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:
Jul. 10, 2012
Filed:
Mar. 16, 2007
Masako Asamura, Tokyo, JP;
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Masako Asamura, Tokyo, JP;
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A video noise reducer processes a frame difference signal equal to the difference between the video signal of the current frame and the video signal of the preceding frame or the difference between the video signal of the current frame and the noise-reduced video signal of the preceding frame to obtain a motion detection signal and a noise detection signal. The difference between the motion detection signal and the noise detection signal is then processed to obtain a recursion coefficient. The frame difference signal is multiplied by the recursion coefficient and the resulting product is additively combined with the video signal of the current frame to reduce noise without generating significant motion artifacts.