2012
Filed:
Mar. 07, 2008
Takashi Fujiwara, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Koji Minami, Tokyo, JP;
Hironobu Yasui, Tokyo, JP;
Takashi Fujiwara, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Koji Minami, Tokyo, JP;
Hironobu Yasui, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A noise reducer for a signal determines a direction of correlation for each picture element (pixel) by calculating sums of absolute differences between a block centered on the pixel and neighboring blocks centered on surrounding pixels and choosing the direction of the neighboring block with the least sum of absolute differences. The pixel is then filtered one-dimensionally by averaging it with neighboring pixels located in the direction of correlation. This noise reduction method is simple, reliable, and avoids needless loss of detail.