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. 07, 2015

Filed:

Jul. 05, 2010
Applicant:

Akihiko Iketani, Tokyo, JP;

Inventor:

Akihiko Iketani, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); H04N 1/407 (2006.01); G06T 5/00 (2006.01); H04N 1/409 (2006.01); H04N 19/30 (2014.01); H04N 19/80 (2014.01); H04N 19/98 (2014.01);
U.S. Cl.
CPC ...
H04N 1/4072 (2013.01); G06T 5/004 (2013.01); G06T 5/009 (2013.01); H04N 1/4092 (2013.01); H04N 19/30 (2014.11); H04N 19/80 (2014.11); H04N 19/98 (2014.11); G06T 2207/10048 (2013.01);
Abstract

There is provided an image dynamic range compression system which can compress a dynamic range for which the visibility of a low-frequency image is ensured while preserving a high-frequency image. An image converting unit converts an input image into a compressed image having a narrower dynamic range than the input image. A high-frequency image extracting unit extracts a high-frequency image from the input image. An image synthesizing unit synthesizes a compressed image and the high-frequency image. Further, by adaptively changing synthesizing method of ensuring the visibility of images to synthesize, the image synthesizing unit synthesizes these images.


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