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.

Date of Patent:
Apr. 24, 2012

Filed:

Dec. 19, 2007
Applicant:

Satoru Takeuchi, Shijyonawate, JP;

Inventor:

Satoru Takeuchi, Shijyonawate, JP;

Assignee:

Sanyo Electric Co., Ltd., Moriguchi, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A representative-value calculator calculates a representative value of signal values of pixels included in each of divided regions of a neighboring region of a pixel of interest. The divided regions are obtained by dividing the neighboring region into the predetermined number of divisions. The number of divisions is determined based on a frequency band in an input image signal. A difference-absolute-value calculator calculates a difference absolute value between a signal value of the pixel of interest and each of the representative values of the respective divided regions. A weight calculator calculates a weight for each of the representative values of the respective divided regions according to the difference absolute value. A normalization processor normalizes the sum of products of the representative values of the respective divided regions and the weights for the representative values of the respective divided region.


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