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:
Jan. 02, 2018

Filed:

Mar. 26, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Akira Ohno, Tokyo, JP;

Yoshinori Ito, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06K 9/46 (2006.01); G06T 5/40 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30247 (2013.01); G06K 9/4642 (2013.01); G06K 9/4647 (2013.01); G06T 5/40 (2013.01); G06K 2009/4666 (2013.01);
Abstract

The feature amount of each pixel of an image is received. If the frequency value of the feature amount is registered in the second memory accessible at higher speed than the first memory which stores frequency values of respective feature amounts, the frequency value in the second memory is increased. If the frequency value is not registered, the frequency value is read out from the first memory into the second memory, and increased. With this processing, a histogram of the feature amounts of the respective pixels of the image is generated. The bins of the histogram are rearranged so that bins with high frequency values are close to each other in the histogram.


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