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:
Mar. 19, 2013
Filed:
Mar. 10, 2009
Koji Aoyama, Saitama, JP;
Hideki Watanabe, Saitama, JP;
Hiroaki Yamajo, Tokyo, JP;
Masuyoshi Kurokawa, Kanagawa, JP;
Koji Aoyama, Saitama, JP;
Hideki Watanabe, Saitama, JP;
Hiroaki Yamajo, Tokyo, JP;
Masuyoshi Kurokawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An image processing device includes: a step calculator configured to calculate, as a step, a difference in pixel values of pixels in a neighborhood with respect to each pixel in an image; a classifier configured to classify the pixels into classes for areas of the steps; a boundary ratio calculator configured to calculate, as a boundary ratio, a ratio of the number of pixels at a block boundary for each of the classes; and a block noise strength determinator configured to determine, as a block noise strength of the image, the step that is larger than a predetermined threshold and that is at a class having a largest value.