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:
Aug. 11, 2015
Filed:
May. 18, 2012
Applicants:
Mayu Ogawa, Osaka, JP;
Shinji Kitamura, Kyoto, JP;
Masao Ozawa, Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01); H03M 7/16 (2006.01); H04N 19/176 (2014.01); H04N 19/13 (2014.01); H04N 19/593 (2014.01); H04N 19/126 (2014.01); H04N 19/154 (2014.01); H04N 19/182 (2014.01); G06K 9/46 (2006.01); H04N 19/70 (2014.01); H04N 19/46 (2014.01); H04N 19/42 (2014.01);
U.S. Cl.
CPC ...
H03M 7/16 (2013.01); H04N 19/126 (2014.11); H04N 19/13 (2014.11); H04N 19/154 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/593 (2014.11); H04N 19/42 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11);
Abstract
An image coding method includes: a predictive pixel generation step of generating a predictive value from at least one surrounding pixel located near a compression target pixel; a code conversion step of code-converting the pixel data to generate a Gray code; and quantizing bit change information (exclusive OR) between the generated Gray code and a Gray code of the predictive value to a quantization value, to compress the pixel data. This prevents significant image quality degradation, so that high image quality can be achieved.